JP2001090655A - Swash plate for swash plate type compressor, and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swash plate for swash plate type compressors, which is inexpensive and excellent in the sliding characteristic, by forming a sliding surface by cladding a member which does not seize on a shoe of iron system, on a part serving as a sliding part of a iron swash plate, and further, provide a method capable of easily manufacturing the swash plate. SOLUTION: A swash plate for swash plate type compressors, is structured to be provided with an iron swash plate body 2, a sliding plate 3 made of Al alloy for forming the sliding surface 3 to be joined to the swash plate body 2. Then, a joining metal is allowed to intervene in the joining part of swash plate body 2 and the sliding plate 3 to join them to each other, and further an inclined diffusion layer in which the joining metals are diffused respectively in the swash plate body 2 and the sliding plate 3, is allowed to be formed in the joining part in which the joining metal intervenes. This method is a manufacturing method for joining the swash plate body 2 to the sliding plate 3 by allowing the joining metal to intervene between the swash plate body 2 and the sliding plate 3 in a molten state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swash plate for a swash plate compressor and a method for manufacturing the same, and more particularly, to a swash plate with improved sliding characteristics and a method for manufacturing the same.

[0002]

2. Description of the Related Art A swash plate compressor reciprocates a piston in a cylinder bore provided in a cylinder block by rotating a swash plate obliquely attached to a rotating shaft to compress and expand a predetermined refrigerant. It is. The connection between the piston and the swash plate is performed via a shoe (slider) provided on the piston, and the swash plate is rotated by sliding the shoe on the outer peripheral portion.

[0003] For example, in a variable displacement compressor or the like, it is necessary to make the swash plate heavy in order to give inertia to the swash plate. In such a case, an iron swash plate is preferably used. However, in general, the shoe is made of an iron-based material such as high carbon chromium bearing steel (SUJ). When the same iron-based swash plate is used, seizure between the shoe and a portion serving as a sliding surface of the swash plate is a problem. Becomes Therefore, conventionally, in order to solve the problem of seizure of the iron swash plate, a sprayed layer of a copper alloy is formed on the sliding surface of the swash plate as disclosed in, for example, PCT International Application Publication No. WO95 / 25224. Various technologies, including technologies, are being studied.

However, the technology described in the above publication uses an expensive copper alloy, and the process of spraying the copper alloy is complicated, so that the manufactured swash plate must be expensive. There was a disadvantage. Further, the adhesion strength of the sprayed copper alloy was also low.

[0005]

SUMMARY OF THE INVENTION The inventor of the present invention has been made to solve the above-mentioned problems of the iron swash plate.
A swash plate compressor that is inexpensive and has excellent sliding characteristics by forming a sliding surface by attaching a member that does not seize to the iron shoe to the sliding part of the iron swash plate. It is an object to provide a swash plate for use, and to provide a method for easily manufacturing the swash plate.

[0006]

A swash plate type compressor swash plate according to the present invention comprises an iron swash plate main body and an Al alloy sliding plate joined to the swash plate main body to form a sliding surface. It is characterized by becoming. In other words, the swash plate of the present invention is a plate made of an Al alloy and adhered to an iron swash plate main body, and a sliding surface is formed by the Al alloy. By bonding an Al alloy which is inexpensive and does not cause seizure with an iron-based shoe, the swash plate for a swash plate compressor of the present invention becomes a swash plate which is inexpensive and has excellent sliding characteristics.

In the swash plate type compressor swash plate of the present invention, the method of joining the swash plate body and the sliding plate is not particularly limited, but a joining metal is applied to the joint between the swash plate body and the sliding plate. The swash plate may be a mode in which both are interposed and joined.

In general, the joining of metals can be considered to be mechanical joining with screws, rivets or the like, welding, or the like. But,
Mechanical joining is a joining method that is expensive due to joining members such as drilling holes, screws, rivets and the like at the joining portion, and is restricted by head treatment of the joining members. In the case of welding,
Since the joining base material is a dissimilar metal of iron and Al alloy, the joining properties are not good, and the temperature of the swash plate due to heat is high enough to melt a part of the iron swash plate body serving as the base material. Also, there is a problem of deformation.

The joining method for joining with the joining metal interposed therebetween is not particularly limited. Well-known joining methods include, for example, brazing. The swash plate joined by the brazing or the like becomes a good swash plate with low cost and without distortion and deformation unlike the above-described mechanical joining and welding.

Further, in the swash plate type compressor swash plate of the present invention in which the swash plate body and the sliding plate are joined with the joining metal interposed therebetween, the swash plate body and the sliding plate are joined to the joint where the joining metal is interposed. The swash plate may have an inclined diffusion layer in which the bonding metals are diffused.

That is, the swash plate having the inclined diffusion layer at the joint portion is similar to the one joined by the brazing method, but unlike the ordinary brazing method, the intervening joining metal is formed by the swash plate. It diffuses into iron as the material of the main body and Al alloy as the material of the sliding plate, and eliminates a clear interface between them, thereby joining them.

Here, the diffusion of the joining metal into iron means the diffusion at the atomic level. At the same time, the joining metal enters a part of the iron, and at the same time, the iron also enters the joining and diffuses into each other. ing. Although there is no clear interface existing at the joint part by general brazing, that is, an interface where the two phases are completely separated, an alloy of a new composition in which iron and the joining metal are mixed at the interface. The composition of the alloy gradually approaches the composition of iron as it approaches the swash plate body. The same applies to the diffusion of the joining metal into the Al alloy.

Therefore, the above-mentioned gradient diffusion layer is a composition which gradually approaches the composition of iron and Al alloy toward the swash plate main body side and the sliding plate side, respectively, centering on the intervening joining metal or a metal close to the composition thereof. A layer having a gradient is meant.

The swash plate main body and the sliding plate are almost integrally joined by such atomic level diffusion, and the joining strength is high. Therefore, the swash plate type compressor swash plate having the inclined diffusion layer at the joint becomes a swash plate excellent in the strength of the sliding portion.

In the case of a bonding mode having a gradient diffusion layer, the bonding metal forming the gradient diffusion layer is 75 to 95 wt% Zn, 0.6 to 5 wt% Si, 0.1 to 0.8 w
It can be a Zn alloy including t% of Cr, 0.03 to 0.1 wt% of Ti, Al as the remainder, and unavoidable impurities.

In the case where the bonding is performed so as to have the inclined diffusion layer, the bonding method is not particularly limited, but generally, the diffusion phenomenon is performed by increasing the temperature of each member to be bonded. Furthermore, solid-solid diffusion does not occur unless the temperature is extremely high, and the diffusion speed is low and not practical. Therefore, it is desirable to make one of them a liquid phase and diffuse it between the liquid phase and the solid phase. The Zn alloy has a lower melting point than the Al alloy serving as the sliding plate.
It is possible to form a good graded diffusion layer between the alloy and the iron serving as the swash plate body.

Further, in the case of the swash plate having the inclined diffusion layer at the joint, the joining metal is a composite of two kinds of joining metals, the first joining metal and the second joining metal. In particular, the swash plate may have an inclined diffusion layer in which the first bonding metal is mainly diffused in the swash plate body and the second bonding metal is mainly diffused in the sliding plate. In other words, by using two types of joining metals, the diffusivity to the iron as the material of the swash plate body and the Al alloy as the material of the sliding plate, the strength of the inclined diffusion layer, etc. are made appropriate, and the joining strength of It becomes a high swashplate.

When two types of bonding metals are used, the first bonding metal can be a metal having a lower melting point than the second bonding metal. In this embodiment, the joining metal having a lower melting point is diffused to the iron swash plate main body. When the joining metal is brought into a molten state and diffused between a liquid phase and a solid phase, the swash plate body also needs to be heated to a considerable temperature. However, iron has a problem of red-hot brittleness due to heating. If the heating temperature is high, the strength of the swash plate body itself may be reduced. Therefore, by diffusing the low melting point metal into the swash plate body, a swash plate excellent in toughness and strength can be obtained.

When the first bonding metal is a metal having a lower melting point than that of the second bonding metal, the first bonding metal mainly diffused to the swash plate body side.
Of 30 to 75 wt% of Sn and 6 to 30 w
t% Zn, 0.6-4 wt% Si, 0.1-
A second alloying metal mainly composed of 0.8 wt% Cr, the balance of Al, and unavoidable impurities is made of Sn alloy.
6-5 wt% of Si and 0.1-0.8 wt% of Cr
And 0.03-0.1 wt% of Ti, and A as the balance
1 and a Zn alloy comprising unavoidable impurities.

As described above, the Zn alloy diffuses in a favorable state into the Al alloy, which is the material of the sliding plate, and the Sn alloy has a lower melting point than the Zn alloy.
In addition, it diffuses in good condition into iron, which is the material of the swash plate body,
It is possible to form a gradient diffusion layer having a sufficient bonding strength. In addition, the swash plate of this embodiment can be joined at a relatively low temperature, has the advantage that red hot embrittlement is suppressed and the strength of the swash plate itself is high.

In the swash plate according to each of the above aspects, at least one of a surface of the swash plate body to which the sliding plate is joined and a surface of the sliding plate to which the swash plate body is joined. Alternatively, an embodiment in which a groove is formed can be employed. Joining at the joint surface where the holes and grooves are formed, that is, at the joint surface where the concave portion is formed, makes the joint between the swash plate main body and the sliding plate stronger due to the anchor effect acting by the concave portion. it can.

The method for manufacturing a swash plate for a swash plate compressor according to the present invention is the method for manufacturing a swash plate according to the present invention, wherein a joining metal is interposed between the swash plate main body and the sliding plate in a molten state. Accordingly, the present invention provides a method for manufacturing a swash plate type compressor swash plate in which the swash plate main body and the sliding plate are joined. In other words, the joining metal in the molten state comes into contact with the swash plate body and the sliding plate at the joint thereof, thereby diffusing the liquid joining metal into the solid iron and Al alloys. Thereby, the swash plate main body and the sliding plate can be joined.

Further, another method of manufacturing a swash plate for a swash plate type compressor according to the present invention is a method of manufacturing the swash plate of the present invention using the above two kinds of joining metals, wherein A first bonding metal is interposed between the swash plate body and the swash plate main body, and a second bonding metal is interposed between the swash plate main body and the sliding plate on the sliding plate side in a molten state. Thereby, the swash plate main body and the sliding plate are joined. Different joining metals can be diffused to the swash plate body and the sliding plate respectively,
The strength of the joint can be further increased. In addition, by making the first bonding metal a metal having a lower melting point than the second bonding metal, sufficient diffusion of the bonding metal to the swash plate main body is ensured even at a lower temperature, and red hot embrittlement of the swash plate main body is suppressed. In addition, the strength of the swash plate itself can be increased.

[0024]

Embodiments of the present invention will be described below in more detail.

<Swash Plate Body and Sliding Plate> The swash plate type compressor swash plate of the present invention comprises an iron swash plate body and an Al alloy sliding plate joined to the swash plate body to form a sliding surface. And This swash plate is schematically shown in FIG. 1 (FIG.
FIG. 1B shows the state after bonding. The illustrated swash plate is a swash plate for a variable displacement compressor. The swash plate 1 includes a donut-shaped swash plate main body 2 and two donut-shaped sliding plates 3. The swash plate main body 2 has a shaft hole 2 a in the center portion through which a shaft is inserted. The sliding plate 3 is joined to the outer peripheral portion. The portion where the sliding plate 3 is joined is hereinafter referred to as a joining surface 2b of the swash plate main body 2. The sliding plate 3 has one surface joined to the joining surface 2b of the swash plate main body 2. Hereinafter, this surface is referred to as a joining surface 3a of the sliding plate 3. The surface on the opposite side of the joining surface 3a of the sliding plate 3 is a sliding surface 3b on which the shoe relatively moves while contacting the shoe. Further, in order to reduce the thickness of the sliding plate 3, the sliding plate 3 is joined after the sliding plate 3 is joined.
May be formed by machining or the like to form a sliding surface. Although the illustrated swash plate is of a variable capacity type, the swash plate of the present invention is not limited to the variable capacity type, and may be a swash plate of a fixed capacity compressor.

The swash plate main body 2 is made of iron. In this specification, “iron” means an iron alloy, and the swash plate main body 2 can be formed using various irons such as mild steel, high-tensile steel, cast iron, and stainless steel. The shaping can be performed by a known method such as forging, casting, machining, or a combination thereof. Among them, cast iron is preferable in consideration of manufacturing costs and the like, and among them, high strength, good elongation and toughness, high reliability, and if necessary, induction hardening. In the inoculation, graphite can be made spherical because F
Desirably, it is ductile cast iron such as CD70.

The joining surface 2b of the swash plate main body 2 is preferably clean at the time of joining, and it is desirable that oil and the like on the surface have been removed. Further, the joint surface 2b may be finished smoothly by machining or the like. In addition, the surface may be removed by shot blasting, sand blasting, or the like, and the surface may be roughened to form fine irregularities. When joining with a joining metal interposed, fine irregularities on the surface exert an effect of increasing the joining strength in joining the sliding plate 3.

Further, a hole 2c as shown in FIG. 2 (a) may be formed in the joining surface 2b by machining or the like, or a groove 2d as shown in FIG. 2 (b). It may be something. These holes 2c and grooves 2d
Increases the bonding strength by the anchor effect.
The size, number, pitch, and the like of the holes 2c, and the width, depth, number, and the like of the grooves 2d are arbitrary depending on the shapes of the swash plate main body 2 and the sliding plate 3, the size of the joint surface 2b, and the like. Things.

The sliding plate 3 is made of an Al alloy. The Al alloy is relatively inexpensive and has the effect of preventing seizure with an iron-based shoe. The sliding plate 3 may be formed by a known method such as punching with a press, forging, die casting, or the like. As an Al alloy, A390, A4302, AC4C, AC
Hypereutectic or eutectic A such as 8A, AC8B, AC8C
An l-Si alloy is desirable. Furthermore, A390 alloy (Al-17Si-) is preferable because primary crystal Si is easily crystallized, wear resistance and seizure resistance are good, and the dynamic friction coefficient is low.
4.5 Cu-0.6 Mg). The joining surface 3a of the swash plate body 2 is also used for the joining surface 3a of the sliding plate 3.
Similarly to the above, the surface is preferably clean, and the surface can be roughened by means such as shot blasting or sand blasting.

Further, holes and grooves similar to the holes 2c and grooves 2d formed on the bonding surface 2b of the swash plate main body 2 may be formed on the bonding surface 3a of the sliding plate 3. An effect similar to the above-mentioned effect of increasing the joining strength by the anchor effect can be obtained.

<Joining of Sliding Plate Using Joint Metal> The swash plate of the present invention does not particularly limit a method of joining the swash plate main body and the sliding plate. Various known joining methods such as mechanical joining and welding as described above can be adopted. However, mechanical joining, welding, and the like have the disadvantages described above, and therefore it is desirable to perform joining metal by interposing the joining metal between the swash plate main body and the sliding plate, for example, by a method such as brazing. .

In the case of joining by brazing, a brazing material serving as a joining metal may be selected from materials having a lower melting point than the Al alloy, which is a material of the sliding plate, and may be formed according to a commonly used method. The joining by brazing has an advantage that heat input to the swash plate main body and the sliding plate is small and thermal distortion of the swash plate can be reduced. Also, although the joining strength is not as high as welding, a suitable joining strength can be obtained.

The joining with the joining metal interposed is not limited to this brazing. In order to further improve the joining strength, a joining method in which the joining metal to be interposed is diffused into the swash plate body and the sliding plate can be adopted. This joining method is a very characteristic method. The bonding involving diffusion will be described in more detail.

<Joining with Diffusion of Joining Metal> A cross section of a swash plate joined by joining with diffusion of a joining metal is schematically shown in FIG. Swash plate body 2 made of iron and sliding plate 3 made of Al alloy
, That is, at the bonding portion, a bonding layer 4 connecting the both is formed. The central portion 4a of the bonding layer 4 is made of a bonding metal or a metal having a composition close to the bonding metal. The metal of the central portion 4a is called a central metal. And the bonding layer 4
Is a portion where the joining metal diffuses from the central portion 4a toward the swash plate main body 2 and the composition thereof asymptotically changes from the composition of the central metal to the composition of iron constituting the swash plate main body 2 (the swash plate main body side). (Diffusion portion) 4b, and the joining metal is diffused from the central portion 4a toward the sliding plate 3 so that the composition is asymptotically changed from the composition of the central metal to the composition of the Al alloy constituting the sliding plate 3. (Diffusion portion on the sliding plate side) 4c.

That is, the bonding layer 4 is formed as a result of the bonding metal being diffused into both the swash plate main body 2 and the sliding plate 3 at the atomic level. From the composition of the Al alloy which is the material of the sliding plate 3. Therefore, in this specification, the bonding layer 4 is referred to as a gradient diffusion layer 4.

In the joining portion having such a gradient diffusion layer 4, unlike the joining by general brazing, two phases are formed between the swash plate main body 2 and the joining metal and between the sliding plate and the joining metal. There is no clear interface like separation. The absence of this clear boundary surface allows the swash plate main body and the sliding plate to be joined very firmly.

In the case of diffusion at the atomic level, the joining metal diffuses toward the swash plate main body 2 and, at the same time, iron, which is a material of the swash plate main body 2 to a different extent, also diffuses toward the joining metal. Therefore, the diffusion of the bonding metal to the swash plate body in the main bonding means mutual diffusion accompanied by the diffusion of iron toward the bonding metal. The same applies to the diffusion of the joining metal to the sliding plate.

The composition of the central metal located at the central portion 4a of the gradient diffusion layer 4 is determined when the amount of the intervening metal (the thickness of the intervening metal) is small, or the degree of diffusion of iron or Al alloy toward the bonded metal. Is larger than the composition of the joining metal. This means that the central metal is a bonding metal or a metal having a composition close to the bonding metal.

The swash plate body side diffusion portion 4b of the inclined diffusion layer 4
The thickness (diffusion distance from the surface of the swash plate body before diffusion of the bonding metal) is desirably at least 30 μm, and the diffusion portion on the sliding plate side (diffusion distance from the sliding plate surface before the diffusion of the bonding metal) is Desirably, it is at least 40 μm. By setting the two diffusion portions to have the same thickness, the bonding strength of the bonding portion becomes stronger. In addition, a material having lower strength than the swash plate main body 2 and the sliding plate 3 is often used as the joining metal. In this case, in order to secure a sufficient strength of the joining portion,
It is desirable that the entire thickness of the gradient diffusion layer 4 be 80 μm or less.

The joining metal to be interposed in the joining portion used in the case of joining involving diffusion is so far as it can form an inclined diffusion layer having sufficient strength between the swash plate main body and the sliding plate.
The material is not particularly limited. However, the solid phase-
The diffusion between the solid phases has a low diffusion rate and takes a long time for bonding. Therefore, it is desirable to utilize the diffusion between the solid phase and the liquid phase. Considering this point, it is desirable to use a metal having a lower melting point than the Al alloy as the material of the sliding plate, and to bring the Al alloy into contact with the swash plate main body and the sliding plate in a molten state. Among the materials for such joining metals, considering that the working temperature at the time of joining is lowered, the diffusivity into the aluminum alloy is good, the strength after joining is high, and the workability is good, It is desirable to use a Zn alloy.

Among Zn alloys, 75 to 95 wt% of Z
n, 0.6 to 5 wt% Si, and 0.1 to 0.8 wt
% Of Cr, 0.03 to 0.1 wt% of Ti, Al as the balance, and an unavoidable impurity are more preferably used. The Zn alloy of this composition melts at a relatively low temperature and enables good bonding with sufficient diffusion at a temperature of 300 to 450 ° C.

The Zn constituting the Zn alloy is 75 wt.
% To 95 wt%. When the proportion of Zn is less than 75 wt%, the aluminum component increases, the melting point does not decrease, the joining temperature is high, the workability is poor, and 9
If the content exceeds 5 wt%, the diffusion of Zn into aluminum becomes remarkable, and the bonding performance deteriorates. A more desirable range is 80 wt% to 92 w
t%. Si has the effect of lowering the melting point as a joining metal and narrowing the melting temperature range. 0.6w
If it is less than t%, the effect is poor, and 5 wt%
Even if the content ratio is increased beyond the above range, the melting temperature is rather widened, and the workability at the time of manufacturing the joint metal is deteriorated.
A more desirable range is 0.8 wt% to 2 wt%. C
r has a function of preventing stress corrosion cracking due to strengthening of grain boundaries, in addition to an effect of improving heat resistance. Cr
If the content is less than 0.1 wt%, the above-mentioned effect is hardly obtained,
The effect is weakened, and if it exceeds 0.8 wt%, sludge is easily formed, a coarse intermetallic compound is formed, and the toughness is reduced. Ti has a function of refining crystal grains and improving sink characteristics during solidification. When the content of Ti is less than 0.03 wt%, the above-mentioned effects are weak, and the improvement of the characteristics cannot be achieved.
If it exceeds t%, the fluidity of the joining metal decreases, and the workability at the time of joining deteriorates. And Al plays a function of adapting to the sliding surface made of aluminum and exhibiting an effect on wettability, and makes the remainder of Zn, Si, Cr and Ti.

When a swash plate to be joined by diffusing the joining metal into the swash plate body and the sliding plate is manufactured, the joining metal is interposed in a molten state between the swash plate body and the sliding plate, thereby forming the swash plate. It can be manufactured by a manufacturing method of joining a plate body and its sliding plate. Specifically, there are various manufacturing methods, which will be described in more detail.

As one of the methods, for example, a solid joining metal is sandwiched so as to be in contact with both the joining surface of the swash plate main body and the joining surface of the sliding plate, and heated to a temperature at which only the joining metal is melted. After that, a method of cooling and solidifying the joining metal can be adopted. In this case, the joining metal may be powdery or plate-like (foil-like). A flux may be used for the swash plate body and the sliding surface in order to improve the wettability of the joining metal in a molten state. An appropriate flux may be used according to the type of the joining metal, and may be applied to the joining surface.

After the joining metal is in a molten state,
It is desirable to apply pressure in a direction in which the swash plate main body and the sliding plate approach each other, that is, to apply pressure so as to sandwich them. As the pressing means, a known means such as a press may be adopted. Distortion is generated on each joint surface by each pressing stress, and diffusion proceeds more quickly to reduce the distortion. In addition, by applying pressure, excess joining metal can be discharged from the joining portion, and the portion mainly composed of the joining metal at the center of the inclined diffusion layer in the joining portion can be thinned, and the strength of the joining portion can be reduced. Can be larger.

In the case of pressurizing, the swash plate main body and the sliding plate can be moved in a direction to be shifted while pressurizing. By rubbing the joint surfaces of the swash plate main body and the sliding plate, a large distortion can be generated in each joint surface, and the diffusion speed can be further increased. In order to obtain the same effect, before joining, the joint surface of the swash plate body and the sliding surface is subjected to joint surface distortion generating means such as shot blasting, sand blasting, peening, etc., so that the joint surface is previously distorted. May be.

In the case of joining in which the joining metal is in a molten state, if the joining is performed in the air, the molten metal may be oxidized. To eliminate this possibility, a nitrogen gas atmosphere, an argon gas atmosphere, a vacuum atmosphere, or the like is used. It is desirable to perform the bonding in a non-oxidizing atmosphere. The same applies to the following manufacturing method.

As another manufacturing method, a joining metal is brought into contact with the joining surface of the swash plate body or the joining surface of the sliding plate in a molten state to diffuse the joining metal into the swash plate body or the sliding plate. After the step and the first step, the swash plate body or the sliding plate in which the joining metal is not diffused is overlapped so that the joining surface thereof comes into contact with the joining surface of the swash plate body or the sliding plate in which the joining metal is diffused. Second, the joining metal is diffused to the swash plate body or the sliding plate in which the joining metal is not diffused by heating, and then cooled to solidify the joining metal to join the swash plate body and the sliding plate. A manufacturing method comprising the steps of: In other words, this is a two-step method in which the joining metal is first diffused into one of the swash plate body and the sliding plate, and then diffused into the other.

If this method is adopted, the thickness of the diffusion portion on the side to be diffused first can be increased. Since the diffusion rate of iron is lower than that of an Al alloy, for example, if the bonding metal is diffused in advance in the swash plate main body, a swash plate having higher bonding strength can be manufactured. The flux treatment may be handled in the same manner as described above.

In the first step, for example, when joining metal to the swash plate body in advance, first, the swash plate body is heated,
The joining metal is brought into contact with the joining surface. At this time, if the joining metal is rod-shaped (rod-shaped) and the rod-shaped joining metal is melted while rubbing the rod against the joining surface and brought into contact with the joining surface in a molten state, the swash plate body side The diffusion of the bonding metal can be easily performed. Also, after the joining metal is brought into contact with the joining surface in a molten state, the joining surface is rubbed by an ultrasonic vibrator or the like in that state, whereby the joining metal on the swash plate main body side can be easily diffused. The same applies to the case where the joining metal is diffused in the sliding plate in advance in the first step.

By employing such means for rubbing the rod and frictional means such as friction by an ultrasonic vibrator or the like, the joint surface can be distorted, and the diffusion can be increased in order to release the distortion. Will progress. Further, if the joining surface rubbing means is employed, it is possible to omit the flux treatment on the joining surface. For example, when the material of the swash plate body is ductile cast iron or the like, the wettability of the bonding surface is not good due to the influence of spheroidized graphite, but the bonding surface is not subjected to flux treatment by the bonding surface rubbing means. Also,
The bonding metal can be easily diffused, and a more rapid and inexpensive swash plate can be manufactured.

In the first step, when the joining metal is brought into contact with the joining surface of the swash plate main body or the joining surface of the sliding plate in a molten state, the remaining joining metal that is not diffused remains in the molten state. It is covered with. At the end of the first step, the swash plate body or the sliding plate may be cooled to once solidify the joining metal covering the surface and then proceed to the second step, or the joining metal may be cooled without cooling. In the molten state
The process may shift to the step of (1).

In the second step, the joining metal is diffused to the side where the joining metal has not diffused in the first step, and then cooled to solidify the joining metal to complete the joining. The same applies to the pressing and the like in the direction of sandwiching the swash plate body and the sliding plate.

As still another manufacturing method for joining the swash plate by diffusing the joining metal, a first step of bringing the joining metal into contact with the joining surface of the swash plate body in a molten state to diffuse the joining metal into the swash plate body. And a second step in which the joining metal is brought into contact with the joining surface of the sliding plate in a molten state to diffuse the joining metal into the sliding plate; and after the first and second steps, the swash plate body slides. A third plate for joining the swash plate body and the sliding plate by superimposing the plates so that their joining surfaces are in contact with each other and heating them to fuse the joining metals, and then cooling to solidify the joining metals.
A manufacturing method comprising the steps of: In other words, this is a method in which the joining metal is diffused in advance into each of the swash plate body and the sliding plate, and then the two are overlapped and joined.

In the first step and the second step, when the joining metal is brought into contact with the respective joining surfaces in a molten state, the remaining joining metal that is not diffused covers those surfaces. Then, the swash plate main body and the sliding plate are overlapped and heated so that their joining surfaces are in contact with each other, whereby the joining metals are fused and cooled to solidify the joining metals, thereby completing the joining. Note that, similarly to the above manufacturing method, a joining surface rubbing means can be employed in the first step and the second step.

At the end of the first step or the second step,
After cooling at least one of the swash plate and the sliding plate to solidify the joining metal covering the surface, and then proceeding to the third step, the joining metal may be cooled without cooling any of them. The process may proceed to the third step in the molten state. When the joining metal is solidified by cooling once, it is desirable to flux-treat the surface of the solidified joining metal. Further, in the third step, the same can be applied to the pressing and the like in the direction of sandwiching the swash plate main body and the sliding plate.

<Joining with Diffusion of Two Types of Bonding Metal> In the bonding with diffusion of the bonding metal, a bonding mode in which the bonding metal to be diffused to the swash plate and the bonding metal to be diffused to the sliding plate are different. You can also. In other words, the swash plate has a bonding mode in which the first bonding metal is mainly diffused in the swash plate body and the inclined diffusion layer in which the second bonding metal is mainly diffused in the sliding plate. Referring to FIG. 3 described above, the first bonding metal is mainly diffused into the swash plate body side diffusion portion 4b of the inclined diffusion layer 4, and the second bonding metal is mainly diffused into the sliding plate side diffusion portion 4c. Of the bonding metal is diffused. The central metal of the central portion 4a is a composite metal of the first bonding metal and the second bonding metal.

Here, that the first bonding metal and the second bonding metal are composite means that the respective metals are fused to each other at an atomic level. The composition of the central metal is not necessarily a composition in which only the first bonding metal and the second bonding metal are fused. The diffusion of iron from the main body of the swash plate and the diffusion of Al alloy from the sliding plate also have an effect.
Various compositions are obtained depending on the relationship between the amount of the joining metal and the amount of the second joining metal. Further, the composition of the metal diffused to the swash plate main diffusion portion 4b and the sliding plate side diffusion portion 4c can be changed depending on the mode of the swash plate manufacturing method described in more detail below. For example, even if the first bonding metal is diffused first to the swash plate main body side, if the second bonding metal is then interposed in the bonding portion, the second bonding metal is diffused to the swash plate main body side. Some may diffuse. Conversely, the first bonding metal can also diffuse to the sliding plate side. Therefore, in view of these facts, in this specification, it is expressed that the first bonding metal diffuses "mainly" into the swash plate body and the second bonding metal diffuses "mainly" into the sliding plate.

The advantage of diffusing different joining metals into the swash plate body and the sliding plate by using two kinds of joining metals is that, as described above, iron as the material of the swash plate body and the material of the sliding plate. Therefore, it is possible to form a gradient diffusion layer having a diffusion portion suitable for each of the Al alloys, and to obtain better bonding properties. Considering that the bonding metal is diffused in a molten state, as described above, the first bonding metal diffused to the swash plate body side is a metal having a lower melting point than the second bonding metal diffused to the sliding plate side. Desirably. As a result, the bonding metal can be diffused more efficiently even with iron having a slow diffusion rate, and the bonding can be performed at a lower temperature, thereby suppressing red hot brittleness occurring in iron and reducing the strength of the swash plate itself. Can be prevented.

The thickness of the swash plate body side diffusion portion 4b of the inclined diffusion layer 4, the thickness of the sliding plate side diffusion portion 4c, and the overall thickness of the inclined diffusion layer 4 are the same as those described above. It is preferable that the thicknesses be in the above-described appropriate ranges.

As described above, the second bonding metal includes Z
It is desirable to use an n alloy, and in that case, it is desirable to use a Sn alloy as the first joining metal. The Sn alloy has a lower melting point than the Zn alloy, can form a favorable diffusion layer with iron, and has excellent fusion with the Zn alloy.

The second joining metal is, as described above, 75% to 95% by weight of Zn and 0.6 to 5% among Zn alloys.
wt% Si, 0.1-0.8 wt% Cr, and 0.1 wt%.
It is more desirable to use a Zn alloy composed of 03 to 0.1 wt% of Ti, the balance of Al, and unavoidable impurities. And as the first joining metal, 30 to 75 w
t% of Sn, 6 to 30 wt% of Zn, and 0.6 to 4 w
It is more desirable to use a Sn alloy comprising t% of Si, 0.1 to 0.8 wt% of Cr, the balance being Al, and unavoidable impurities. The Sn alloy of this composition melts at a relatively low temperature and enables good bonding with sufficient diffusion at a temperature of 180 to 340 ° C.

The Sn constituting the above Sn alloy is 30 wt.
% To 75 wt%. When the proportion of Sn is less than 30 wt%, the melting point does not decrease, the working temperature increases, and the alloy with the second joining metal is not formed well. On the other hand, if it exceeds 75 wt%, a coarse intermetallic compound is formed, which not only makes the metal brittle, but also deteriorates the corrosion resistance of the diffusion layer. Zn has a function of improving the diffusivity to the aluminum base material and the iron main body, and improving the fluidity during the joining operation. When the content is less than 6 wt%, the effect of improving the diffusivity into aluminum is poor, and the strength at the time of joining is low. On the other hand, if it exceeds 30 wt%, not only the toughness is deteriorated, but also the melting point is raised, and the workability is deteriorated. Si not only improves the fluidity of the bonding metal and improves the workability, but also has the function of improving the strength. When the content of Si is less than 0.6 wt%, the above effects are poor. When the content of Si is more than 4 wt%, the melting point is increased, workability is deteriorated, and toughness is poor. Cr strengthens the crystal grain boundaries, improves the strength,
It has the function of preventing stress corrosion cracking. If the Cr content is less than 0.1 wt%, the above-mentioned effects are poor. If the Cr content exceeds 0.8 wt%, a coarse intermetallic compound is formed and the strength is reduced. Al improves the conformability of the surface of the base material at the time of joining, increases the wettability, and performs the function of firmly bonding.
The remainder is Si and Cr.

When a swash plate is manufactured by diffusing two kinds of joining metals into the swash plate body and the sliding plate, respectively, the first swash plate is provided between the swash plate body and the sliding plate and on the swash plate body side. Of the second joining metal between the swash plate main body and the sliding plate and on the sliding plate side.
By interposing each of the joining metals in a molten state,
It can be manufactured by a manufacturing method of joining the swash plate main body and the sliding plate. Specifically, there are various manufacturing methods, which will be described in more detail.

As one of the methods, for example, a first step in which a first bonding metal is brought into contact with the bonding surface of the swash plate body in a molten state, and the first bonding metal is diffused into the swash plate body; A second step of diffusing the second bonding metal into the sliding plate by bringing the second bonding metal into contact with the bonding surface of the plate in a molten state;
After the step and the second step, the swash plate main body and the sliding plate are overlapped so that their joint surfaces are in contact with each other, and heated to fuse the first joint metal and the second joint metal,
After that, a third manufacturing step of solidifying the fused joint metal by cooling to join the swash plate main body and the sliding plate can be adopted. That is, this is a method in which the joining metal is diffused into the swash plate main body and the sliding plate, respectively, and then the two are joined.

In the first step and the second step, the swash plate main body and the sliding plate are heated, respectively, and the first joint metal and the second joint metal are joined to their joint surfaces in the same manner as in the above-described method. What is necessary is just to make them contact each other. At this time, it is also possible to employ the above-described means for rubbing the joint surface. In addition,
When a flux treatment is performed on the joint surface, the flux treatment may be performed in the same manner as described above.

At the end of the first step or the second step,
At least one of the swash plate and the sliding plate may be cooled to temporarily solidify the respective joining metal covering the surface, and then proceed to the third step. The process may proceed to the third step in a state where the joining metal is in a molten state. When the joining metal is solidified by cooling once, it is desirable to flux-treat the surface of the solidified joining metal. Further, in the third step, the same applies to the pressing and the like in the direction of sandwiching the swash plate main body and the sliding plate.

As another manufacturing method, the first joining metal is brought into contact with the joining surface of the swash plate body in a molten state, and the first joining metal is brought into contact with the swash plate body.
A first step of diffusing the bonding metal of the swash plate main body, and bringing the second bonding metal into contact with the bonding surface of the swash plate main body in which the first bonding metal is diffused in a molten state, and joining the swash plate main body with the second bonding metal. A second step of covering the surface, and after the second step, the joining surface of the sliding plate is moved to the second position.
The second bonding metal is diffused into the sliding plate by contacting with the bonding surface of the swash plate body covered with the bonding metal of the above, and heating,
After that, a manufacturing method including a third step of solidifying the joining metal by cooling and joining the swash plate body and the sliding plate to each other can be adopted.

When this method is adopted, of the first bonding metal initially diffused in the swash plate main body, the remaining bonding metal that is not diffused covers its surface in a molten state. At that point, the second bonding metal can be melted on the bonding surface, and the manufacturing process can be shortened.

When the amount of the first bonding metal remaining without being diffused is large, the second bonding metal is fused with the molten first bonding metal. Then, in that case, in the subsequent third step, the fused bonding metal is diffused to the sliding plate. In the case of this method, the diffusion of the fused bonding metal to the sliding plate is also included in the concept that the second bonding metal diffuses mainly to the sliding plate.

In the diffusion of the first joining metal to the swash plate main body in the first step, a joining surface rubbing means can be adopted as described above. In addition, when performing a flux process to a joining surface, what is necessary is just to carry out similarly to the above. At the end of the first step or the second step, the swash plate main body or the sliding plate is cooled to once solidify the joining metal covering the surface, and then the process proceeds to the second step or the third step. Alternatively, the process may proceed to the third step without cooling the joint metal in a molten state.

In the third step, the joining metal is diffused on the sliding plate, and then cooled to solidify the joining metal, thereby completing the joining. The same applies to the pressure applied in the direction of sandwiching the swash plate main body and the sliding plate as described above.

As described above, <joining involving diffusion of joining metal><2
Various embodiments have been described with respect to bonding involving the diffusion of various types of bonding metals, but these are merely examples, and various modifications and improvements based on the knowledge of those skilled in the art may be performed. It is.

[0074]

EXAMPLES In the following, based on the above embodiment, various modes of joining were tried, and the joining between the swash plate body and the sliding plate employed in the swash plate of the present invention was evaluated.

Example 1 This example is a test for evaluating bonding performed by diffusing a bonding metal. The swash plate body is made of FCD70 cast material, and the sliding plate is A
390 (Al-17Si-4.5Cu-0.6Mg) forged material was used. Each joint surface is 70m in diameter
The shape was surrounded by a circle of mφ and a circle of 40 mmφ in diameter concentric with the circle. Zn alloys having the compositions shown in Table 1 below were used as the joining metals. Incidentally, Zn4 has a composition outside the more appropriate range shown in the above embodiment.
Alloy. In addition, as flux, NaF, CaC
1, 50% of SnF-based solution in anhydrous methanol
Was used.

[0076]

[Table 1]

First, at the joint surface between the swash plate main body and the sliding plate,
Coating the joining metal. At the time of coating, the sliding plate is previously heated to a predetermined bonding temperature of 350 to 450 ° C., and the bonding metal is rubbed. The predetermined temperature refers to a working temperature that appropriately changes depending on the joining metal, and is specifically shown in Table 2 below. As a result of this work, a diffusion layer of a sliding plate metal and a metal layer made of a joining metal are firmly formed as the coating layer.

Next, the surface of the joining metal covering the joining surfaces of the swash plate main body and the sliding plate is subjected to flux treatment, and the swash plate main body and the sliding plate are overlapped so that the joining metals come into contact with each other. The swash plate body and the sliding plate were joined by heating for 1 minute to the joining temperature shown in Table 2 below while pressurizing with a press.

After the joining, the mixture was cooled to room temperature, and then the presence or absence of blisters, the filling property of the joining metal, the appearance, and the durability were evaluated. The evaluation was performed by visual observation for the presence or absence and appearance of blisters, and by X-ray observation for the filling property of the joint metal.Durability was measured by machining a swash plate into a predetermined shape, and then using a variable displacement compressor. The compressor was installed in an actual machine, and the compressor was operated.

Further, in order to evaluate the bonding strength, FIG.
The test piece of the round bar butt joint shown in FIG.
The test piece of the lap joint shown in (b) was joined by the same method as described above. Each test piece was pulled by a tensile tester to evaluate the bonding strength of the bonding method.

Table 2 below shows the results of evaluation of the bonding in each embodiment.

[0082]

[Table 2]

As can be seen from Table 2, blisters, appearance, filling properties of the bonding metal, and durability in actual machine tests were used, except for Examples 1-4 in which a Zn alloy out of the more desirable composition range was used as the bonding metal. And the bonding strength were all good. From this result, when a Zn alloy having an appropriate composition range is used for the joining metal, the Zn alloy is 300 to 450.
It was confirmed that in the joining temperature range of ° C., the joining of the iron swash plate main body and the Al alloy sliding plate resulted in joining with good characteristics. In the endurance test, any swash plate
Seizure between the shoe and the swash plate did not occur even under the harsh conditions of sludge.

<Embodiment 2> This embodiment is a test for evaluating the joining performed by diffusing two kinds of joining metals. In this example, an endurance test was not performed using an actual machine, but only an evaluation of the bondability using a test piece was performed. The test pieces are butt joints and lap joints of the FCD70 cast material and the A390 forged material shown in FIGS. 4A and 4B, which are the same as those in the first embodiment.

The first joining metal used was an Sn alloy having the composition shown in Table 3 below. The second bonding metal used is:
This is a Zn alloy having the composition shown in Table 1 above. By the way, S
n4 is a Sn alloy having a composition outside the more appropriate range shown in the above embodiment. Table 4 below shows combinations of the first bonding metal and the second bonding metal in the bonding. In this example, a test piece joined without using a Zn alloy as the second joining metal was also manufactured.

[0086]

[Table 3]

First, the Sn alloy was diffused on the joint surface of the test piece with the base material of the FCD 70. The diffusion method is to heat the base material of the FCD 70 that has not been subjected to the flux treatment, bring the Sn alloy into contact with the joint surface in a molten state, and in that state, use a stainless steel spatula attached to an ultrasonic vibrator. By operating the vibrator, the joint surface was rubbed.

Next, a Zn alloy is further brought into contact with the molten metal from above, and when the bonding metal is in a molten state, the bonding surface of the base material of A390 is overlapped with the molten bonding metal, and the Zn alloy is brought into contact for 2 minutes. Cooling after continuing heating,
Both base materials were joined. Table 4 below also shows the bonding temperature in each bonding.

After the joining, the mixture was cooled to room temperature, and then the presence or absence of blisters, the filling property of the joining metal, the appearance, and the joining strength were evaluated. The evaluation was performed in the same manner as in Example 1. The evaluation results are shown in Table 4 below.

[0090]

[Table 4]

As can be seen from Table 4, except for Example 2-4 in which only a Sn alloy was used as a joining metal without using a Zn alloy, all of the blisters, appearance, filling properties of the joining metal, and joining strength were all different. Was a favorable evaluation. From these results, when using Sn alloy and Zn alloy in the proper composition range for the joining metal, no flux treatment and 320-380
It was confirmed that in the joining temperature range of as low as ° C., the joining of the iron swash plate main body and the Al alloy sliding plate had good characteristics.

<Embodiment 3> This embodiment is a test for evaluating the bonding performed by diffusing two kinds of bonding metals. In the present embodiment, a joint in which a hole is provided in the joint surface of the swash plate body and a joint surface of the sliding plate, and a joint in which a groove is provided in the joint surface of the swash plate body are employed. As in the case of Example 1, the swash plate body was made of FCD70 cast material, and the sliding plate was made of A390 forged material. Each joining surface has a circle with a diameter of 70 mmφ and a diameter 40 concentric with the circle.
The shape was surrounded by a circle of mmφ.

In the case of a joint in which holes are provided in the joint surface of the swash plate main body and the joint surface of the sliding plate, a diameter of 2 mmφ and a depth of 3 m are respectively provided at four equal positions on each joint surface.
The hole m was drilled by machining. In the case where the swash plate body is provided with grooves, three annular grooves having a width of 1.5 mm and a depth of 0.7 mm are provided by machining.

The first joining metal used was an Sn alloy having the composition shown in Table 3 above. The second bonding metal used is:
This is a Zn alloy having the composition shown in Table 1 above. Table 5 below shows combinations of the first bonding metal and the second bonding metal in the bonding. In this example, as in the case of Example 2, a swash plate joined without using a Zn alloy as the second joining metal was also manufactured.

First, the Sn alloy was diffused on the joint surface of the swash plate main body. As in the case of Example 2, the diffusion method was such that the swash plate body not subjected to the flux treatment was heated, and the Sn alloy was brought into contact with the joint surface in a molten state, and then attached to the ultrasonic vibrator in that state. By operating the shaker with a stainless steel spatula, the joint surface was rubbed.

Next, as in the second embodiment, Z
The n alloy is contacted in a molten state from above, and when the joining metal is in a molten state, the joining surface of the sliding plate is overlapped with the molten joining metal, and a light load of about 4 to 8 t is applied by pressing. After heating was continued for 30 seconds while applying pressure, cooling was performed, and the swash plate body and the sliding plate were joined. Table 5 below also shows the bonding temperature for each bonding. In each of the examples, both joining in a mode in which a hole was provided in the joining surface and joining in a mode in which a groove was provided in the joining surface were performed.

After the joining, the mixture was cooled to room temperature, and then the presence or absence of blisters, the filling property of the joining metal, the appearance, and the durability with an actual machine were evaluated. The evaluation was performed in the same manner as in Example 1. The evaluation results are shown in Table 5 below.

[0098]

[Table 5]

As can be seen from Table 5 above, except for Example 3-3 in which only the Sn alloy was used as the joining metal without using the Zn alloy, the blister, the appearance, the filling property of the joining metal, and the durability by the actual machine test were used. All were favorable evaluations. From this result, even in the case of joining in a mode in which grooves or holes are provided on the joining surface using Sn alloys and Zn alloys in an appropriate composition range for the joining metal, no flux treatment is performed, and
In the low joining temperature range of 380 ° C, the iron swash plate body and A
It was confirmed that in the joining of the sliding plate made of 1 alloy, the joining was performed with good characteristics.

[0100]

The swash plate type compressor swash plate of the present invention comprises an iron swash plate main body and an Al alloy sliding plate joined to the swash plate main body to form a sliding surface. With such a configuration, the swash plate of the present invention is inexpensive and has excellent sliding characteristics with no seizure between the shoe and the shoe. Further, by joining the joining metal between the swash plate main body and the sliding plate, the joining metal is further diffused to the swash plate main body and the sliding plate, respectively. It becomes a board. The swash plate manufacturing method of the present invention joins the swash plate main body and the sliding plate with the joining metal interposed in a molten state, and the swash plate of the present invention can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a schematic view of a swash plate for a swash plate compressor according to the present invention.

FIG. 2 shows a hole or a groove provided on a joint surface of a swash plate main body.

FIG. 3 conceptually shows a joint between a swash plate main body and a sliding plate.

FIG. 4 shows a test piece manufactured in an example.

[Explanation of symbols]

 1: swash plate 2: swash plate main body 2a: shaft hole 2b: joint surface 2c: hole 2d: groove 3: sliding plate 3a: joint surface 3b: sliding surface 4: inclined diffusion layer (joining layer) 4a: central portion 4b: Swash plate body side diffusion part 4c: Sliding plate side diffusion part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B23K 103: 10 F04B 27/08 AEL (72) Inventor Manabu Sugiura 2-1-1 Toyotamachi, Kariya-shi, Aichi Prefecture Address Toyota Motor Corporation (72) Inventor Takamitsu Mukai 2-1-1 Toyota-cho, Kariya-shi, Aichi F-term (reference) 3H076 AA06 BB26 BB40 CC20 4E067 AA02 AB06 BA00 EB00

Claims (10)

[Claims] 1. A swash plate type compressor swash plate comprising: an iron swash plate main body; and an Al alloy sliding plate joined to the swash plate main body to form a sliding surface. 2. A swash plate type compressor swash plate according to claim 1, wherein a joining metal is interposed at a joining portion between said swash plate main body and said sliding plate. 3. The swash plate type compressor swash plate according to claim 2, wherein the joining portion has an inclined diffusion layer in which the joining metal is diffused to the swash plate main body and the sliding plate, respectively. 4. The bonding metal according to claim 1, wherein the Z content is 75 to 95 wt%.
n, 0.6 to 5 wt% Si, and 0.1 to 0.8 wt
4. The swash plate for a swash plate compressor according to claim 3, wherein the swash plate is a Zn alloy including% Cr, 0.03 to 0.1 wt% Ti, Al as the balance, and unavoidable impurities. 5. 5. The bonding metal comprises a first bonding metal and a second bonding metal.
And the first bonding metal diffuses mainly into the swash plate body at the bonding portion, and the second bonding metal mainly spreads on the sliding plate. The swash plate for a swash plate compressor according to claim 2, further comprising a gradient diffusion layer in which the bonding metal is diffused. 6. The swash plate compressor according to claim 5, wherein the first joining metal is a metal having a lower melting point than the second joining metal. 7. The method according to claim 1, wherein the first bonding metal is 30 to 75 wt.
% Sn, 6 to 30 wt% Zn, and 0.6 to 4 wt%
% Of Si, 0.1 to 0.8 wt% of Cr, the balance being Al, and an unavoidable impurity, and the second bonding metal is 75 to 95 wt% of Zn,
0.6-5 wt% Si and 0.1-0.8 wt% C
The swash plate for a swash plate compressor according to claim 6, which is a Zn alloy comprising r, 0.03 to 0.1 wt% Ti, Al as the balance, and unavoidable impurities. 8. A hole or groove is formed in at least one of a surface of the swash plate body to which the sliding plate is joined and a surface of the sliding plate to which the swash plate body is joined. A swash plate for a swash plate type compressor according to any one of claims 1 to 7. 9. A method for manufacturing a swash plate type compressor swash plate, comprising: an iron swash plate main body; and an Al alloy sliding plate joined to the swash plate main body to form a sliding surface, A method for manufacturing a swash plate type compressor swash plate for joining the swash plate body and the sliding plate by interposing a joining metal in a molten state between the swash plate body and the sliding plate. 10. A method for manufacturing a swash plate type compressor swash plate, comprising: an iron swash plate main body; and an Al alloy sliding plate joined to the swash plate main body to form a sliding surface, A first joining metal is provided between the swash plate body and the slide plate and on the swash plate body side, and a first joint metal is provided between the swash plate body and the slide plate and on the slide plate side. A method for manufacturing a swash plate type compressor swash plate, wherein the swash plate main body and the sliding plate are joined by interposing the respective joining metals in a molten state.