JP2021088114A - Manufacturing method for bonded body of metal base material and resin material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a bonded body of a metal element and a resin material, which can be efficiently produced even when there are a plurality of steps performed in a pressurized state. SOLUTION: A method for manufacturing a joint body of a metal base material and a resin material is a method of manufacturing a joint body 10 in which a metal base material 1 and a resin material 2 are joined, and the metal shape material. A laminating step of laminating 1 and the resin material 2 to produce a laminated body 10A in an unbonded state, an in-film placement step of arranging the laminated body 10A inside the high melting point film 4, and the high melting point film 4 A vacuuming step of pressurizing the laminated body 10A by vacuuming the inside of the laminated body 10A, a joining step of joining the laminated body 10A to prepare a bonded body 10, and a refractory film 4 from the bonded body 10 It comprises a film removing step of removing. [Selection diagram] Fig. 1

Description

The present invention relates to a method for producing a bonded body of a metal shape material and a resin material.

Metallic materials are used in the manufacture of a wide variety of industrial products such as automobiles. A bonded body in which a resin material, which is a molded body of a thermoplastic resin composition, is bonded to a metal shape material is lighter than a component made of only metal and has higher strength than a part made of only resin. Therefore, the joint is also used in electronic devices such as mobile phones and personal computers. It is also used as a building material for outer walls and the like (see Patent Document 1).

JP-A-2017-114111

However, in the above-mentioned conventional technique, the resin is sandwiched between the steel plates heated by the heating plate to heat and pressurize. After that, the load is temporarily removed, and pressurization and cooling are performed with another cooling plate. For this reason, there is a time when the steel sheet is once unloaded in the joining process, and the steel sheet heated by the unloading may warp, causing peeling of the joint portion and unjoining. In addition, two or more press mechanisms are required for heating and cooling.
On the other hand, in a general heating press device, there is one in which heating and cooling are performed by the same device. Such a device takes time to cool the heated device. Further, after cooling, it takes time to heat the device again, resulting in poor productivity.
An object of the present invention is to provide a method for producing a bonded body of a metal element and a resin material, which can be efficiently produced even when there are a plurality of steps performed in a pressurized state.

In order to solve the above problems, the present invention is a method for producing a bonded body in which a metal base material and a resin material are bonded, and the metal base material and the resin material are laminated and unbonded. A laminating step of producing a laminated body in a state, an in-film placement step of arranging the laminated body inside a refractory film, and a vacuum drawing for pressurizing the laminated body by vacuuming the inside of the refractory film. A joint of a metal body and a resin material, comprising a step, a joining step of joining the laminated bodies to prepare a joined body, and a film removing step of removing the refractory film from the joined body. Provide a manufacturing method.

The metal base material has an organic resin layer on the surface to be joined to the resin material, the joining step includes a heating step, and the metal base material is formed by melting the organic resin layer in the heating step. And the resin material are preferably heat-welded.

The joining step preferably includes a cooling step after the heating step.

Even when there are a plurality of steps performed in a pressurized state, it is possible to provide a method for producing a bonded body of a metal element and a resin material that can be efficiently produced.

It is a figure explaining the manufacturing method of the joint body of a metal element shape material and a resin material.

Hereinafter, a method for manufacturing the bonded body 10 of the metal element 1 and the resin material 2 according to the embodiment of the present invention will be described. In the manufacturing method according to the embodiment, the metal base material 1 provided with the organic resin layer 3 on the surface and the resin material 2 are overlapped with each other, and the surface and the resin material provided with the organic resin layer 3 in the metal base material 1 are overlapped. A bonded body 10 is produced in which the surfaces of 2 are joined to face each other.
It should be noted that the fact that the metal element 1 and the resin material 2 are joined means that they are in close contact with each other and do not easily peel off, for example, even if the resin material 2 is turned downward and the bonded body 10 is lifted, the resin is used. This means that the material 2 does not peel off due to its own weight.

FIG. 1 is a diagram illustrating a method of manufacturing a bonded body 10 of a metal element 1 and a resin material 2 according to an embodiment.

(Laminating process)
FIG. 1A is a diagram illustrating a laminating step in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the laminating step, the resin material 2 is arranged between the two metal body members 1 and aligned to prepare a laminated body 10A in an unbonded state.

(Metallic material 1)
The metal element 1 has an organic resin layer 3 at least on the surface in contact with the resin material 2. The type of metal constituting the metal element 1 is not particularly limited. For example, the type of the metal may be iron, a metal other than iron, or an alloy. Examples of the metal profile 1 include cold-rolled steel sheets, galvanized steel sheets, Zn-Al alloy-plated steel sheets, Zn-Al-Mg alloy-plated steel sheets, aluminum-plated steel sheets, and stainless steel sheets (austenite-based, martensite-based, ferrite-based). , Ferrite / martensite two-phase system), aluminum plate, aluminum alloy plate, copper plate, etc., and its pressed products, cast / forged products such as aluminum die cast, galvanized die cast, and cutting. Various metal members formed by processing, powder metallurgy, etc. are included. If necessary, the metal shape material 1 may be subjected to known pre-painting treatments such as degreasing and pickling.

(Organic resin layer 3)
The organic resin layer 3 improves the adhesion between the metal element 1 and the resin material 2. As the resin of the organic resin layer 3, an olefin resin such as polypropylene, a polyurethane, an acrylic resin, an acrylic / styrene resin, vinyl acetate, EVA (ethylene-vinyl acetate copolymer), and an ester resin can be used.

(Resin material 2)
The resin material 2 is not particularly limited. The resin material 2 includes a molded body and a member made of resin. The resin can be applied to those containing polyethylene resin, polypropylene resin, polybutylene terephthalate resin, polyamide resin, polyphenylene sulfide resin, acrylonitrile-butadiene-styrene resin, polyvinyl chloride resin, polycarbonate resin and the like.

(Placement process in film)
FIG. 1B is a diagram illustrating an in-film arrangement step in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the in-film arrangement step, the resin material 2 is arranged between the metal element 1 and the aligned laminate 10A is arranged in the bag-shaped high melting point film 4. As a method of arranging, a bag-shaped high melting point film 4 may be prepared and the laminated body 10A may be put therein, or sheet-shaped high melting point films 4 may be arranged above and below the laminated body 10A, respectively, and the laminated body 10A may be placed. The outer periphery of the laminated body 10A may be covered with the high melting point film 4 by welding the upper and lower melting point films 4 so as to surround the laminated body 10A.
The high melting point film 4 is a film made of a material having a melting point higher than the welding temperature (melting point of the resin constituting the organic resin layer 3) between the organic resin layer 3 of the metal forming material 1 and the resin material 2. Is shown. The melting point film 4 is, for example, a bagging film.

(Vacuum process)
FIG. 1C is a diagram illustrating a vacuuming step in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the vacuuming step, the inside of the refractory film 4 is evacuated by vacuuming. As a result, the metal element 1 and the resin material 2 are held in a pressurized state, and the aligned metal element 1 and the resin material 2 do not shift in the subsequent steps.

(Joining process)
The joining step includes a heating step, a transporting step, and a cooling step.
(Heating process)
FIG. 1D is a diagram illustrating a heating process in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the heating step, the laminate 10A held in the refractory film 4 is placed on the heating plate 11 to heat the metal profile material 1. By heating, the organic resin layer 3 provided on the joint surface of the metal shape material 1 with the resin material 2 and the resin material 2 are melted. At this time, the high melting point film 4 does not melt.

(Transport process)
FIG. 1 (e) is a diagram illustrating a transfer process in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the transfer step, the laminate 10A is transferred from the heating plate 11 to the cooling plate 12. At this time, the organic resin layer 3 is still melted, but the metal element 1 and the resin material 2 are pressurized in a aligned state, so that the positions do not shift.

(Cooling process)
FIG. 1F is a diagram illustrating a cooling step in a method of manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the cooling step, the laminate 10A is placed on the cooling plate 12 and cooled. By cooling, the molten organic resin layer 3 and the resin material 2 are cured, and a bonded body 10 in which the metal element 1 and the resin material 2 are joined is manufactured.

(Film removal process)
FIG. 1 (g) is a diagram illustrating a film removing step in a method for manufacturing a bonded body 10 of a metal element 1 and a resin material 2. In the film removing step, the refractory film 4 is removed from the outer circumference of the bonded body 10.
The joint body 10 is manufactured by the method for manufacturing the joint body 10 of the metal element 1 and the resin material 2 according to the above embodiment.

As described above, according to the embodiment, in the joining step, no load is generated after heating, so that the joining failure due to the warp of the metal element 1 and the resin material 2 does not occur.
In the embodiment, since the metal shape material 1 provided with the organic resin layer 3 is used, it is not necessary to use an adhesive for joining with the resin material 2. Therefore, the time for applying the adhesive and drying is not required, and the bonded body 10 can be manufactured in a short time.
Since the bonded body 10 can be manufactured by a general heat laminating processing line, it is not necessary to incorporate special equipment into the manufacturing line.
Further, according to the manufacturing method of the embodiment, the pressurized state is continued in the heating step, the transport step, and the cooling step, so that the alignment in each step is unnecessary.
As described above, according to the manufacturing method of the embodiment, the bonded body 10 can be manufactured in a shorter time and at a lower cost.

1 Metal element 2 Resin material 3 Organic resin layer 4 Melting point film 10 Bonded body 10A Laminated body

Claims (3)

It is a method of manufacturing a bonded body in which a metal element and a resin material are bonded.
A laminating step of laminating the metal element and the resin material to prepare a laminated body in an unbonded state, and
In-film placement step of arranging the laminate inside the high melting point film,
A vacuuming step of pressurizing the laminate by vacuuming the inside of the refractory film.
A joining step of joining the laminated bodies to prepare a joined body,
A film removing step of removing the refractory film from the bonded body,
A method for manufacturing a bonded body of a metal base material and a resin material. The metal shape material has an organic resin layer on the surface to be joined to the resin material.
The joining step includes a heating step.
By melting the organic resin layer in the heating step, the metal body material and the resin material are heat-welded.
The method for producing a bonded body of a metal body material and a resin material according to claim 1. The joining step comprises a cooling step after the heating step.
The method for producing a bonded body of a metal element and a resin material according to claim 2.

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