JP2000117319A - Manufacturing method of clad material - Google Patents

Abstract

(57) [Problem] To manufacture a clad material by peeling and separating a part of a metal layer such as a sacrificial metal plate from a rolled laminate, the peeling process can be efficiently performed in a limited space. Provide a way to do well. SOLUTION: From a rolled laminated body 12, a sacrificial metal plate 3 'is formed.
Is wound up by the collection reel 34 to be separated and collected from the clad material 13. Compared to the conventional method in which the sacrificial metal plate 3 ′ is repeatedly pulled up / peeled off and cut by a crane or the like, the sacrificial metal plate 3 ′ can be peeled and collected very efficiently. Also, no extra space is required in the factory for raising the sacrificial metal plate 3 '.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a clad material, and more particularly to a method for manufacturing a so-called rolled clad by laminating and rolling metal sheet materials to obtain a clad material by pressing and integrating them.

[0002]

2. Description of the Related Art In a method of hot-rolling a laminate of a metal sheet material to obtain a rolled clad, when oxidation of a press-bonded surface becomes a problem, the entire laminate is enclosed in a sheath made of a sacrificial metal plate such as a steel plate. By performing rolling, such corrosion and oxidation are prevented. In this case, a step of removing the sacrificial metal plate after rolling is required.

[0003]

In the above-mentioned method for producing a rolled clad, conventionally, after the end of rolling, the tip of a sacrificial metal plate is chucked by a gripping metal, pulled up to a certain length by a crane or the like, and cut. The process was repeated to separate and remove the sacrificial metal plate. However, this method is extremely troublesome and inefficient, and requires extra space in the factory to raise the sacrificial metal plate.
There are many problems.

SUMMARY OF THE INVENTION An object of the present invention is to provide a clad material by peeling and separating a part of a metal layer such as a sacrificial metal plate from a rolled laminate to efficiently perform the peeling step in a limited space. It is to provide a method for performing well.

[0005]

Means for Solving the Problems and Functions / Effects In order to solve the above-mentioned problems, a method of manufacturing a clad material according to the present invention comprises the steps of: Is a surface to be peeled, and in at least one of a set of metal plate materials separated by the surface to be peeled, a clad-to-be-cladded plate material set including a plurality of metal plate materials scheduled to be clad is formed. like,
A laminating step of laminating a plurality of metal plate materials to form a rolled laminate, and rolling the rolled laminate between rolling rolls so that each metal plate material is pressed down in the laminating direction. A rolling process in which each of the metal plate materials included in the clad-to-be-cladded plate material set is pressed and integrated with each other while reducing the thickness thereof to form a clad material layer; , At least one of the plurality of peeling unit metal layers including the cladding material layer formed corresponding to each of the sets of metal plate materials, as one of the metal layers to be recovered, and one end of the metal layer to be recovered. Is fixed to the corresponding collection reel, and the collection reel is rotated in this state, thereby separating the collection target metal layer from the remaining separation unit metal layer on the corresponding separation planned surface by the collection reel. And peeling and recovery process to come up recovery,
It is characterized by including.

According to the above method, the metal layer to be recovered (for example, a sacrificial metal plate) is taken up from the rolled laminate by the recovery reel, and is separated and recovered from the remaining metal unit layer. As compared with the conventional method in which pulling / cutting is repeated by a crane or the like, the metal layer to be recovered can be peeled and recovered extremely efficiently. Also, no extra space is required in the factory for raising the metal layer to be recovered.

[0007] In the above method, a plurality of metal layers to be recovered can be simultaneously wound and recovered from one rolled laminate using a plurality of recovery reels. On the other hand, the remaining 2 peeled off a part of the peeling unit metal layer from the rolled laminate.
By repeating the process of peeling and collecting the remaining laminate composed of the above-described peeling unit metal layer as necessary as a laminate to be processed, and winding and collecting the metal layer to be recovered from the laminate to be processed by a recovery reel. Alternatively, each peeling unit metal layer can be individually wound and collected. In the latter method, even when only a limited number (for example, one) of recovery reels can be used, the peeling unit metal layer can be sequentially wound up and recovered by a sequential method.

In the method for producing a clad material according to the present invention, the rolled laminate or the remaining two or more peeled unit metal layers remaining after peeling a part of the peeled unit metal layer from the rolled laminate is removed. The laminate is treated as a laminate to be processed, and is wound and held on a supply reel to form a laminate coil to be processed. While the laminate to be processed is pulled out from the laminate coil to be processed, the metal layer to be recovered and the residual metal layer are removed. The separation unit metal layer can be collected by separate collection reels while being separated. For example, in the method for producing a clad material according to the present invention, the metal layer to be recovered can be recovered immediately by the recovery reel disposed downstream of the rolling device after the rolling is completed. However, if this is not possible due to equipment problems, etc., the rolled laminated body is once wound up to form a processed laminated coil, and the rolled laminated body is again formed from the processed laminated coil by the above method. It is possible to flexibly cope with, for example, taking out and collecting the metal layer while peeling it while pulling it out.

Also, as described above, when the residual laminate is to be processed and the metal layer to be recovered is sequentially peeled and recovered from the laminate to be processed, the residual laminate is temporarily wound up as a coil. If this is used as the coil to be processed in the next peeling step, the separation, winding and recovery of the individual peeling unit metal layers can be efficiently performed. In this case, after the two or more peeled unit metal layers in a laminated state are collected in a coil state by winding them on the same collecting reel, the coil is re-formed as a laminated coil to be processed, and the coil is formed from the laminated coil. What is necessary is just to make it collect | recover by each collection | recovery reel, respectively, peeling a collection | recovery metal layer and the remaining peeling unit metal layer.

In the case where the rolling step is a hot rolling step, the rolled laminated body is configured such that at least one side of the laminating direction in the laminating direction, the metal sheet material disposed on the outermost layer is moved to the inner layer side in the rolling step. It can be a sacrificial metal plate for protecting the clad plate material set to be arranged. In this case, the rolled sacrificial metal plate is peeled and recovered from the remaining peeling unit metal layer including the clad material layer as the metal layer to be recovered. That is, by applying the present invention, it is possible to efficiently peel and collect the sacrificial metal plate. Specific examples corresponding to this are as follows. That is, the rolled laminate is made of a Fe-based metal core plate mainly composed of Fe, a Ti-based metal plate made of Ti or a Ti alloy laminated on both sides in the thickness direction, and a further two-sided metal plate. Hot rolled, including a Fe-based sacrificial metal plate mainly composed of Fe to be laminated, and a Fe-based metal core plate and a set of Ti-based metal plates laminated on both sides thereof as a clad-plated plate material set Thereby, a clad material in which a Ti-based metal layer is laminated and integrated on both surfaces of the Fe-based core material layer is obtained.
By using a sacrificial metal plate, a pressure contact surface (for example, T
Oxidation and the like of the pressure-bonded surface between the i-based metal layer and the Fe-based metal core material) are effectively prevented.
The separation and recovery of the sacrificial metal plate can be performed efficiently.

[0011] A separating agent layer mainly composed of an inorganic material powder can be interposed on the surface of the rolled laminate to be peeled. Thus, the peeling unit metal layer can be smoothly peeled on the surface to be peeled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of a manufacturing process of a clad material according to the present invention will be described with reference to the accompanying drawings. Here, a method of manufacturing a clad material in which a Ti-based metal layer is laminated and integrated on both surfaces of an Fe-based core material layer is taken as an example.

First, as shown in FIG. 1, as a metal plate material, an Fe-based metal core plate 1, a Ti-based metal plate 2, 2, and a sacrificial metal plate 3, 3 are prepared and laminated as shown in the figure. Further, side sacrificial metal plates 4 and 4 that cover both side surfaces in the width direction, and end face sacrificial metal plates that cover the front and rear end surfaces (not shown) are arranged, and the butted edges of each sacrificial metal plate are welded by a welded portion W. The rolled laminate 10 is formed by joining and sealing. Each sacrificial metal plate is made of a metal mainly composed of Fe, such as mild steel. Stacked Fe
Based metal core plate 1, Ti based metal plates 2, 2, sacrificial metal plate 3,
3 forms a clad-to-be-plated plate material set 11 which is pressure-bonded and integrated by rolling to be described later to form a clad material. The thickness of the Fe-based metal core plate 1 is about 30 to 60 mm (for example, 50 m
m), the thickness of each of the Ti-based metal plates 2 and 2 is 1 to 10 m.
m (for example, 2 mm), and the total thickness of the clad plate material set 11 is about 30 to 70 mm (for example, 55 mm).
It is. The thickness of the sacrificial metal plates 3, 3 is 10 to 50 m.
m (for example, 30 mm).

The surface between the sacrificial metal plates 3 and 3 and the Ti-based metal plates 2 and 2 is a surface to be separated, and a separating agent layer 20 mainly composed of an inorganic material powder (for example, talc, alumina, chromite powder, etc.) is provided. It is interposed. This can be formed, for example, by dispersing the above-mentioned inorganic material powder in a solvent together with a suitable binder onto the Ti-based metal plates 2 and 2 or the sacrificial metal plates 3 and 3. In the present invention,
When the metal plate adjacent on the surface to be peeled is formed of a combination of materials that are difficult to join during hot rolling, the separating agent layer 20 may be omitted in some cases.

The laminate 10 to be rolled is heated to an appropriate temperature (for example, 800 to 1100 ° C.) using a heating furnace, and is subjected to hot rolling by rolling rolls 30, 30 as shown in FIG. Thus, a rolled laminate 12 is obtained. At this time, the thicknesses of the sacrificial metal plates 3 and 3 and the clad plate material set 11 are each reduced, and the Fe-based metal core plate 1 and the Ti-based metal plates 2 and 2 included in the clad plate material set 11 are included. 2 are pressed and integrated with each other while accompanied by thermal diffusion, and as shown in FIG.
Clad material 13 in which base metal layers 15 and 15 are laminated and integrated
(Note that the sacrificial metal plate after rolling is denoted by 3 ′, 3 ′ below). This clad material 13
Is used, for example, as a blade material of an electric shaver.

In the above hot rolling, the rolling reduction per pass is 1
It is about 5 to 30% and is repeated an appropriate number of times until a clad material 13 having a required thickness is obtained (or multi-stage rolling in which a plurality of pairs of rolling rolls are sequentially passed may be used). In addition, the thickness of the Fe-based core layer 14 after the rolling is 1
About 2 mm (for example, 1.5 mm), Ti-based metal layer 1
The thickness of each of the cladding members 13 is about 0.1 to 0.5 mm (for example, 0.2 mm).
It is about 3 mm (for example, 2 mm). The thickness of the sacrificial metal plates 3 ', 3' is about 1 to 2 mm (for example, 1 mm).
It is. Further, the width of the clad material 13 is 200 to 300.
mm.

After the rolled laminate 12 is cooled, it is wound into a coil as shown in FIG. 3, and then the periphery thereof is cut with a cutter so that the upper and lower sacrificial metal plates 3 ', 3' can be peeled off. The laminate 1 to be processed by cutting / removing at 31, 31, etc.
2 ′ (FIG. 4). This laminate to be processed 12 'is the same as that shown in FIG.
As shown in (1), it is wound on a reel 33 to form a laminated coil 25 to be processed. Here, the clad material 13 and the two sacrificial metal plates 3 ′, 3 ′ laminated on both sides thereof via the surfaces to be peeled (separating agent layer 20) (FIG. 5) are respectively formed as the peeling unit metal layer. Become.

The sacrificial metal plates 3 ', 3' are peeled off and removed from the coil 25 to be processed using the peeling device 40 shown in FIG. 5 (c). The peeling device 40 includes, for example, three (or may be three or more) reel stands arranged in the feeding direction of the processing target laminated body 12 ′, and FIG.
, One is a supply-side stand 41 and the other two are collection-side stands 42 and 43. Each of the stands 41 to 43 is a reel 3 for winding a plate material.
3, 34, 35 are set, and motors 44, 45, 46
Thus, they are respectively driven to rotate in both forward and reverse directions.

The peeling device 40 used in this embodiment
Is a rolling machine originally, as shown in FIG.
Rolling rolls 36, 36 between the collection side stands 42, 43
Is arranged. Further, guide rolls 37, 37 are provided on both sides of the rolling rolls 36, 36. For example, a coil 7 in which a rolled plate material 70 is slightly loosely wound
1 is set on the stand 41, and the reel 35 set on the opposite stand 43 winds this more strongly than the coil 71 to form the supply coil 72 (at this time, the rolling rolls 36, 36 are set as the retracted positions). deep). Next, as shown in FIG. 2B, while the rolled plate material 70 is being unwound from the supply coil 72, the rolling rolls 36, 3
6 and the rolled material 70 ′ is rolled on the reel 33.
Take up with.

Such rolling equipment is used as a peeling device 40 shown in FIG. 5C by the following method. That is, while the rolling rolls 36 and 36 are in the retracted state, the reel 3 on which the processed laminate coil 25 is wound
3 is set on the supply side stand 41. As shown in FIG. 5A, the leading end of the sacrificial metal plate 3 ′ to be peeled is turned up using a tool 75 such as a screwdriver or a chisel on the leading end side of the stacked body 12 ′ to be processed. The laminate to be processed 12 ′ is pulled out from the coil 25, and the tip of the turned up sacrificial metal plate 3 ′ is fixed to the recovery reel 34. For example, as shown in FIG. 5B, the fixing is performed by inserting the tip of the sacrificial metal plate 3 ′ into a slit 34 a in the width direction provided on the reel 34.

In this state, by rotating the reel 34 in the winding direction, the sacrificial metal plate 3 '
The cladding material 1 as the remaining release unit metal layer
3 "and the remaining laminated body 12" comprising the other sacrificial metal plate 3 '.
And is wound up on a reel 34 as a recovered metal layer. On the other hand, the tip end side of the residual laminated body 12 ″ is fixed to the collection reel 35 of the collection side stand 43, and is wound around the reel 35 by rotating the reel 35 to form the coil 27.

When the sacrificial metal plate 3 'is peeled off, the feed speed (that is, the peeling speed) of the laminate to be processed 12' is adjusted, for example, in the range of about 1 to 30 mm / min. The pressure-bonded state between the sacrificial metal plate 3 ′ and the clad material 13 via the separating agent layer 20 is, for example, a region where the bonding is relatively strong according to the distribution of compressive stress during rolling and the state of formation of the separating agent layer 20. There is a case where unevenness is caused by a mixture of a region where the adhesion is weak and the region which is easily peeled. If the feed rate exceeds 30 mm / min, peeling may be incomplete in the strongly press-bonded region, which may lead to defects such as roughening of the obtained clad material 13 due to gouging of the material. On the other hand, feed speed is 1m
If it is less than m / min, efficiency may be reduced.

The sacrificial metal plate 3 'and the residual laminate 12 "
Since the thickness is different from the above, when the peeling is performed at a constant feed speed, the diameter increasing speeds of the coils 26 and 27 due to the winding are different from each other. Therefore, each coil 2
In order to keep the winding peripheral speeds of the reels 6 and 27 constant in accordance with the feed speed, a motor 4 for driving the reels 34 and 35 is used.
The rotation speed of each of 5 and 46 is controlled by the control unit 47. As the control method, for example, a method in which a coil diameter is measured in real time by a sensor (not shown), and a required motor rotation speed is calculated from the coil diameter and a rotation peripheral speed to be maintained to perform control. Further, when the rotational peripheral speed is fixed, the increasing speed of the coil diameter is obtained from each thickness of the sacrificial metal plate 3 ′ and the residual laminated body 12 ″, and a time change curve of the motor rotational speed calculated based on the obtained speed. May be used to control the motors 45 and 46 according to a program.

As shown in FIG. 7, the remaining laminated body 12 "from which the sacrificial metal plate 3 'on one side has been peeled off is wound around the coil 27 so that the remaining sacrificial metal plate 3' is inside. Then, as shown in FIG. 5C, the coil 27 is mounted on the supply-side stand 41 again as the processing-target laminated coil 27, and as shown in FIG. The remaining sacrificial metal plates 3 'are peeled off while being wound as a metal layer to be collected by the collecting reel 34. As shown in Fig. 5C, the sacrificial metal plates 3, 3 on both sides are peeled off as a result. The clad material 13
It is wound up on a collection reel 35 and collected.

Hereinafter, various modifications of the step of peeling the sacrificial metal plates 3 ', 3' will be described. First, in the example shown in FIG.
66, the three collection reels 61 and 6 driven to rotate by
The one provided with 2, 63 is used. Then, one of the sacrificial metal plates 3 ′ is collected by the collection reel 61, the clad material 13 is collected by the collection reel 62, and the other sacrificial metal plate 3 ′ is further collected by the collection reel 63 to the coils 26, 28, 2.
7, while the three release unit metal layers 3 ',
The separation of the layers 13 and 3 'is performed simultaneously. The control unit 47 controls the rotational speeds of the three motors 64, 65, 66 so that the rotational peripheral speeds of the coils 26, 28, 27 are substantially equal. The rolling equipment is omitted in this example.

FIG. 10 is a modification of FIG. 9, and shows an example in which the clad material 13 is rolled by rolling rolls 36, 36 and then wound up and collected. Here, the recovery reel 63 for winding up the outer sacrificial metal plate 3 ′ is arranged upstream of the supply reel 33, and the peeled sacrificial metal plate 3 ′ is removed.
Is changed by a guide roll 68 and guided to the reel 63.

Note that only one side of the Fe-based core layer 14
When manufacturing a clad material in which the base metal layer 15 is integrated, the following method is possible. That is, as shown in FIG. 11, the Ti-based metal plates 2 and 2
The rolled laminate 10 having the Fe-based metal core plates 1 and 1 disposed further outside thereof is rolled, and then separated at the position of the separating agent layer 20 by rolling. Can be obtained at the same time. In this case, the two clad materials serve as a peeling unit metal layer, and the sacrificial metal plates 3 and 3 in FIG. 1 are omitted.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a manufacturing process of a clad material of the present invention.

FIG. 2 is a process explanatory view following FIG. 1;

FIG. 3 is a process explanatory view following FIG. 2;

FIG. 4 is a process explanatory view following FIG. 3;

FIG. 5 is a process explanatory view following FIG. 4;

FIG. 6 is an explanatory view showing an original method of using the peeling device of FIG. 5;

FIG. 7 is a diagram for explaining a part of FIG. 5 in detail.

FIG. 8 is a process explanatory view following FIG. 5;

FIG. 9 is a schematic view showing a modification of the peeling device.

FIG. 10 is a schematic view showing another modified example.

FIG. 11 is an explanatory view showing an example of a method for manufacturing a clad material without using a sacrificial metal plate.

[Explanation of symbols]

 Reference Signs List 1 Fe-based metal core plate (metal plate material) 2 Ti-based metal plate (metal plate material) 3 Sacrificial metal plate (metal plate material) 3 'Sacrificial metal plate (rolled) 10 Rolled laminate 11 Cladded plate Material set 12 Rolled laminate 13 Clad material 14 Fe-based core layer 15 Ti-based metal layer 20 Separating agent layer 33 Supply reel 34, 35, 61-63 Collection reel

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B32B 15/01 B32B 15/01 C

Claims (7)

[Claims] 1. A separation plane between at least one pair of adjacent metal sheet materials to be laminated, and at least one of a set of metal plate materials separated by the separation surface. In, a laminating step of forming a rolled laminate by laminating the plurality of metal plate materials to form a clad plate material set composed of a plurality of metal plate materials scheduled to be clad, By rolling the laminate to be rolled between the rolling rolls so that each metal plate material is pressed down in the laminating direction, this is a rolled laminate and included in the clad plate material set. Rolling each metal plate material, while reducing its thickness, crimping and integrating with each other to form a clad material layer, formed in the rolled laminate corresponding to each set of each metal plate material, At least one of the plurality of exfoliation unit metal layers including the cladding material layer is a metal layer to be recovered, and one end of the metal layer to be recovered is fixed to a corresponding recovery reel. By rotating, the peeling and collecting step of winding and collecting the metal layer to be recovered by the recovery reel while peeling the metal layer to be recovered from the remaining peeling unit metal layer on the corresponding surface to be peeled. Method of manufacturing clad material. 2. A residual laminate comprising at least two remaining release unit metal layers obtained by removing a part of the release unit metal layer from the rolled laminate, as a laminate to be treated, 2. The method for producing a clad material according to claim 1, wherein the step of peeling and collecting the metal layer to be recovered by winding the metal layer with the recovery reel is repeated as many times as necessary to individually wind and recover each of the peeling unit metal layers. . 3. A process of subjecting the rolled laminated body or a residual laminated body composed of the remaining two or more peeled unit metal layers after removing and removing a part of the peeled unit metal layer from the rolled laminated body. As a laminate, a coil to be processed is formed by winding and holding this on a supply reel, and while the laminate to be processed is pulled out from the coil to be processed, the metal layer to be recovered and the remaining peeling unit metal are removed. 2. A method according to claim 1, wherein the layers are separated from each other and collected by separate collection reels.
Or the method for producing a clad material according to 2. 4. After collecting two or more of the peeling unit metal layers in a laminated state on a same collecting reel to recover them in a coil state, the coils are formed again as the to-be-processed laminated body coils, and the to-be-processed laminated layers are formed. 4. The method for manufacturing a clad material according to claim 3, wherein the metal layer to be recovered and the remaining peeling unit metal layer are peeled off from the body coil and recovered by individual recovery reels. 5. The rolling step is a hot rolling step, and the rolled laminate is such that a metal sheet material disposed on the outermost surface layer on at least one side in the laminating direction is lower than the metal sheet material during the rolling step. Is also a sacrificial metal plate for protecting the clad plate material set disposed on the inner layer side, and the remaining exfoliation including the clad material layer using the sacrificial metal plate after rolling as the metal layer to be recovered. The method for producing a clad material according to any one of claims 1 to 4, wherein the clad material is separated and recovered from the unit metal layer. 6. The rolled laminate includes, as the metal sheet material, an Fe-based metal core sheet mainly composed of Fe, and a Ti-based metal sheet made of Ti or a Ti alloy laminated on both sides in the thickness direction. And a Fe-based sacrificial metal plate mainly composed of Fe laminated on both sides thereof, the Fe-based metal core plate and the Ti laminated on both sides thereof.
6. A clad material in which a Ti-based metal layer is laminated and integrated on both surfaces of an Fe-based core layer by hot rolling using a set of a system-based metal plate as the set of plate material to be clad. A method for producing a clad material according to any one of the above. 7. The method for producing a clad material according to claim 1, wherein a separating agent layer mainly composed of an inorganic material powder is interposed on the surface to be separated in the rolled laminate.