WO2011093563A1 - Casting mold plate, casting mold plate assembly, and casting mold including same - Google Patents

Abstract

For a casting mold plate, a casting mold plate assembly, and a casting mold including the same in which high-quality slabs with a high yield rate can be manufactured, the present invention provides a casting mold plate, a casting mold plate assembly, and a casting mold including the same, wherein: one end is formed with a plurality of first slots arranged in parallel; and a distance to the other side that opposes the one side from a lower side of the first slots in the central part is shorter than a distance to the other side from the lower side of the first slots at the edges.

Description

Casting mold plate, casting mold plate assembly and casting mold having the same

The present invention relates to a casting mold plate, a casting mold plate assembly and a casting mold having the same, and more particularly, a casting mold plate, a mold mold assembly for casting, which enables the production of high-quality cast steel with a high yield. It relates to a casting mold having the same.

In general, the casting mold is related to the shape of the product to be formed in the casting process, and is used to make a product having a desired shape by passing a molten metal (for example, a molten metal) formed at a high temperature.

In the casting process, the molten metal of the blast furnace is introduced into a mold of a casting machine to form a cast. In the case of a continuous casting process, the molten metal is continuously poured into a mold of a continuous casting machine and solidified, thereby slab, bloom or billet. ), Etc. During the casting process, the molten metal undergoes an initial solidification process of forming a solidification layer on the outer portion of the mold during the casting process, and then solidifies completely through cooling or the like using a spray or the like to become a final product.

While the initial solidification process in the middle of the molten metal passes through the mold has the greatest effect on the quality of the final product, the conventional mold and the like have a problem that a uniform solidification layer may not be formed during this initial solidification process.

The present invention is to solve various problems including the above problems, to provide a casting mold plate, a casting mold plate assembly and a casting mold having the same to enable the production of high-quality cast steel with a high yield. The purpose.

The present invention has one surface with a plurality of first slots arranged in parallel, and the distance from the bottom of the first slot in the center to the other surface opposite to the one surface is equal to the bottom of the first slot at the edge. Provided is a mold plate for casting, which is shorter than the distance to the other side.

According to another aspect of the present invention, the distance from the bottom to the other surface may be longer as the first slot formed on the edge of the one surface.

According to another feature of the present invention, the distance from the bottom of the first slot to the other surface may be longer from the central portion of the one surface to the edge.

According to another feature of the present invention, a second slot intersecting the first slots may be further formed on the one surface.

According to still another feature of the present invention, the other surface may be a molten contact surface.

According to another feature of the invention, it has a concave portion on the upper side of the other surface, the first slots of the one surface may be extended from the upper direction to the lower direction.

According to another feature of the invention, the other surface may further comprise a flat portion below the recess.

According to still another feature of the present invention, the depth of the concave portion in the one surface direction may be made shallower from the top to the bottom.

According to another feature of the invention, it may be further comprising a cover member disposed to be spaced apart from the bottom surface of the first slots of the portion of the first slots to define a cooling channel along the top to the bottom direction. have.

According to another feature of the invention, the inner wall of the cover member in the first slots may be parallel to the bottom surfaces of the first slots.

According to another feature of the invention, the cooling medium inlet and outlet may be formed on the other surface.

According to another feature of the invention, the separation distance of the first slots in the central portion of the one surface may be smaller than the separation distance of the first slots at both ends of the one surface.

According to still another feature of the present invention, the distance between the centers of the adjacent first slots may be constant.

The present invention also provides a mold mold assembly for casting, comprising a front mold plate, which is any one of the mold mold plates as described above, and a rear mold plate in contact with the one side of the front mold plate.

According to another aspect of the present invention, a cooling medium inlet and an outlet may be formed on a surface of the rear mold plate that faces the surface of the front mold plate.

The present invention also provides a mold mold assembly for casting, comprising a front mold plate and a back mold plate, wherein one of the mold mold plates as described above and one surface thereof is in contact with the front mold plate.

The present invention also includes a mold for casting, comprising a plurality of mold plate assemblies coupled to define a slab shape and comprising a mold plate of any one of the mold mold plates as described above in the mold plate assemblies. to provide.

According to the present invention, the mold mold for casting, the mold mold assembly for casting, and the casting mold having the same, the mold mold for casting, the mold mold assembly for casting, which enables the production of high quality cast steel with high yield and Casting mold having the same can be implemented.

1 is a perspective view schematically showing a casting front mold plate according to an embodiment of the present invention.

FIG. 2 is a perspective view schematically showing a casting back mold plate that may be attached to the front mold plate of FIG. 1. FIG.

FIG. 3 is a cross-sectional view schematically illustrating the casting front mold plate of FIG. 1.

4 is a perspective view schematically illustrating a casting mold including the casting front mold plate of FIG. 1.

5 is a conceptual diagram schematically showing a process of manufacturing a cast using a casting mold.

FIG. 6 is a plan view schematically illustrating the casting mold of FIG. 4.

7 is a cross-sectional view schematically showing a casting front mold plate according to another embodiment of the present invention.

8 is a cross-sectional view schematically showing a casting front mold plate according to another embodiment of the present invention.

9 is a front view schematically showing a casting mold front according to another embodiment of the present invention.

10 is a perspective view schematically showing a casting mold back mold according to another embodiment of the present invention.

FIG. 11 is a sectional view schematically showing the back mold plate for casting of FIG. 10.

12 is a cross-sectional view schematically showing a casting mold back mold according to another embodiment of the present invention.

13 is a cross-sectional view schematically showing a casting mold back mold according to another embodiment of the present invention.

Figure 14 is a front view schematically showing a casting mold back mold according to another embodiment of the present invention.

15 is a perspective view schematically showing a mold plate according to another embodiment of the present invention.

16 is a cross-sectional view taken along the line II-II 'of the mold plate of FIG.

FIG. 17 is a cross-sectional view taken along line III-III ′ of the mold plate of FIG. 15.

18 is a perspective view schematically showing a mold plate according to another embodiment of the present invention.

19 is a cross-sectional view taken along the line VV ′ of the mold plate of FIG. 18.

20 is a perspective view schematically showing a mold plate according to another embodiment of the present invention.

21 is a perspective view schematically showing a mold plate assembly according to another embodiment of the present invention.

22 is a perspective view schematically showing a second mold plate of the assembly of the mold plate of FIG. 21.

FIG. 23 is a cross-sectional view taken along line IX-IX 'of the mold plate assembly of FIG.

24 is a cross-sectional view taken along the line X-X 'of the mold plate assembly of FIG.

25 is a perspective view schematically showing a mold according to another embodiment of the present invention.

FIG. 26 is a plan view schematically illustrating the mold of FIG. 15.

FIG. 27 is a graph schematically illustrating a simulation temperature distribution of the molten contact surface in one cross section of the casting front mold plates illustrated in FIG. 1.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. In the drawings, the components may be exaggerated or reduced in size for convenience of description.

In the embodiments of the present invention, the x-axis, the y-axis, and the z-axis are not limited to three axes on the Cartesian coordinate system, and may be interpreted in a broad sense including the same. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

In the embodiments of the present invention, the center portion and the end portion can be interpreted in a relative meaning within the range conventionally recognized in the art. That is, the central portion may be interpreted in a broad sense including not only the center of the subject but also an adjacent portion thereof, and the end portion may be interpreted in a broad sense including the adjacent portion as well as the extreme end.

1 is a perspective view schematically showing a casting front mold plate 110 according to an embodiment of the present invention, Figure 2 is a casting mold back mold that can be attached to the front mold plate 110 of FIG. 120 is a perspective view schematically showing FIG. 3 is a cross-sectional view schematically showing the casting front mold plate 110 of FIG. 1.

A plurality of first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ arranged in parallel are formed on one surface 110 a of the front mold plate 110 for casting according to the present embodiment. have. The other surface (the opposite surface) facing the one surface 110a is a surface in contact with the molten metal. The first slots 111, 112, 112 ', 113, 113', 114 and 114 'have a distance from the bottom of the first slot in the center to the other surface opposite to the one surface 110a at the edge. It is formed to be shorter than the distance from the bottom surface of the first slot to the other surface. In FIG. 1, the distance from the bottom of the first slot 112 to the other surface opposite to the one surface 110a is equal to the distance from the bottom of the first slot 112 'to the other surface opposite to the one surface 110a. Although shown, this is merely exemplary and may, of course, be different. The same is true in the following embodiments and modifications. The front mold plate may be formed of a copper alloy having a high thermal conductivity. This also applies to the embodiments and modifications described later.

The casting back mold plate 120 as shown in FIG. 2, which may be attached to the front mold plate 110, may be in surface contact with the front mold plate 110. The back mold plate 120 may also be referred to as a water jacket. The back mold plate 120 may have a second slot formed on one surface 120a. In FIG. 2, two second slots 127 and 128 are formed, but the number of second slots may be one or plural, and various modifications are possible. When the rear mold plate 120 is attached to the front mold plate 110, the one surface 120a comes into contact with one surface 110a of the front mold plate 110. In this case, the second slots 127 and 128 intersect the first slots 111, 112, 112 ′, 113, 113 ′, 114, and 114 ′. The back mold plate may be formed of copper alloy and / or stainless steel or the like. The same is true in the following embodiments and modifications.

When the front mold plate 110 and the rear mold plate 120 are combined, this becomes a mold plate assembly. In the mold plate assembly, the first slots 111, 112, 112 ′, 113 and 113 of the front mold plate 110 are formed. ', 114 and 114' together with one surface 120a of the rear mold plate 120 form first channels through which the cooling medium can pass. Of course, the second slots 127 and 128 of the rear mold plate 120 also form second channels through which the cooling medium can pass along with the one surface 110a of the front mold plate 110. As a result, in the mold mold assembly for casting, the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ are face 110a in the direction of the rear mold plate 120 of the front mold plate 110. The second slots 127 and 128 are formed on the surface 120a of the rear mold plate 120 in the direction of the front mold plate 110. Through this, the cooling medium supplied through an inlet (not shown) which may be formed on the other surface 120b of the rear mold plate 120 passes through the second slot of the rear mold plate 120 to form the front mold plate 110. First slots 111, 112, 112 ′, 113, 113 ′, 114, 114 ′ of the first slots, and conversely, first slots 111, 112, 112 ′, 113 of the front mold plate 110. , 113 ', 114, 114' through the outlet (not shown) can be formed on the other side (120b) of the rear mold plate 120 through the second slot of the rear mold plate 120 It can be discharged to the outside.

4 is a perspective view schematically illustrating a casting mold 100 including the casting front mold plate 110 of FIG. 1. As shown in FIG. 4, the mold 100 for casting includes a mold plate assembly 131 having a front mold plate 110 as shown in FIG. 1 and a rear mold plate 120 as shown in FIG. 2. ). The casting mold 100 includes mold plate assemblies 132, 133, and 134 in addition to the mold plate assembly 131, such that four mold plate assemblies 131, 132, 133, and 134 are illustrated in FIG. 4. The shape of the molten metal that is injected into the mold 100 through the combined shape) is limited. 4 exemplarily illustrates that an inlet 129a through which a cooling medium is introduced and an outlet 129b through which the cooling medium is discharged are formed in the rear mold plate 120. Of course, inlets and outlets may be formed in the rear mold plates of the other mold plate assemblies 132, 133, and 134.

5 is a conceptual diagram schematically illustrating a process of manufacturing a cast using a casting mold 100 as shown in FIG. As shown in FIG. 5, the molten metal 2 formed at a high temperature flows into the mold 100 through the immersion nozzle 3 under the tundish 1, and passes through the mold 100. The solidification layer (4) is formed in the portion adjacent to the inner surface of the initial solidification process. After passing through the mold 100, it is cooled by a cooling medium sprayed through the spray nozzle 5 or the like, and the proportion of the solidified layer 4 is increased, so that the slab 6 having a predetermined shape, for example, a slab. And the like. It is moved by the guide roll 7 until it is a final product and / or after the final product, and as shown in FIG. 5, a plurality of spray nozzles 5 may be arranged, and the spray nozzles 5 and the guide rolls may be disposed. Various modifications are possible, such that (7) may be arranged alternately.

The initial solidification process of the molten metal (2) flowing into the mold 100 in such a slab manufacturing process is an important factor that determines the properties of the (sequential) casting is completed. As described above, the cooling medium is present in the first slots and the second slots formed in the front mold plate 110 and / or the rear mold plate 120, as described above during the casting process, the mold 100 by the cooling medium The inner surface of, that is, the other surface of the front mold plate 110 is cooled. Accordingly, the portion in contact with the other surface of the front mold plate 110 of the molten metal introduced into the mold 100 is cooled to form the solidification layer 4 in the initial solidification process. The solidification layer 4 during the initial solidification process is a solidification shell, and plays an important role in determining the basic shape and surface quality of the slab 6, which is the final product. Therefore, it is important to form a solidified shell having appropriate strength and no cracking of the surface to a uniform thickness.

However, if the arrangement of the channel, which is the passage through which the cooling medium moves in the mold 100, is not appropriate, the thickness of the solidification shell is not constant, so that the shape of the cast steel, which is the final product, may be distorted or cracks may occur on the surface of the cast steel. In the portion indicated by the dotted line in FIG. 6, which is a plan view schematically showing the casting mold 100 of FIG. 4, the cooling effect by the adjacent mold plate assemblies is simultaneously received. For example, in the upper right part of the portions indicated by the dotted lines of FIG. 4, the molten metal in the mold 100 receives the cooling effect by the mold plate assembly 132 and the mold plate assembly 133 simultaneously. In this case, for example, if the first slots are formed such that the distance from the bottom of the first slots formed on the front mold plate to the other surface opposite to the one surface 110a is constant, the first portion of the mold plate assembly 132 may be formed at the portion indicated by the dotted line. The cooling effect by the one slots and the cooling effect by the first slots of the mold plate assembly 133 are simultaneously received, so that the cooling effect is relatively larger than in other parts not indicated by the dotted line. This lowers the uniformity of the thickness of the solidification shell to be formed, so that cracks occur on the surface of the solidification shell, or the shape of the cast steel, which is the product during cooling by the spray nozzle 5 or the final product after cooling, is distorted, Cracks may occur.

In the case of the front mold plate 110 according to the present embodiment, as described above, the distance from the bottom of the first slot in the center to the other surface opposite to the one surface 110a is equal to the bottom of the first slot at the edge. By making it narrower than the distance to the other surface, such a phenomenon can be prevented from occurring. That is, even in a portion that receives the cooling effect by the mold plate assembly 132 and the cooling effect by the mold plate assembly 133 at the same time, the bottom surface of the first slot that affects the cooling of the portion is on the one surface 110a. Since the distance to the opposite surface is longer than the distance from the bottom of the first slot to the other surface which affects the cooling of the other portion, consequently the cooling effect on the portion adjacent to the inner surface of the mold 100 of the molten metal becomes uniform. can do. As a result, the uniformity of the thickness of the solidification shell during the initial solidification process is kept constant and the cracks on the surface can be effectively prevented. As a result, the shape of the cast product, which is the product during cooling by the spray nozzle 5 or the like or the final product after cooling, is not distorted. Without causing cracks or the like on the surface of the cast steel, high quality cast steel can be produced with high yield.

27 is a graph showing a simulation temperature distribution of the molten contact surface in one cross section of the casting front mold plate according to the present embodiment and the casting front mold plate according to the comparative example. FIG. 27 is a graph of only the half model, which is the half leading from the center to the end of the actual model, and the other half model can be understood to yield symmetrical results with respect to the half model and the center.

The casting front mold plate according to the comparative example is assumed to have first slots which extend in parallel with the casting direction (in the direction of ± z axis in FIG. 1) and have a constant depth regardless of the position. The front mold plate for casting according to this embodiment (experimental example) also has first slots extending parallel to the casting direction (in the ± z-axis direction in FIG. 1). However, in the case of the first slots provided in the casting front mold plate according to the experimental example, the distance from the bottom of the first slot in the center to the surface contacting the molten metal is in contact with the molten metal at the bottom of the first slot at the edge. Shorter than the distance to the face The casting front mold plate according to the experimental example may correspond to the casting front mold plate 110 of FIG. 1.

In this simulation, the front mold plates for casting according to Comparative Examples and Experimental Examples were made of the same copper alloy, and their thermal conductivity was about 320 W / mK, and the first slot had the same cooling water as about 30 ° C. as the cooling medium. Assume that it is supplied to the center part. It is assumed that the molten metal is supplied at about 1500 ° C during the casting process.

Referring to FIG. 27, in the case of the front mold plate for casting according to the comparative example, the temperature difference between the center portion C and the end portion E is not large, but the temperature fluctuates like a wave as it passes across the first slots. Able to know. On the other hand, in the case of the front mold plate for casting according to the experimental example it can be seen that the temperature fluctuates from the central portion (C) toward the end (E) while the large fluctuation of the temperature as in the comparative example does not appear.

This temperature distribution shows that in the casting front mold plate according to the experimental example, the cooling rate at the center thereof is greater than the cooling rate at the end thereof. On the other hand, the temperature distribution for the other half model can be understood to be symmetrical with respect to the center part. Therefore, as described above, the cooling rate at both ends of the front mold plate for casting can be adjusted to be lower than the cooling rate at the center thereof. It is also possible to avoid large fluctuations in temperature. This cooling rate distribution of the unitary casting front mold plate may contribute to the uniformity of the cooling rate distribution in the casting mold 100 as shown in FIG. 4 as described above.

Meanwhile, in the case of the front mold plate 110 according to the present exemplary embodiment as shown in FIGS. 1 and 3, the distance from the bottom of the first slot to the other surface is longer from the center of the one surface 110a to the edge. It is shown. That is, the distance from the bottom surface of the first slot 112 to the other surface 110b is longer than the distance from the bottom surface of the first slot 111 to the other surface 110b, and the other surface (from the bottom surface of the first slot 112). The distance from the bottom of the first slot 113 to the other surface 110b is longer than the distance to 110b. As such, the distance from the bottom to the other surface 110b may be longer as the first slot formed at the edge side. However, the present invention is not limited thereto.

For example, as shown in FIG. 7 showing a casting front mold plate 110 according to another embodiment of the present invention, the first slot 111, the first slot 112 and the first slot 112 '. ), The distance from the bottom surface of the slot to the other surface 110b is the same, and the distance from the bottom surface of the first slot 113 to the other surface 110b may be longer than this distance. Of course, unlike shown in Figure 7, between the first slot 113 and the first slot 114, the distance from the bottom surface to the other surface 110b may be further provided with the same slot as the case of the first slot 113 have. That is, the distance from the bottom of the first slot 111 located at the center of the one surface 110a of the front mold plate 110 to the other surface 110b is different from the bottom of the first slot 114 located at the edge of the other surface 110b. Shorter than the distance to). In particular, when manufacturing a slab with a thin thickness but a wide slab, such as slabs, the distance from the bottom of the first slots located in the center to the other surface (110b) is constant, but in the case of the first slots located at the edge from the bottom to the other surface (110b) It may be considered that the distance of is longer than the distance from the bottom of the first slots located in the center to the other surface (110b).

Of course, as shown in FIG. 8, which is a cross-sectional view schematically showing the front mold frame 110 according to another exemplary embodiment of the present invention, the distance from the bottom surface of the first slot 111 to the other surface 110b is determined. Various modifications are possible, such as being shorter than the distance from the bottom surface of one slot 112 to the other surface 110b. In any case, the distance from the bottom of the first slot 114 positioned at the edge to the other surface 110b is the other surface 110b at the bottom of one slot of the first slots 111, 112, 112 ′ positioned at the center. Longer distance is enough. The same is true in the following embodiments and modifications.

In the above-mentioned front mold plates according to the above embodiments, the distance between the centers of the adjacent first slots may be constant. In other words, the distance between the bottom surface of the first slot at the edge and the other surface is longer than the distance from the bottom surface of the first slot to the other surface in the state where the distance between the centers of the adjacent first slots is constant. It is possible to make the molten metal in the mold receive a uniform cooling effect on the entire inner surface of the mold having the mold plate. Of course, the separation distance of the first slots at the center portion is smaller than the separation distance of the first slots at both ends, so that the molten metal in the mold may receive a uniform cooling effect on the entire inner surface of the mold having such a front mold plate.

9 is a front view schematically showing a casting front mold plate 110 according to another embodiment of the present invention. The casting front mold plate 110 according to the present embodiment differs from the casting front mold plate according to the embodiment described above with reference to FIGS. 7 and 8 to further include a second slot. In FIG. 9, two second slots 117 and 118 are further provided, but may be one or plural. The second slots intersect the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′, so that the second slots 111, 112, 112 ′, 113, 113 ′, 114. , 114 ') may be formed on one surface 110a.

In the above-described embodiment with reference to FIGS. 7 and 8, first slots are formed on the front mold plate and second slots are formed on the rear mold plate, so that when the front mold plate and the rear mold plate are combined, The first slots in the direction of the front mold plate of the first mold and the rear mold plate form the first channels, and the second slots in the direction of the back mold plate of the front mold plate and the second slot of the rear mold plate form the second channel. In the case of the front mold plate 110 according to the present embodiment as shown in FIG. 9, the first slots 111, 112, 112 ′, 113 and 113 ′, are formed on one surface 110 a of the front mold plate 110. 114 and 114 'and second slots 117 and 118 are formed. Therefore, even if no slot is formed in the rear mold plate, the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ and the second slots 117 and 118 of the front mold plate 110. The first channels and the second channels are formed together with the surface of the rear mold plate in the direction of the front mold plate 110. Of course, the inlet and outlet of the cooling medium may be formed on the opposite side of the rear mold plate.

In the case of the front mold plate according to the present embodiment, the distance from the bottom surface to the other surface of the first slot 114 located at the edge is one slot among the first slots 111, 112, and 112 ′ positioned at the center. By making the distance from the bottom to the other side of the longer, it is possible to produce a high quality cast when manufacturing the cast through the mold using the same.

According to another embodiment of the present invention, it is possible to implement a mold plate assembly for casting. The casting mold plate assembly may be a form in which the front mold plate and the rear mold plate are combined, for example, any one of the components indicated by reference numerals 131, 132, 133, and 134 in FIG. 4. Such a mold plate assembly for casting according to the present embodiment may be provided with any one of the front mold plates according to the above-described embodiments and modifications thereof. That is, a plurality of first slots arranged in parallel are formed on a surface of the front mold plate in the rear mold plate direction, and a distance from the bottom surface of the first slot positioned at the edge to the other surface thereof is one of the first slots located at the center portion. The distance from the bottom surface of one slot to the other surface may be longer. In this case, when using the mold 100 of the shape as shown in Figure 4 formed by using a plurality of such mold plate assemblies, a solidification shell of a constant thickness without cracks, etc. in the casting process is formed, resulting in high quality Cast steels can be produced in high yields. Here, the other surface of the front mold plate facing the surface in the direction of the rear mold plate may be a surface in contact with the molten metal, and the cooling medium inlet and the outlet may be formed on the other surface of the front mold plate facing the surface of the front mold plate.

Of course, even in this case, the first slots formed on the edge of the casting mold plate assembly may have a longer distance from the bottom surface of the first slot to the other surface, and more specifically, from the center to the edge of the casting mold plate assembly. The distance from the bottom of the first slot to the other surface may be increased. Of course, in a form similar to that shown in FIG. 7, the first slots may be formed such that the distance from the bottom to the other surface of the first slot is constant at the center part. In any case, the distance from the bottom to the other surface of the first slot at the center part may be By shortening the distance from the bottom of the first slot at the edge to the other surface, the above effects can be obtained.

In the mold mold assemblies for casting according to the embodiments described above so far, the distance between the centers of the adjacent first slots may be constant. That is, such a mold is formed such that the distance from the bottom to the other surface of the first slot at the center is shorter than the distance from the bottom to the other surface of the first slot at the edge while the distance between the centers of the adjacent first slots is constant. It is possible to ensure that the molten metal in the mold receives a uniform cooling effect over the entire inner surface of the mold having the plate assemblies. Of course, the separation distance of the first slots at the center portion is smaller than the separation distance of the first slots at both ends, so that the molten metal in the mold may receive a uniform cooling effect on the entire inner surface of the mold having such a front mold plate.

On the other hand, in such a mold plate assembly, a second slot intersecting the first slots is further formed on at least one of a surface in the front mold plate direction of the front mold plate and a surface in the front mold plate direction of the rear mold plate. Of course you can. When the front mold plate and the back mold plate as shown in Figs. 1 and 2 are combined to form a mold plate assembly, the first slots are formed on the surface of the front mold plate in the direction of the back mold plate, and the second slot is It is a case where it forms in the surface of the front mold plate direction of a back mold plate. Of course, both the first slots and the second slots may be formed on the surface of the front mold plate in the direction of the back mold plate.

FIG. 9 is a perspective view schematically illustrating a casting rear mold plate 120 according to another embodiment of the present invention, and FIG. 10 is a casting front mold that may be attached to the rear mold plate 120 of FIG. 9. FIG. 11 is a perspective view schematically illustrating the plate 110, and FIG. 11 is a cross-sectional view schematically illustrating a combination of the casting rear mold plate 120 of FIG. 9 and the casting front mold plate 110 of FIG. 10.

A plurality of first slots 121, 122, 122 ′, 123, 123 ′, 124, and 124 ′ arranged in parallel are formed on one surface 120 a of the back mold plate 120 for casting according to the present embodiment. have. The one surface 120a is a surface in contact with the front mold plate 110 as described below. These first slots 121, 122, 122 ', 123, 123', 124, 124 'have a distance from the bottom of the first slot in the center to the other surface opposite to the one surface 120a at the edge. It is formed to be shorter than the distance from the bottom surface of the first slot to the other surface. In FIG. 9, the distance from the bottom of the first slot 122 to the other surface opposite to the one surface 120a is the same as the distance from the bottom of the first slot 122 'to the other surface opposite to the one surface 120a. Although shown, this is merely exemplary and may, of course, be different. The same is true in the following embodiments and modifications. The back mold plate may be formed of copper alloy and / or stainless steel having high thermal conductivity. This also applies to the embodiments and modifications described later.

The casting front mold plate 110 as shown in FIG. 10, which may be attached to the rear mold plate 120, may be in surface contact with the rear mold plate 120. The front mold plate 110 has one surface 110a in contact with the rear mold plate 120 and the other surface 110b in contact with the molten metal. The front mold plate may be formed of copper alloy or the like. The same is true in the following embodiments and modifications.

When the back mold plate 120 and the front mold plate 110 are combined, this becomes a mold plate assembly. In the mold plate assembly, the first slots 121, 122, 122 ′, 123, and 123 of the back mold plate 120 are formed. ', 124 and 124' together with one surface 110a of the front mold plate 110 form first channels through which the cooling medium can pass. As a result, a cooling medium supplied through an inlet (not shown) that may be formed on the other surface 120b of the rear mold plate 120 receives first slots 121, 122, and 122 ′ of the rear mold plate 120. , 123, 123 ', 124, and 124', and conversely, the cooling medium in the first slots 121, 122, 122 ', 123, 123', 124, and 124 'of the rear mold plate 120. Also may be discharged to the outside through an outlet (not shown) that can be formed on the other surface (120b) of the rear mold plate 120. Such a moldplate assembly can be used to make a casting mold, for example as shown in FIG.

In the case of the back mold plate 120 according to the present embodiment, as described above, the distance from the bottom of the first slot in the center to the other surface 120b opposite to the one surface 120a is equal to that of the first slot at the edge. It is narrower than the distance from the bottom face to the said other surface 120b. Since the same amount of cooling water is present in the first slots of the same depth, the cooling effect is the same / similar. However, the shallower the depth of the first slot, the less the amount of cooling water that can be present therein, the weaker the cooling effect. Therefore, in the case of using the rear mold plate 120 according to the present embodiment, as shown in Figure 4, even if the part receiving the cooling effect by the mold plate assembly 132 and the cooling effect by the mold plate assembly 133 at the same time And the other surface 120b at the bottom of the first slot in which the distance from the bottom of the first slot affecting the cooling of the part to the other surface 120b opposite the one surface 120a affects the cooling of the other part. Since it is longer than the distance to, the cooling effect by each of the first slots is reduced, and as a result, the cooling effect on the portion adjacent to the inner surface of the mold 100 of the molten metal can be made uniform. As a result, the uniformity of the thickness of the solidification shell during the initial solidification process is kept constant, and surface cracks are effectively prevented. As a result, the product during cooling by the spray nozzle (see FIG. 5) or the like, or the final product after cooling, The shape is not distorted and cracks or the like are not generated on the surface of the cast steel, and high quality cast steel can be produced with high yield.

Meanwhile, in the case of the back mold plate 120 according to the present embodiment as shown in FIGS. 9 and 11, the distance from the bottom surface of the first slot to the other surface becomes longer as it goes from the center portion of the one surface 120a to the edge. It is shown. That is, the distance from the bottom surface of the first slot 122 to the other surface 120b is longer than the distance from the bottom surface of the first slot 121 to the other surface 120b and the other surface (from the bottom surface of the first slot 122). The distance from the bottom of the first slot 123 to the other surface 120b is longer than the distance to 120b). As such, the distance from the bottom to the other surface 120b may be longer as the first slot formed at the edge side. However, the present invention is not limited thereto.

For example, as shown in FIG. 12 showing a casting back mold plate 120 according to another embodiment of the present invention, the first slot 121, the first slot 122 and the first slot 122 ' ), The distance from the bottom surface of the slot to the other surface 120b is the same, and the distance from the bottom surface of the first slot 123 to the other surface 120b may be longer than this distance. Of course, unlike shown in Figure 12, between the first slot 123 and the first slot 124, the distance from the bottom surface to the other surface 120b may be further provided with the same slot as the case of the first slot 123 have. That is, the distance from the bottom of the first slot 121 located at the center of the one surface 120a of the rear mold plate 120 to the other surface 120b is different from the bottom of the first slot 124 located at the edge of the other surface 120b. Shorter than the distance to). In particular, when manufacturing a slab with a thin thickness but a wide slab, such as slabs, the distance from the bottom of the first slots located in the center portion to the other surface (120b) is constant, but in the case of the first slots located at the edge from the bottom to the other surface (120b) It may be considered that the distance of is greater than the distance from the bottom of the first slots located in the center to the other surface (120b).

Of course, as shown in FIG. 13, which is a cross-sectional view schematically showing the rear mold frame 120 according to another exemplary embodiment of the present invention, the distance from the bottom surface of the first slot 121 to the other surface 120b is determined. Various modifications are possible, such as being shorter than the distance from the bottom surface of the one slot 122 to the other surface 120b. In any case, the distance from the bottom of the first slot 124 positioned at the edge to the other surface 120b is the other surface 120b at the bottom of one slot of the first slots 121, 122, 122 ′ positioned at the center. Longer distance is enough. The same is true in the following embodiments and modifications.

In the above back mold plates according to the above embodiments, the distance between the centers of the adjacent first slots may be constant. That is, such a rear surface is made to have a distance from the bottom surface to the other surface of the first slot at the edge longer than the distance from the bottom surface to the other surface of the first slot in the center while the distance between the centers of the adjacent first slots is constant. It is possible to make the molten metal in the mold receive a uniform cooling effect on the entire inner surface of the mold having the mold plate. Of course, the separation distance of the first slots at the center portion may be smaller than the separation distance of the first slots at both ends, so that the molten metal in the mold may have a uniform cooling effect on the entire inner surface of the mold having such a rear mold plate.

14 is a front view schematically showing the casting mold back 120 according to another embodiment of the present invention. The casting back mold plate 120 according to the present embodiment differs from the casting back mold plates according to the above-described embodiment with reference to FIGS. 12 and 13 to further include a second slot. In FIG. 14, two second slots 127 and 128 are further provided, but the number of second slots may be one, or may be plural. Such second slots intersect with the first slots 121, 122, 122 ′, 123, 123 ′, 124, 124 ′, and thus, the first slots 121, 122, 122 ′, 123, 123 ′, 124. , 124 ') may be formed on one surface 120a.

The first slots 121, 122, 122 ′, 123, 123 ′, 124, and 124 ′ of the back mold plate 120 and the second slots 127 and 128 are formed on the back mold plate 120 of the front mold plate. The first channels and the second channels are formed along with the flat surface in the) direction. Of course, the inlet and outlet of the cooling medium may be formed on the opposite side of the rear mold plate. When the rear mold plate 120 according to the present embodiment is coupled with the front mold plate on which the slots are not formed, the first slots 121, 122, 122 ′, 123, of the rear mold plate 120 are formed. 123 ', 124, 124' and the second slots 127, 128 form the first channels and the second channels together with a flat surface in the direction of the back mold plate of the front mold plate, thus forming the back mold plate. Cooling medium that enters through the inlet which may be formed at 120 is introduced into the first channels through the second channel to cool the front mold plate, and then is formed on the rear mold plate 120 through the second channel. Can be discharged through an outlet. Even in the case of the back mold plate according to the present embodiment, the distance from the bottom surface to the other surface of the first slot 124 located at the edge is one slot among the first slots 121, 122, 122 ′ positioned at the center. By making the distance from the bottom to the other side of the longer, it is possible to produce a high quality cast when manufacturing the cast through the mold using the same.

On the other hand, the front mold plate may be damaged in the process of contact with the molten metal may require periodic replacement. In the case of the back mold plate according to the present embodiment, since the first slots and the second slots are formed in the back mold plate, a slot or the like does not need to be formed on the surface of the front mold plate in the direction of the back mold plate. Therefore, when using the back mold plate 120 according to the present embodiment, it is possible to reduce the manufacturing of the front mold plate to be replaced periodically with consumables.

According to another embodiment of the present invention, it is possible to implement a mold plate assembly for casting. The casting mold plate assembly may be a form in which the front mold plate and the rear mold plate are combined, for example, any one of the components indicated by reference numerals 131, 132, 133, and 134 in FIG. 4. Such a mold plate assembly for casting according to this embodiment may be provided with any one of the back mold plates according to the above-described embodiments and modifications thereof. That is, a plurality of first slots arranged in parallel are formed on a surface of the rear mold plate in the front mold plate direction, and a distance from the bottom surface of the first slot positioned at the edge to the other surface is among the first slots located at the center portion. The distance from the bottom surface of one slot to the other surface may be longer. In this case, when using the mold 100 of the shape as shown in Figure 4 formed by using a plurality of such mold plate assemblies, a solidification shell of a constant thickness without cracks, etc. in the casting process is formed, resulting in high quality Cast steels can be produced in high yields. Here, the other surface of the front mold plate facing the surface in the direction of the rear mold plate may be a surface in contact with the molten metal, and the cooling medium inlet and the outlet may be formed on the other surface of the front mold plate facing the surface of the front mold plate.

Of course, even in this case, the first slots formed on the edge of the casting mold plate assembly may have a longer distance from the bottom surface of the first slot to the other surface, and more specifically, from the center to the edge of the casting mold plate assembly. The distance from the bottom of the first slot to the other surface may be increased. Of course, in a form similar to that shown in FIG. 12, the first slots may be formed such that the distance from the bottom to the other surface of the first slot is constant at the center part. By shortening the distance from the bottom of the first slot at the edge to the other surface, the above effects can be obtained.

In the mold mold assemblies for casting according to the embodiments described above so far, the distance between the centers of the adjacent first slots may be constant. That is, such a mold is formed such that the distance from the bottom to the other surface of the first slot at the center is shorter than the distance from the bottom to the other surface of the first slot at the edge while the distance between the centers of the adjacent first slots is constant. It is possible to ensure that the molten metal in the mold receives a uniform cooling effect over the entire inner surface of the mold having the plate assemblies. Of course, the separation distance of the first slots at the center portion may be smaller than the separation distance of the first slots at both ends, so that the molten metal in the mold may have a uniform cooling effect on the entire inner surface of the mold having such a rear mold plate.

On the other hand, in such a mold plate assembly, of course, the second slot intersecting the first slots may be further formed on the surface in the front mold plate direction of the rear mold plate. The front mold plate of the mold plate assembly may be consumable and may need to be periodically replaced. In order to reduce the manufacturing cost of the front mold plate, slots are not formed in the front mold plate. Of course, all of them may be formed on the surface of the rear mold plate in the direction of the front mold plate.

15 is a perspective view schematically illustrating a mold plate 110 according to another embodiment of the present invention, and FIG. 16 is a cross-sectional view taken along line II-II 'of the mold plate 110 of FIG. 15. 17 is a cross-sectional view taken along line III-III 'of the mold plate 110 of FIG.

15 to 17, the mold plate 110 may include one surface 110a and the other surface 110b opposite thereto. For example, the mold plate 110 may constitute a part of a mold for a casting apparatus for forming a solid cast from the molten metal. The casting apparatus may include a continuous casting apparatus for continuously forming cast pieces from the melt. For example, the melt may be moved in the ± z axis direction, in which case the casting direction may be in the ± z axis direction. For example, the other surface 110b may be a surface in contact with the molten metal, and one surface 110a may be an opposite surface opposite thereto.

The other surface 110b may include a recess 110b1 in a central portion of the upper surface 110b. The recess 110b1 may refer to a portion recessed concave in one direction 110a, that is, in the x-axis direction. The elliptical cross-sectional shape of the recess 110b1 is illustrated by way of example and may be modified in various shapes. For example, the cross section of the recess 110b1 may have a shape of a circle, a polygon, or the like, and may further include at least one inflection portion.

The recess 110b1 may serve to widen the width of the injection portion of the molten metal for casting. This shape can be useful for reducing casting time by widening the injection portion of the melt when forming a thin cast. For example, the recess 110b1 may be formed by a predetermined depth along the casting direction from the top of the other surface 110b. As a result, the depth of the recess 110b1 in the x-axis direction may become shallower along the casting direction.

On the other hand, since the recess 110b1 does not limit the shape of the slab, the lower portion of the other surface 110b, that is, the portion below the recess 110b1 may have an appropriate shape to define the shape of the slab. For example, when the slab has a slab shape, the planar portion 110b2 may be disposed below the concave portion 110b1 to define the shape of one surface of the slab. Furthermore, the planar portion 110b2 may extend from both sides of the recess 110b1 at the top of the other surface 110b to surround the recess 110b1.

The plurality of first slots 111 may be provided on one surface 110a to extend along the casting direction (z-axis direction). For example, the stretching direction of the first slots 111 may be substantially parallel to the casting direction (z-axis direction). The first slots 111 may be part of a cooling medium, for example, a cooling channel through which cooling water flows, and may be used to initially or primaryly cool the melt on the other surface 110b. The first slots 111 may not be exposed from the other surface 110b so as not to directly contact the molten metal. In order to increase the cooling efficiency, the mold plate 110 may be made of a material having a high thermal conductivity, such as copper or copper alloy.

The number of first slots 111 is shown by way of example and does not limit the scope of this embodiment. For example, the first slots 111 may be arranged in parallel along the casting direction (z-axis direction) of the cast steel. The first slots 111 may be arranged in a symmetrical structure with respect to a casting line or a casting direction (z-axis line) for uniformity of cooling. However, in a modified example of this embodiment, the structure and arrangement of the first slots 111 may be asymmetrically modified to adjust the cooling distribution.

The first slots 111 may be recessed from a surface 110a in the direction of the other surface 110b (-x-axis direction) by a predetermined depth or may be formed to be pi. The cooling medium flows from the lower ends of the first slots 111 and flows along the first slots 111, that is, in a direction opposite to the casting direction of the molten metal, and then flows out to the upper ends of the first slots 111. Can be. As shown in FIG. 17, the distance from the bottom surface of the first slots 111 to the other surface 110b may be constant. In this case, as the cooling medium gradually warms up as it passes through the first slots 111, the cooling rate may gradually increase along the casting direction (z-axis).

In a modified example of this embodiment, the distance from the bottom surface of the first slots 111 to the other surface 110b may be appropriately modified to further adjust the cooling rate along the casting direction of the melt. For example, in order to further increase the cooling rate along the casting direction (z-axis), the distance from the bottom surface of the first slots 111 to the other surface 110b becomes smaller from the top of the other surface 110b toward the bottom. Can be.

Meanwhile, as shown in FIG. 16, the thickness T _c from the bottom surface of the first slot 111 disposed at the center portion of the one surface 110a to the other surface 110b is greater than zero, and the thickness of one surface 110a is increased. may be less than the thickness (T _e) of the other surface from the bottom surface of the first slot of the first (111) disposed at both end portions to (110b). Optionally, the thickness from the bottom surface of the first slots 111 to the other surface 110b may gradually increase from the center portion of the one surface 110a to both ends thereof. Furthermore, the thickness distribution from the bottom surface of the first slots 111 to the other surface 110b may be symmetrical with respect to the casting line of the molten metal.

This structure can be achieved by adjusting the depth of the first slots 111 and / or the depth of the recess 110b1. For example, when the depth of the concave portion 110b1 is largest in the center portion of the other surface 110b, the depth of the first slots 111 is constant or gradually or gradually increases from the center portion of the one surface 110a to both ends thereof. Can be increased. Furthermore, the depth distribution of the first slots 111 may be symmetrical with respect to the center of the casting line or one surface 110a of the molten metal for cooling symmetry.

This structure of the first slots 111 may be used to adjust the cooling rate distribution of the mold plate 110. That is, the cooling rate in the central portion is smaller than the distance (T _e) at the distance (T _c), both end portions in the central portion of the cooling medium and the melt distance unitary structure molded plate 110 of between than the cooling rate at both ends It becomes big. According to this structure, the cooling rate of the molten metal at both ends of the mold plate 110 can be adjusted to be lower than the cooling rate at the central portion thereof.

18 is a perspective view schematically showing a mold plate 110 according to another embodiment of the present invention, and FIG. 19 is a cross-sectional view taken along the line V-V 'of the mold plate 110 of FIG. The mold plate 110 according to the present embodiment adds some components to the mold plate 110 of FIGS. 15 to 17 described above, and thus, duplicated descriptions of the mold plates 110 will be omitted.

18 and 19, a cover member 117 may be provided on the first slots 111 to define a cooling channel. For example, the cover member 117 may be spaced apart from the bottom surfaces of the first slots 111 to define a cooling channel along the casting direction. The cover member 117 may be disposed to expose the lower end and the upper end of the first slots 111. The lower end of the lid member 117 may be an inlet of the cooling medium, and the upper end of the lid member 117 may be an outlet of the cooling medium. Accordingly, the cooling medium, such as cooling water, may be supplied to the inlet and flow along the first slots 111 and then discharged to the outlet.

The thickness from one surface 110a of the cover member 117 to the other surface 110b may be adjusted to adjust the width of the cooling channel. For example, in order to make the width of the cooling channel constant, the inner wall of the cover member 117 inside the first slots 111 may be parallel to the bottom surfaces of the first slots 111. For example, the outer wall opposite to the inner wall of the cover member 117 is aligned with the one surface 110a, and the thickness of the cover member 117 in the direction from the one surface 110a to the other surface 110b is the first slots 111. From the bottom to the top of the) may become smaller or gradually smaller.

20 is a cross-sectional view schematically showing a mold plate 110 according to another embodiment of the present invention. The mold plate 110 according to this embodiment adds some components to the mold plate 110 of FIGS. 15 to 17 described above, and thus, duplicate descriptions of the mold plates 110 will be omitted.

Referring to FIG. 20, the distance between the first slots 111b may be adjusted to adjust the density distribution of the first slots 111b. For example, the widths of the first slots 111b are constant, and the separation distance S _c of the first slots 111b at the center of the one surface 110a is the first slot at both ends of the one surface 110a. It may be smaller than the separation distance (S _e ) of the (111b). Further, the separation distance of the first slots 111b may be gradually or stepwise increased from the center of the one surface 110a to both ends thereof.

Accordingly, the cooling rate of the molten metal is increased in the central portion of the one surface 110a having a high density of the first slots 111b, and the cooling rate of the molten metal is formed at both ends of the one surface 110a of the small density of the first slots 111b. Can be made smaller. Therefore, by adjusting the density of the first slots (111b), it is possible to adjust so that the cooling rate of the mold plate 110 of a single structure is smaller at its ends than the center portion.

FIG. 21 is a perspective view schematically showing a mold plate assembly 131 according to an embodiment of the present invention, and FIG. 22 schematically shows a second mold plate 120 of the assembly 131 of the mold plate of FIG. 21. 23 is a cross-sectional view taken along line IX-IX 'of the mold plate assembly 131 of FIG. 21, and FIG. 24 is a cross-sectional view taken along line X-X' of the mold plate assembly 131 of FIG. 21. to be.

Referring to FIGS. 21 and 22, the mold plate assembly 131 may include a mold plate 110 and a mold plate 120. The mold plate 110 may refer to the mold plate 110 of FIGS. 15 to 17. The mold plate 120 may be coupled to the mold plate 110 to supply or drain the cooling medium to the mold plate 110.

Referring to FIGS. 23 and 24, the mold plate 120 may include one surface 120a and the other surface 120b. One surface 120a may be coupled to face one surface 110a of the first mold plate 110, and the other surface 120b may be disposed at an opposite side thereof. The mold plate 120 may be referred to as a water jacket in that it supplies a cooling medium, such as cooling water, to the mold plate 110.

The mold plate 120 may be made of a material having high thermal conductivity, such as copper or copper alloy. Mold plate 110 and mold plate 120 may be tightly coupled by suitable fastening means, such as a high tension bolt structure (not shown).

At least one inlet 129a and at least one outlet 129b may be provided to penetrate through the mold plate 120 from the other surface 120b and to be connected to the first slot 111 of the mold plate 110. For example, the inlet 129a may be disposed on the lower end of the mold plate 120 to be connected to the lower end of the first slot 111. The outlet 129b may be disposed on the upper end of the mold plate 120 to be connected to the upper end of the first slot 111. The number and arrangement of inlets 129a and outlets 129b are shown by way of example and may be modified as appropriate.

At least one second slot 128 may be disposed in the mold plate 120 to be connected to the inlet 129a. The second slot 128 may be commonly connected to lower ends of the first slots 111. For example, the second slot 128 may be recessed in the direction from the one surface 120a to the other surface 120b and extend to cross the first slots 111. For example, the second slot 128 may be disposed to be perpendicular to the first slots 111 and the casting direction.

The second slot 128 may be disposed therebetween to connect the inlets 129a and the ends of the first slots 111 in common. Accordingly, the cooling medium introduced into the inlet 129a may be branched in the second slot 128 and uniformly introduced into the first slots 111. The number of second slots 128 is shown by way of example and does not limit the scope of this embodiment. For example, the number of second slots 128 may be adjusted according to the number of inlets 129a.

At least one other second slot 127 may be disposed in the mold plate 120 to be connected to the outlet 129b. The second slot 127 may be commonly connected to the upper ends of the first slot 111. For example, the second slot 127 may be recessed in the direction of the other surface 120b from one surface 120a and extend to cross the first slots 111. For example, the second slot 127 may be disposed to be orthogonal to the first slots 111 and the casting direction.

The second slot 127 may be disposed therebetween to connect the outlet 129b and the upper ends of the first slots 111 in common. Accordingly, the cooling medium from the upper ends of the first slots 111 may be collected in the second slot 127 and discharged to the outlet 129b. The number of second slots 127 is shown by way of example and does not limit the scope of this embodiment. For example, the number of second slots 127 may be adjusted according to the number of outlets 129b.

By the coupling structure of the mold plate 110 and the mold plate 120, a cooling channel representing a movement path of the cooling medium may be defined. For example, the cooling channel may refer to part or all of the path from the inlet 129a to the outlet 129b via the second slot 128, the first slot 111, and the second slot 127. .

The first slots 111 have a structure exposed to one surface 110a when viewed solely from the mold plate 110, but except for a portion overlapping the second slot 128 and the second slot 127. One surface 120a of the 120 may be tightly coupled and sealed.

In a modified example of this embodiment, the mold plate 110 may be replaced with the mold plate 110 of FIGS. 18 and 19 or the mold plate 110 of FIG. 20.

In another embodiment of the present invention, the mold plates 110 and 120 may be integrally provided in the mold plate assembly 131 of FIGS. 21 to 24 described above. In this case, the mold plate assembly 131 may be simply referred to as a mold plate.

25 is a perspective view schematically showing a mold 100 according to an embodiment of the present invention, and FIG. 26 is a schematic plan view schematically showing the mold 100 of FIG. 25.

Referring to FIG. 25, the mold 100 may include a plurality of mold plate assemblies 131, 132, 133, and 134. At least one of the mold plate assemblies 131, 132, 133, 134 may refer to the mold plate assembly described above. For example, the mold plate assemblies 131 and 132 may include the structure of FIGS. 22 to 24 and a modified structure thereof.

The moldplate assemblies 131, 132, 133, 134 may be combined into a suitable shape to define the slab shape. For example, the four mold plate assemblies 131, 132, 133, 134 may be joined using a suitable fastening means such as a bolt structure in a quadrangular shape for producing slab shaped slabs. The mold plate assemblies 131 and 132 may form light side surfaces of the mold 100, and the mold plate assemblies 133 and 134 may form short side surfaces of the mold 100. In this case, the widths of the manufactured slabs may be changed by moving the mold plate assemblies 133 and 134 in the ± y-axis direction.

The recesses (110b1 in FIG. 1) of the mold plate assemblies 131 and 132 of the light side surfaces may define a funnel shape. In the flake-shaped cast casting, the lengths of the mold plate assemblies 133 and 134 on the short sides are shortened, thus making molten metal injection difficult. However, the funnel shape described above may increase the width of the molten metal injection portion while maintaining the width of the molten metal outlet portion to increase the casting speed and efficiency.

The shape of the above-described mold 100 is shown by way of example, it may be appropriately modified according to the shape of the cast steel.

Referring to FIG. 26, the four corner regions C are subjected to overlapping cooling from two intersecting ones of the moldplate assemblies 131, 132, 133, and 134, thereby effecting cooling from a single moldplate assembly. There is a risk of cooling faster than other parts received. However, as described above, since the cooling temperature at the individual ends of the moldplate assemblies 131, 132, 133, 134 is lower than the cooling temperature at the center, in the four corner regions C in the mold 100. The cooling rate of the cast steel can be adjusted to approximately the same as the cooling speed of the cast steel in other parts. Therefore, when the mold 100 is used, the initial cooling rate of the cast steel can be made uniform throughout the cast steel.

According to another embodiment of the present invention, it is possible to provide a casting mold including a plurality of mold plate assemblies coupled to define a slab shape. The casting mold may include at least one of the mold plate assemblies according to the above-described embodiments. Of course, the casting mold may include at least one of the casting mold plates according to the above-described embodiments. This casting mold may be in the form, for example, as shown in FIG.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary and will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the present invention, the mold mold for casting, the mold mold assembly for casting, and the casting mold having the same, a mold mold for casting, a mold mold assembly for casting and a casting mold having the same can be manufactured in high yield with high yield. The mold can be implemented.

Claims (17)

A first slot having a plurality of first slots arranged in parallel, the distance from the bottom of the first slot in the center to the other surface opposite to the one surface is the distance from the bottom of the first slot to the other surface at the edge; Shorter mold plates for casting. The method of claim 1, Molding plate for casting, the longer the first slot formed on the edge side of the one side from the bottom surface to the other surface. The method of claim 2, The mold plate for casting, the distance from the bottom surface of the first slot to the other surface is longer as the edge from the central portion of the one surface. The method of claim 1, A mold plate for casting, further comprising a second slot intersecting the first slots on the one surface. The method of claim 1, The other surface is a molten contact surface, the mold plate for casting. The method of claim 5, The mold plate for casting having a concave portion on the upper side of the other surface, the first slots of the one side extending from the upper direction to the lower direction. The method of claim 6, The other surface of the mold plate for casting further comprises a flat portion below the recess. The method of claim 7, wherein The depth of the said recessed part in the said surface direction becomes shallow gradually from the upper part to the lower part, The casting mold plate. The method of claim 7, wherein And a lid member arranged to space portions of the first slots apart from bottom surfaces of the first slots to define a cooling channel along a top to bottom direction. The method of claim 9, An inner wall of the lid member inside the first slots is parallel to the bottom surfaces of the first slots. The method of claim 1, Mold plate for casting, the cooling medium inlet and outlet is formed on the other surface. The method according to any one of claims 1 to 11, The separation distance of the first slots in the central portion of the one surface is less than the separation distance of the first slots at both ends of the one surface, the mold plate for casting. The method according to any one of claims 1 to 11, The mold plate for casting, wherein the distance between the centers of mutually adjacent first slots is constant. The front mold plate of claim 1 to claim 10 mold casting plate and And a back mold plate in contact with the one side of the front mold plate. The method of claim 8, The mold plate assembly of claim 1, wherein a cooling medium inlet and an outlet are formed on a surface of the rear mold plate facing the surface of the front mold plate. Front mold plate and The casting mold plate assembly according to any one of claims 1 to 4 and 11, comprising a rear mold plate on one side of which is in contact with the front mold plate. A plurality of moldplate assemblies coupled to define the slab shape, At least one of the moldplate assemblies comprises a casting mold plate according to any one of claims 1 to 11.

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