JPH1029256A - Composite material and method for producing the same - Google Patents

Abstract

(57) [Problem] To improve the bonding strength between different kinds of materials without deteriorating a resin material or the like or reducing the strength of a composite material itself. SOLUTION: A plate member 4 having a hole 3 is joined to a first member 1 to form an intermediate layer 2. The composite material 6 is formed by partially filling the second member 5 made of a different material from the first member 1 in the hole 3 of the intermediate layer 2 while partially filling the second member 5. The hole 3 of the plate 4 constituting the intermediate layer 2 has a shape exhibiting a resistance to tensile stress in the direction perpendicular to the surface of the first member 1, for example, a first hole opened on the second member side. A second hole having a space communicating with the first hole and having a space not overlapping with the first hole, or an opening area of the second member on the first member side. It has a shape smaller than the opening area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a composite material between different kinds of members and a method for producing the same.

[0002]

2. Description of the Related Art In recent years, with the development of industrial technology, there has been an increasing demand for a composite material having a plurality of functions which cannot be realized by a single material, for example, a laminate of two types of materials having different characteristics and joined together. ing. In the case of combining two different types of metal materials among such composite materials, it is necessary to apply a hot rolling method (for example, a cladding method), a molten metal solidification method (for example, a casting method), etc. to produce the composite material. And relatively good bonding strength is obtained by these manufacturing methods.

[0003] By the way, the characteristics required for composite materials are becoming more complicated, and it is also required to composite different materials such as metal materials and resin materials. However, in a composite material or the like in which a metal material and a resin material are laminated, there is a problem that it is difficult to obtain a sufficient bonding strength by a composite method applied to a composite material between metal materials. That is, when different metal members are joined by the melt solidification method, a diffusion reaction or the like occurs due to the metal materials, and physical or chemical bonding occurs together with mechanical bonding. It is very difficult to obtain a sufficient joining strength because of simple mechanical connection between the resin and the resin material. In addition, when a metal material and a resin material are joined under high-temperature and high-pressure conditions, the resin material is deteriorated or must be held for a long time under such conditions, thereby increasing the manufacturing cost. There is a problem.

[0004] Further, when a metal material and a resin material are combined, it is conceivable to join them using an adhesive or the like.
In addition to the difficulty in selecting an adhesive that exhibits good adhesion to both metal and resin materials, a resin-based adhesive necessarily has a metal / resin joint interface. However, the joining strength between a metal material and a resin material cannot be basically improved. Further, as a method of improving the interface strength when joining two types of members, for example, a method of increasing the surface area by honing or chemical etching to increase the bonding area is known. In this case, there is a limit to the enlargement of the bonding area, and the resistance to shear separation at the interface is small, so that the bonding strength between different kinds of materials cannot be sufficiently increased.

On the other hand, in a composite material composed of two kinds of metal materials, a porous intermediate layer composed of a porous sintered layer of metal powder or the like is provided at the joint interface, and one of the metal materials is placed in the porous intermediate layer. It has been proposed to laminate on the other metal material while filling (see JP-A-7-232261). However, even if such a configuration is applied to a composite material of a metal material and a resin material, etc., it is difficult to obtain a sufficient filling amount of the resin material in the porous sintered layer of the metal powder. It is difficult to obtain a sufficient bonding force with a composite material or the like. Furthermore, in addition to the low strength of the porous sintered layer itself of the metal powder, the resin material itself is unlikely to be a strength member, resulting in insufficient strength of the intermediate layer, resulting in the strength of the composite material itself. Is reduced.

[0006]

As described above, in the conventional composite material and the method of manufacturing the same, a sufficient bonding strength can be obtained when different materials such as a metal material and a resin material are laminated and joined. The problem that it is difficult arises. Further, problems such as deterioration of the resin material and increase in manufacturing cost are caused.

Further, even if an intermediate layer such as a porous sintered layer of metal powder is interposed between different kinds of materials, it is difficult to obtain a sufficient filling amount of a resin material or the like, so that it is difficult to obtain a sufficient bonding force. It is. Furthermore, when one is a low-strength material such as a resin material, the strength of the composite material itself decreases because the strength of the porous sintered layer itself is low in addition to the fact that the material itself is unlikely to be a strength member. Problem arises.

For this reason, in a composite material in which different materials such as a metal material and a resin material are combined, for example, the deterioration of the resin material and the strength of the composite material itself are not caused, and the difference between the different materials is prevented. It is an issue to improve the reliability of a composite material between different materials by improving the bonding strength.

SUMMARY OF THE INVENTION The present invention has been made to address the above-described problems, and an object of the present invention is to improve the bonding strength between different kinds of materials without deteriorating a resin material or the like or reducing the strength of a composite material itself. It is an object of the present invention to provide a composite material and a method for producing the same, which enable the above.

[0010]

According to a first aspect of the present invention, there is provided a composite material comprising: a first member; and an intermediate layer comprising a plate joined to the first member and having a hole. When,
A second member made of a dissimilar material to the first member, the second member being partially stacked while being partially filled in the hole of the plate constituting the intermediate layer, wherein the hole of the plate is formed of the second member. 1 is characterized in that it has a shape that shows a resistance to tensile stress in the vertical direction on the surface of the member.

The composite material of the present invention is specifically described in claim 2
As described in the above, the hole of the plate material constituting the intermediate layer is communicated with the first hole opened to the second member side and the first hole, and the first And a second hole having a space that does not overlap with the hole of the second member, or as described in claim 3, the hole of the plate material forming the intermediate layer is provided on the second member side. The opening area is smaller than the opening area on the first member side.

[0012] In the method of manufacturing a composite material according to the present invention, the first member and the second member made of a different material from the first member may be laminated. In producing the composite material, the first member is provided on the first member.
A step of joining a plate material having a hole showing resistance to tensile stress in the vertical direction to the member surface of the member to form an intermediate layer,
Laminating the second member on the first member while filling a part of the second member into a hole of the plate material forming the intermediate layer.

According to the composite material and the method of manufacturing the composite material of the present invention, a metal material is used as a first member, and a resin material having a curing temperature lower than the melting point of the metal material and a rubber are used as a second member. It is particularly suitable when using one selected from materials, glass materials and ceramic materials.

In the composite material and the method for producing the same according to the present invention, the intermediate layer, which is partially filled with the second member, is formed by using a plate member having a hole opened at least on the second member side as the first member. Since it is configured to be joined on the upper side, the strength of the intermediate layer itself and the joining strength between the first member and the intermediate layer can be improved. In addition, since the space filled with the second member is formed by the hole, it is possible to set a large space to be the filling portion of the second member.
That is, the filling amount of the second member in the intermediate layer can be increased.

The shape of the hole is a shape showing a resistance to tensile stress in the direction perpendicular to the surface of the first member, for example, the shape of the second member.
And a second hole having a space that does not overlap with the first hole opened on the member side of the first member, or the opening area of the second member is smaller than the opening area of the first member. The shape is an area. Thus, even when a resin material, a glass material, or the like is used as the second member, the bonding strength to the first member can be increased,
The reliability of the composite material between different materials can be greatly improved.

[0016]

Embodiments of the present invention will be described below.

FIG. 1 is a sectional view schematically showing the structure of a composite material according to one embodiment of the present invention. In the figure,
Reference numeral 1 denotes a first member serving as one of the constituent members of the composite material, and an intermediate layer 2 is provided on the first member 1. Here, the material forming the first member 1 is not particularly limited, and for example, various metal materials can be used.

The intermediate layer 2 provided on the first member 1 is communicated from a surface on the first member 1 side to an opposite surface (a surface on a second member 5 side described later). The intermediate layer 2 is constituted by one or a plurality of plate members 4 having holes 3, and the plate member 4 is joined to the surface of the first member 1. The hole 3 provided in the plate member 4 constituting the intermediate layer 2 has a shape showing a resistance to a tensile stress in a direction perpendicular to the surface of the first member 1 as described later in detail. .

For example, when the first member 1 is a metal material, it is preferable to use a similar metal material for the plate material 4 constituting the intermediate layer 2. It is preferable to use a material. In particular,
For example, if the first member 1 is a steel material, the same material or an iron-based alloy may be used. The thickness of the plate material 4 constituting the intermediate layer 2 is not particularly limited, and varies depending on the material and thickness of the first member 1 and a second member 5 described later, but is 0.01 to 0.01. It is preferred to be about 100 mm. Further, the cross-sectional shape of the hole 3 can be various shapes such as a circle, an ellipse, a rectangle, and an irregular shape. Further, the size and the formation pitch of the holes 3 may be set according to the material, thickness and the like of the first member 1 and the second member 5 so as to sufficiently maintain their bonding strength. It is set appropriately from the range of about 10 μm to several tens of mm. The holes 3 do not have to be formed regularly, but may be formed irregularly. However, the bonding strength with the first member 1 and the second member 5 is improved as a whole. Above, it is preferable to form regularly.

Further, the plate material 4 constituting the intermediate layer 2 is formed of a material having a lower melting point or a material capable of producing a material having a lower melting point (hereinafter, referred to as a low melting point bonding material).
It is joined to the first member 1. When the plate material 4 is made of a metal material, such a low melting point bonding material may be a metal material having a lower melting point or a metal material which can react with the plate material 4 to generate a substance (alloy or the like) having a lower melting point. Is used. Such a low-melting substance may be a material that functions as a so-called brazing material. Specifically, when the plate material 4 is made of an iron-based material, examples thereof include copper and copper alloy, aluminum and aluminum alloy.

The hole 3 of the plate 4 constituting the intermediate layer 2 is partially filled with a second member 5 made of a material different from that of the first member 1. Is laminated on the first member 1. That is, the first member 1 and the second member 5 are joined and formed on the first member 1 and are connected via the intermediate layer 2 in which a part of the second member 5 is filled. . These form a composite material 6.

The second member 5 may be made of a material different from that of the first member 1. For example, the second member 5 has a low bonding property with a metal material as the first member 1 and has its own property. The present invention is suitable when a resin material, rubber material, glass material, ceramic material, or the like having low strength is used. In particular, it is suitable when a resin material, a rubber material, a glass material, a ceramic material, or the like having a curing temperature lower than the melting point of the metal material serving as the first member 1 is used as the second member 5. The specific materials are selected according to the characteristics required for the composite material. Further, the above-mentioned curing temperature means a thermosetting temperature or a softening / solidifying temperature when a resin material or a rubber material is used as the second member 5;
When a glass material is used, the melting (or fluidization) solidification temperature is used. When a ceramic material is used, the sintering temperature is used.

Here, the hole 3 of the plate 4 constituting the above-mentioned intermediate layer 2 has a shape showing a resistance to tensile stress in the direction perpendicular to the surface of the first member 1. The hole 3 that exhibits a resistance to the tensile stress has a shape that exhibits a resistance when a pulling force acts on the second member 5 partially filled therein. A wedge effect is exerted on the drawn-out force (tensile stress) to increase the bonding strength of the second member 5 to the first member 1.
Such a hole 3 includes: (1) a first hole opened to the second member side and a space which is communicated with the first hole and does not overlap with the first hole. And a second hole having a hole shape. (2) A hole shape in which the opening area on the second member side is smaller than the opening area on the first member side. Etc. are exemplified.

As described above, in the composite material 6 of this embodiment, the intermediate layer 2 that is partially filled with the second member 5 is provided on the plate member 4 having the holes 3 on the first member 1. Due to the joining, the strength of the intermediate layer 2 itself and the joining strength between the first member 1 and the intermediate layer 2 can be improved. In addition to the improvement of the joining strength, the space filled with the second member 5 is formed by the hole 3, so that the space can be set large. This makes it possible to fill the intermediate layer 2 with the second member 5 in a sufficient amount. Then, the hole 3 has the shape (1) or the shape described above.
(2) Since it has a shape exhibiting a resistance to tensile stress, etc., even when a resin material, a glass material, or the like is used as the second member 5, it is possible to increase the bonding strength to the first member 1. It is possible to greatly improve the reliability of the composite material 6 between different materials.

When a resin material is used as the second member 5, for example, a large amount of the resin material can be easily filled in the intermediate layer 2 (ie, in the hole 3). Sufficient bonding strength can also be obtained by filling a resin material, applying pressure, and then performing a thermosetting treatment. According to such a process, the deterioration of the resin material or the like unlike the conventional pressure impregnation at a high temperature is not caused, so that the resin material or the like having the original characteristics can be easily used as the second member 5. It is possible to obtain.

The plate 4 having the holes 3 exhibiting a resistance to the tensile stress described above may be any material having such an effect, and is not limited to a plate having holes provided in a general plate. Instead, a network in which a plurality of meshes are joined so that the meshes do not completely match can be used.

Next, the plate member 4 having the holes 3 exhibiting a resistance to the above-described tensile stress will be described in detail with reference to FIGS. 2, 3, 4 and 5. First, a specific example of the hole shape in (1) will be described. Intermediate layer 2 shown in FIG.
The plate member 4 includes a first plate member 8 having a circular first hole 7 formed in a staggered shape of 60 °, a first plate member 8 disposed on the second member 5 side, and a first hole member. 7 having the same pattern and the same pitch as the second hole 7 and having a circular second hole 9 having a diameter larger than that of the first hole 7, and being arranged on the first member 1 side. The plate 10 is connected to the first hole 7 and the second hole 7.
Are formed of a joining material joined such that the centers of the holes 9 substantially coincide with each other. Then, the plate material 4 made of such a bonding material is bonded on the first member 1 to form the intermediate layer 2. Note that the low melting point bonding material as described above is used for bonding the first plate material 8 and the second plate material 10. Less than,
The same is true.

That is, the first hole 7 and the second hole 9 described above constitute a step hole having a large diameter on the first member 1 side. This step hole also corresponds to the hole shape of (2). In the hole 3 having such a shape, the first member 1 has a large diameter so that a space not overlapping the first hole 7 is formed in the second hole 9. Indicate resistance to tensile stress, and increase the bonding strength of the second member 5 to the first member 1. In other words, the lower surface 8a of the first plate member 8 around the first hole 7 overlapping the second hole 9, that is, the first hole 7 and the second hole 9
The terrace portion of the step hole constituted as described above shows resistance to tensile stress.

As the plate members 8 and 10 as described above, plate members having holes 7 and 9 formed by machining such as punching or etching or the like can be used. For example, punching plates having different hole diameters are used. be able to.
The same applies to the following examples.

By using the plate member 4 made of the bonding material between the first plate member 8 and the second plate member 10 described above, the first hole portion 7 serving as a portion exhibiting a resistance to tensile stress is heavy. The second hole 9 having a space that cannot be obtained can be easily obtained, which greatly contributes to a reduction in manufacturing cost of the composite material 6. Further, since the second holes 9 having a space that does not overlap with the first holes 7 can be easily formed uniformly, the coupling strength between the first member 1 and the second member 5 is averaged. Can be achieved. That is, it is possible to prevent peeling, characteristic deterioration, and the like due to a partial decrease in bonding strength.

FIG. 2 shows a case where the first plate member 8 and the second plate member 10 are joined so that the centers of the first hole 7 and the second hole 9 substantially coincide with each other. However, the present invention is not limited to this, and the first hole 7 and the second hole 9 are displaced from the center, and the first hole 7 and the second hole 9 are partially overlapped. In addition, various joining materials such as those obtained by joining three or more plate materials so as to form multiple step holes can be used. That is, the first plate member 8 is so arranged that the first hole 7 and the second hole 9 at least partially overlap.
It is possible to use a joining material in which the second member 5 and the second plate member 10 are joined, but the hole shape shown in FIG. 2 facilitates the filling of the second member 5 and reduces the tensile stress from various directions. Since the resistance is evenly exhibited, it can be said that the shape is more desirable.

In the above-described example, the step hole having the large diameter on the first member 1 side is formed by joining the plate members 8 and 10 having the hole portions 7 and 9 having different diameters. The step hole can be formed by etching one plate material from both sides, and in this case, the same effect as in the above-described example can be obtained.

Next, another specific example of the hole shape of (1) will be described. Plate material 4 constituting intermediate layer 2 shown in FIG.
A first plate member 8 having a circular first hole 7 formed in a staggered shape at 60 ° and disposed on the second member 5 side;
The first hole 7 is formed in a 60 ° staggered shape at the same pitch inverted by 180 °, has a circular second hole 9 having the same diameter as the first hole 7, and The second plate member 10 arranged on the first member 1 side is joined so that the center point of the first hole 7 and the center of gravity of the position where the second hole 9 is formed substantially coincide with each other. It is made of wood. Then, the plate material 4 made of such a bonding material is bonded on the first member 1 to form the intermediate layer 2.
Is composed.

That is, the above-mentioned first hole 7 is disposed over three second holes 9 arranged so as to form an equilateral triangle. Each is communicated. In other words, the second holes 9 are three first holes 7 arranged so as to form an equilateral triangle.
Are connected to the lower side of the first plate member 8, and the lower surface 8a corresponding to the bridge portion of the first plate member 8 exhibits resistance to tensile stress. In the hole 3 having such a shape, one first hole 7
A space that does not overlap with the three second holes 9 is formed, and when viewed in reverse, one second hole 9 does not overlap with the three first holes 7. Since the space is formed, the filling shape of the second member 5 with respect to the hole 3 is complicated and averaged, so that the bonding strength of the second member 5 with respect to the first member 1 is more uniform. It is possible to increase.

By using the plate member 4 made of the bonding material between the first plate member 8 and the second plate member 10 as described above, the first member becomes a portion exhibiting a resistance to tensile stress similarly to the above-described example. The second hole 9 having a space that does not overlap with the hole 7 can be easily obtained, which greatly contributes to a reduction in the manufacturing cost of the composite material 6. Further, since the plurality of first holes 7 and the plurality of second holes 9 overlap, the first member 1
It is possible to further improve and equalize the bonding strength between the first member 5 and the second member 5.

In FIG. 3, the first point of the first hole 7 is substantially coincident with the center of gravity of the position where the second hole 9 is formed.
Although the case where the plate material 8 and the second plate material 10 are joined is shown, for example, as shown in FIG. 4, the same pattern (not limited to the 60 ° staggered pattern shown in FIG. Various joining materials can be used, such as one in which the first hole 7 and the second hole 9 formed at the same pitch and the same diameter are joined with a shift of 1/2 pitch. In the bonding material shown in FIG. 4, a space that does not overlap with one first hole 7 is formed by two second holes 9, and when viewed in reverse, one second hole 9 is formed. The portion 9 forms a space that does not overlap with the two first holes 7. That is, a plurality of first holes 7 and second holes 9 having the same pattern and substantially the same diameter overlap each other.
It is possible to use a joining material in which the first plate 8 and the second plate 10 are joined. However, since a more uniform drag can be obtained, the joining material shown in FIG. 3 can be said to be a particularly preferable shape.

In the present invention, it is possible to use a bonding material in which a single second hole having substantially the same diameter does not overlap a single first hole. As shown in FIG. 4, a plurality of second holes 9 correspond to one first hole 7.
By forming a non-overlapping space, it is desirable since a larger drag can be obtained.

Next, a specific example of the hole shape of the above (2) will be described. The plate member 4 constituting the intermediate layer 2 shown in FIG. 5 has a frusto-conical hole 3 in which the opening 3b on the first member 1 side is larger than the opening 3a on the second member 5 side. Have
Such a plate material 4 is joined onto the first member 1 to form an intermediate layer 2
Is composed. The truncated conical hole 3 exhibits resistance to tensile stress in the entire hole 3, thereby increasing the bonding strength of the second member 5 to the first member 1.

By using the plate member 4 having the above-mentioned frusto-conical hole 3, a resistance against tensile stress can be obtained as a whole of the hole 3, whereby the first member 1 and the second member 5 can be obtained. It is possible to improve the bonding strength and average the bonding strength.

Although the resistance to the tensile stress may be obtained for the entire hole as shown in FIG. 5, it is preferable that the hole having a surface showing the resistance is provided as shown in FIGS. In this case, the first member 1 and the second member 5 can be connected more reliably and with a large force.

The composite material 6 of the embodiment described above can be manufactured, for example, as follows. That is, first, the plate members 4 of various shapes described above are laminated on the surface of the first member 1 via the low melting point bonding material, and heat-treated at a temperature corresponding to the low melting point bonding material used. To form the joined intermediate layer 2 on the first member 1.

Next, the second member 5 is partially filled into the hole 3 of the plate material 4 constituting the intermediate layer 2 while the first member 1 is partially filled.
Laminate on top. The laminating method includes a method in which a powder or the like of a material constituting the second member 5 is pressure-filled into the hole 3 of the intermediate layer 2 and then heat-curing, or a method of melting the material constituting the second member 5. A method of impregnating a liquid or a solution can be applied.

It should be noted that when the above-mentioned powdery raw material is heated and hardened, it is possible to use softening impregnation, melt impregnation or the like in combination, but in the present invention, the individual holes 3 in the intermediate layer 2 are relatively large. Since it can be formed into a shape and the powder material can be easily filled in a large amount, a sufficient bonding strength can be obtained even by ordinary pressure filling and heat curing treatment. This is particularly effective when a resin material is used as the second member 5, and it is possible to prevent deterioration of the resin material.

In the above embodiment, a composite material in which a second member 5 made of a resin material, a rubber material, a glass material, or the like is laminated on a first member 1 made of a metal material or the like has been described. The members constituting the composite material of the invention are not limited to these, and for example, the first member 1
It is also possible to use a ceramic material, a glass material or the like as the material, and to use a metal material, a resin material, a rubber material or the like as the second member 5. When a ceramic material, a glass material, or the like is used as the first member 1, a plate made of a similar material may be used.

Next, a specific example in which the composite material of the present invention is applied to a sliding member will be described with reference to FIG.

The sliding member 11 shown in FIG. 6 has a drag on one surface of a sliding member main body 12 made of a metal material such as various alloys against a tensile stress perpendicular to the surface (joining surface). An intermediate layer is formed by joining a plate material 14 having a hole 13 shown in the drawing, and a fluorine-based resin layer 15 is laminated and formed while partially filling the hole 13 of the plate material 14 constituting the intermediate layer. I have. In the sliding member 11, the fluorine-based resin layer 15 forms a sliding surface. The specific configuration of the sliding member 11 is as shown in the above-described embodiment of the composite material of the present invention.

The fluorine-based resin layer 15 is made of a fluorine-based resin represented by polytetrafluoroethylene (PTFE). PTFE may be used alone or glass fiber or molybdenum disulfide may be mixed. PTFE
May be used. It is also possible to adopt a laminated structure of a single layer of PTFE and a PTFE layer mixed with glass fiber or molybdenum disulfide. In this case, PTFE
Is arranged on the sliding member body 12 side so that the PTFE can be easily filled in the hole portion 13 and the sliding surface side has excellent wear resistance and a glass fiber having a small coefficient of friction. By using PTFE filled with molybdenum or the like, excellent sliding characteristics can be exhibited. In addition, the heat bonding of the single layer of PTFE and the PTFE layer containing the filler can be performed simultaneously.

In the sliding member 11 described above, the PTF
As described in the above-described embodiment of the composite material according to the present invention, the sliding member body 1 is made of a fluorine-based resin layer 15 made of E or a mixture thereof with glass fiber, molybdenum disulfide or the like.
2 can be uniformly joined with high strength. Therefore, the reliability of the sliding member 11 and the reliability of various devices using the same can be greatly improved.

[0049]

Next, specific examples of the present invention will be described.

Example 1 First, as the plate material 4 constituting the intermediate layer 2, as shown in FIG. 2, a 60 mm zigzag through hole having a diameter of 3 mm and a pitch of 4 mm was formed in a 200 mm × 200 mm × 1 mm thick SS41 steel plate. (First plate 8) and the same SS41 steel plate with a diameter of 2 mm
One having a 60 ° staggered through hole with a pitch of 4 mm (second plate material 10) was prepared.

On the other hand, as the first member 1, 200 mm × 200
An SS41 steel sheet having a size of 20 mm and a thickness of 20 mm was prepared, and a pure copper paste obtained by mixing a pure copper powder having an average particle diameter of 10 μm with an appropriate amount of an organic binder was applied to the SS41 steel sheet at a thickness of 0.2 mm.
First, the above-mentioned diameter 3 mm
SS41 steel plate having a 60 ° zigzag through hole is disposed, and the pure copper paste having a thickness of 0.2
After the application in mm, the SS41 steel plate having the above-described 2 ° diameter staggered through-holes of 60 ° was arranged such that the centers of the through-holes coincided with each other.

Next, the first member on which the plate material constituting the above-mentioned intermediate layer is arranged is placed in a hydrogen gas atmosphere at 1373 K for 30 seconds.
After sintering for one minute, an intermediate layer having a stepped hole was formed on the first member made of the SS41 steel plate.

Thereafter, the first member formed by joining the above-mentioned intermediate layers is arranged at the bottom of the mold, and PTFE powder is filled into the mold at a pressure of 40 MPa as a material for forming the second member. After that, PTFE was thermally cured under the conditions of 673K × 1 hour. In this way, a composite material was obtained, which was laminated and bonded while partially filling PTFE in an intermediate layer made of a plate material having holes formed and bonded on an SS41 steel plate.

As an evaluation of the characteristics of the composite material, the shear strength was measured as follows. That is, the first embodiment
According to the conditions according to the above, between the two first members each having an intermediate layer formed on the surface, P
Using a sample in which TFE was interposed (filled and laminated), a shear test was performed in parallel with the joint surface. As a result, a good shear strength of 15.5 MPa was obtained.

Example 2 As a plate material 4 constituting the intermediate layer 2, an SS41 steel plate having a size of 200 mm × 200 mm × 2 mm in thickness was first used.
A staggered through hole of 60 ° was formed, and then a hole having a diameter of 3 mm and a depth of 1 mm was formed from one side at the same center as the through hole.

The joining with the first member and the production of the composite material were performed in the same manner as in Example 1 except that this one plate material was used as the intermediate layer. The shear strength of the obtained composite material was measured and evaluated in the same manner as in Example 1.
Pa and good strength were obtained. Example 3 As a plate material 4 constituting the intermediate layer 2, two SS41 steel plates of 200 mm × 200 mm × 1 mm in thickness having a diameter of 3 mm and a pitch of 4 mm were used.
60 ° staggered through holes were formed respectively. Next, the same pure copper paste as in Example 1 was applied to a thickness of 0.2 mm on a 200 mm × 200 mm × 20 mm thick SS41 steel plate as the first member 1. First, on the coating layer of the pure copper paste, one SS41 steel plate having the above-mentioned 60 ° zigzag through hole having a diameter of 3 mm is arranged, and then the pure copper paste is applied on the SS41 steel plate at a thickness of 0.2 mm. As shown in FIG. 3, the bridge structure is formed by matching the center point of the lower 60 ° staggered through hole with the center of gravity of the upper 60 ° staggered through hole, ie, the portion connecting the three through holes. The other 60 ° to form
An SS41 steel plate having staggered through holes was arranged.

Next, firing was performed under the same conditions as in Example 1,
An intermediate layer having a hole having a bridge structure was joined and formed on the first member made of SS41 steel plate. Thereafter, under the same conditions as in Example 1, the composite material was manufactured by laminating and bonding while partially filling PTFE in the hole of the intermediate layer. When the shear strength of the obtained composite material was measured and evaluated in the same manner as in Example 1, a good strength of 15.3 MPa was obtained.

COMPARATIVE EXAMPLE 1 Example 1 was repeated except that a 200 mm × 200 mm × 2 mm thick SS41 steel plate having 60 mm zigzag through holes with a diameter of 3 mm and a pitch of 4 mm was used as the plate material 4 constituting the intermediate layer 2. Bonding with the first member and production of a composite material were performed in the same manner as in the above. When the shear strength of the obtained composite material was measured and evaluated in the same manner as in Example 1, the PTFE filled in the holes of the intermediate layer was peeled off, and the shear strength was 5.0 M.
Pa was low.

[0059]

As described above, according to the composite material of the present invention, it is possible to sufficiently increase the bonding strength between different types of materials without deteriorating the resin material or the like or reducing the strength of the composite material itself. it can. Therefore, it is possible to provide a composite material of different materials having excellent reliability. Further, according to the method for producing a composite material of the present invention, it is possible to produce a composite material of such a dissimilar material with good reproducibility.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating a configuration of a composite material according to an embodiment of the present invention.

FIGS. 2A and 2B are diagrams showing a specific example of an intermediate layer of the composite material shown in FIG. 1, wherein FIG. 2A is a plan view and FIG. 2B is a cross-sectional view taken along line AA.

3A and 3B are diagrams showing another specific example of the intermediate layer of the composite material shown in FIG. 1, wherein FIG. 3A is a plan view, FIG. 3B is a cross-sectional view taken along line AA, and FIG. It is sectional drawing along the BB line.

FIG. 4 is a plan view showing still another specific example of the intermediate layer of the composite material shown in FIG.

5A and 5B are diagrams showing still another specific example of the intermediate layer of the composite material shown in FIG. 1, wherein FIG. 5A is a plan view and FIG. 5B is a cross-sectional view along the line AA.

FIG. 6 is a perspective view showing a partial cross section of a configuration of one specific example in which the composite material of the present invention is applied to a sliding member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... 1st member 2 ... Intermediate layer 3 ... Hole 4 ... Plate material 5 ... 2nd member 6 ... Composite material

Claims (10)

[Claims] 1. A first member, an intermediate layer joined to the first member and made of a plate having a hole, and the first member is made of a different material and constitutes the intermediate layer. A second member that is stacked while being partially filled in the hole of the plate, wherein the hole of the plate has a shape that shows a resistance to tensile stress in a direction perpendicular to the surface of the first member. A composite material comprising: 2. The composite material according to claim 1, wherein the hole of the plate material forming the intermediate layer has a first hole opened on the second member side and the first hole. And a second hole having a space that does not overlap with the first hole. 3. The composite material according to claim 1, wherein the hole of the plate material forming the intermediate layer has an opening area on the second member side smaller than an opening area on the first member side. Characteristic composite material. 4. The composite material according to claim 2, wherein the hole of the plate material has a diameter larger than that of the first hole.
Wherein the second hole and the first hole form a step hole. 5. The composite material according to claim 2, wherein the plate has a first plate having the first hole and the second hole having a diameter larger than that of the first hole. A composite material comprising: a joining material joined to a second plate so that the first hole overlaps the second hole. 6. The composite material according to claim 2, wherein the plate member includes a first plate member having the first hole and the second hole having substantially the same diameter as the first hole. A composite material comprising: a joining material in which a second plate member is joined so that the first hole and the second hole partially overlap. 7. The composite material according to claim 6, wherein the bonding material is bonded so that the first hole and the plurality of second holes partially overlap. Composite materials. 8. The composite material according to claim 1, wherein said first member is made of a metal material, and said second member is a resin material, a rubber material, and a glass having a curing temperature lower than a melting point of said metal material. A composite material comprising one type selected from materials and ceramic materials. 9. When manufacturing a composite material by laminating a first member and a second member made of a different material from the first member, the first member is provided on the first member. A step of joining a plate material having a hole exhibiting a resistance to a tensile stress in a vertical direction to a member surface to form an intermediate layer; and forming a part of the second member into a part of the plate material constituting the intermediate layer. Laminating the second member on the first member while filling the holes. 10. The method for manufacturing a composite material according to claim 9, wherein a metal material is used as the first member, and a resin material and a rubber having a curing temperature lower than a melting point of the metal material as the second member. A method for producing a composite material, comprising using one selected from a material, a glass material, and a ceramic material.