JP4487110B2 - Laminated body structure and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a laminate and a manufacturing method thereof, and more specifically, when a metal material and a resin material having different linear expansion coefficients are laminated and integrally molded, generation of cracks generated after molding of the resin material is caused. The present invention relates to a structure of a laminate that is effectively prevented and a manufacturing method thereof.
[0002]
[Prior art]
When a resin material is formed by coating a rod-like or pipe-like metal material or a plate-like metal material, the resin material is generally laminated directly on the surface of the metal material.
[0003]
However, a molding method (for example, forming on the outside of a pipe or rod-shaped metal, excluding the cross section) that forms a metal material with a resin material to cover the entire surface or a surface in only one direction and covering the surface in two directions is similarly formed. Then, it is heat-molded as it is.
[0004]
[Problems to be solved by the invention]
Then, the linear expansion coefficient of the resin material which is an organic polymer material is 70 × 10 ⁻⁶ K ^−1, which is about 10 times larger than the linear expansion coefficient of the metal material of 8 × 10 ⁻⁶ K ^−1. .
[0005]
As a result, the resin material and the metal material that have expanded during heating coincide with each other at the bonding interface in the curing or melting temperature range of the matrix resin, but the resin material contracts more as the cooling starts (so-called curing shrinkage). . This is because a resin material having a higher curing or melting temperature has a higher degree of shrinkage, and in an extreme case, a crack occurs in the resin material. This is often the case for metal shapes that are not tapered with the same cross-sectional dimension.
[0006]
An object of the present invention is to provide a structure of a laminate that effectively prevents the generation of cracks after molding at the bonding interface when a metal material and a resin material having different linear expansion coefficients are laminated and integrally molded, and its manufacture It is to provide a method.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the structure of the laminate of the present invention includes a rubberized cloth in which at least one surface of a woven fabric of fibers is coated with a rubber-like elastic material on a boundary surface between a metal material and a resin material. The gist is that the buffer layer is integrally formed with the buffer layer interposed. By comprising in this way, generation | occurrence | production of the crack which arises after shaping | molding in a bonding interface can be prevented effectively.
[0008]
A method of manufacturing a laminate of the invention, the external surface surface of the metallic material, coated with a buffer layer coated with a rubber-like elastic material at least one surface of the woven fabric of textiles, on the buffer layer The gist is to cover and integrally mold the resin material.
[0009]
This invention is constructed as described above, the interface between the metal and resin materials, is allowed to integrally formed interposing rubberized fabric coated on one or both sides of the woven textiles with rubber-like elastic material As a result, when a metal material and a resin material having different linear expansion coefficients are laminated and integrally molded, it is possible to effectively prevent the occurrence of cracks after molding at the bonding interface.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0011]
FIG. 1 shows a perspective view of a laminated body in which a resin material such as fiber reinforced plastic (FRP) is laminated on a metal rod showing a first embodiment of the present invention. This laminated body is composed of a metal rod 1 and a resin material 2. in the molding interface X between, it is integrally formed by interposing a buffer layer 3 which is a rubber coated fabric obtained by coating at least one surface with rubber-like elastic material of the woven fabric of the textiles.
[0012]
The metal rod 1 may be a solid round bar as shown in FIG. 1 or may be a hollow pipe. The metal material may be aluminum, iron, titanium, copper, etc. It is also possible to form with a metal material.
[0013]
The woven fabric of fibers constituting the buffer layer 3 is made of aromatic polyamide fiber (aramid fiber), polyethylene terephthalate (PET) fiber, etc., and the rubber-like elastic material is NBR, BR, SBR, NR, IR, EPDM, Consists of CR.
[0014]
The type and thickness of the woven fabric and rubber are selected depending on the size of the object to be molded, the curing temperature, and the like.
[0015]
Furthermore, the resin material 2 uses a thermoplastic resin or a thermosetting resin alone or a mixture with a thermoplastic resin, or a thermoplastic resin or a thermosetting resin alone or a mixture with a thermoplastic resin. A fiber reinforced plastic material used as a matrix resin is used.
[0016]
The matrix resin is not particularly limited, and may be a thermosetting resin such as an epoxy resin, a phenol resin, or a bismaleimide resin, or a thermoplastic resin such as a polyester resin, a polyamide resin, or a polyimide resin, or a mixture thereof.
[0017]
Also, FIG. 2 shows a second perspective view of a laminate illustrating an embodiment of the present invention, this embodiment includes a square cross-section shape of the metal rod 1, the molding surface X of the resin material 2, the textiles the buffer layer 3 which is a rubber coated fabric obtained by coating at least one surface with rubber-like elastic material of the woven fabric in which is interposed, the metal rod 1 may be of solid or hollow.
[0018]
The configuration of the rubberized cloth of the buffer layer 3 is the same as that in the first embodiment.
[0019]
Method for producing a laminate of the rod-shaped as described above, covering at least one surface of the woven fabric textiles buffer layer 3 coated with rubber-like elastic material, the external surface surface of the metal rod 1 (metal material) Then , the resin material 2 is coated thereon and cured at room temperature, or put in an oven or the like and cured by heating.
[0020]
As the resin material 2, at least one of a thermoplastic resin and a thermosetting resin is used, or a fiber reinforced plastic material using at least one of a thermoplastic resin and a thermosetting resin as a matrix resin is used.
[0021]
For example, the metal rod 1 having a diameter of 40 mm and the molding interface X between the resin material 2 having a thickness of 40 mm covering the outer peripheral surface thereof are integrally molded with a buffer layer 3 having a thickness of 0.2 to 0.5 mm interposed.
[0022]
With this configuration, when the two types of materials having completely different linear expansion coefficients such as the metal rod 1 and the resin material 2 are laminated and molded, the so-called buffer layer 3 interposed in the molding interface X is so-called. The occurrence of cracks in the resin material 2 can be suppressed by the cushion effect.
[0023]
【The invention's effect】
Even when two types of materials having completely different linear expansion coefficients are laminated and molded as described above, the present invention prevents cracks in resin materials such as fiber reinforced plastics by the so-called cushioning effect of the buffer layer interposed at the molding interface. There is an effect that generation can be suppressed.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a resin material is laminated on a metal bar according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a laminated body showing a second embodiment of the present invention.
[Explanation of symbols]
1 Metal rod 2 Resin material 3 Buffer layer X Molding interface

Claims (6)

In the structure of the laminate formed by laminating the entire surface of the metal material or the other surface leaving the surface in one direction covered with the resin material,
Rubber by interposing a buffer layer Ri formed by integrally formed, the buffer layer, where the at least one surface of the woven fabric of fibers coated with a rubber-like elastic material at the interface between the metal material and the resin material The structure of a laminate made of a stretch fabric .   The structure of the laminate according to claim 1, wherein the resin material is made of at least one of a thermoplastic resin and a thermosetting resin. The resin material, the structure of the laminate according to at least one of the thermoplastic resin and a thermosetting resin to claim 1 is a fiber-reinforced plastic material and the matrix resin. In the manufacturing method of the laminate, in which the entire surface of the metal material or the other surface is left so as to be covered with the resin material while leaving the surface in one direction,
The external surface surface of the metallic material, coated with a buffer layer coated with a rubber-like elastic material at least one surface of the woven fabric of textiles, integrally molded of resin material is coated on the buffer layer A manufacturing method of a layered product. The method for producing a laminate according to claim 4 , wherein the resin material uses at least one of a thermoplastic resin and a thermosetting resin. The resin material, method for producing a laminate according to claim 5, at least one of the thermoplastic resin and a thermosetting resin using a fiber-reinforced plastic material as a matrix resin.

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