JP2017013404A - Composite material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite material capable of reducing manufacturing cost.SOLUTION: A composite material 1 has a substrate 10 formed by bending a band plate and a resin material 20 arranged on an outer peripheral surface 12 of the substrate 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a composite material.

  Conventionally, many inventions relating to metal-resin composite materials (hereinafter referred to as composite materials) in which a substrate is coated with a resin have been made.

  A metal such as an aluminum alloy or steel is used for the base material, and a thermoplastic resin or the like is used for the resin.

  As the thermoplastic resin, polyolefins such as polyethylene (PE) and polypropylene (PP) are used particularly from the viewpoint of environmental load. PE, PP, and the like are used for packaging materials and the like, and these waste materials can be reused.

  Furthermore, for the purpose of giving the wood tone to the coated resin, WPC (Wood-Plastic Composite) in which the resin is filled with wood powder may be used.

  This wood flour is also made from recycled raw materials that take into consideration the impact on the environment, such as using thinned wood or waste wood fragments.

  Regarding molding of a composite material, for example, Patent Document 1 (Japanese Patent No. 3130479) describes a method of bonding a wood plastic to a plate material such as an aluminum alloy or steel using a heat-resistant adhesive. Extrusion molding / injection molding is described as a molding method.

  As another method, in Patent Document 2 (Japanese Patent Laid-Open No. 2008-080753), a composite material is formed by integral extrusion molding.

  This document describes that the adhesion between the core and the covering material is improved by subjecting aluminum of the core material to alumite treatment that does not involve sealing.

  Further, in Patent Document 3 (Japanese Patent Laid-Open No. 2012-0666403), a composite material is formed by integral extrusion, but this document uses a copolymer of an α-olefin and an epoxy group-containing unsaturated monomer as an intermediate layer. The objective is to perform integral extrusion to improve the core and WPC adhesion.

The composite material is used as a building member such as an exterior as a main application.
Resin and wood powder are used for the covering material of the composite material, and additives such as weathering agents and preservatives may be contained.

  This resin and wood powder may expand due to changes in outside air temperature or water absorption, and may peel off from the metal core when expanded.

  If peeled off, when used as a building member, there is a problem that the appearance is impaired and metal corrosion is likely to occur.

  In the above prior art, the core and the resin are firmly bonded and fixed with an adhesive. This is done to eliminate the above problem.

However, the following two points can be considered as problems of these composite materials.
(1) Since the adhesive is expensive, the molded building member can also be expensive.

  (2) When the composite material is discarded, the metal of the composite material and the covering material are firmly bonded to each other, so that separation is difficult and there is a possibility of affecting the environment at the time of disposal.

  An example of a composite material that does not use an adhesive is, for example, Japanese Patent Application Laid-Open No. 2002-120333.

  In patent document 4, the compounding quantity of wood flour is set, the shrinkage | contraction after shaping | molding of a coating layer is suppressed, and peeling is prevented.

  Patent Document 5 (Japanese Unexamined Patent Application Publication No. 2014-234913) also discloses a composite material that does not use an adhesive.

  The composite material of patent document 5 is used for piping for water supply, hot water supply, and drainage, and aims at preventing peeling of the resin layer from the metal core as in the present invention.

  In patent document 5, it coat | covers with resin from the inner peripheral surface of a metal, and it is made to leak to an outer periphery. In this document, after leaking to the outer peripheral surface, a thin resin layer of about 0.5 mm to 10 mm is coated using a rolling roller.

Japanese Patent No. 3130479 JP 2008-080753 A JP 2012-0666403 A JP 2002-120333 A JP 2014-234913 A

All of the conventional composite materials have a problem of high manufacturing costs.
Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a composite material having a low manufacturing cost.

  A composite material according to one aspect of the present invention includes a base material formed by bending a strip and a resin material provided on the outer peripheral surface of the base material.

  In the composite material configured as described above, the base material is formed by bending the band plate, so that the composite material can be manufactured at low cost. Furthermore, various shapes of base materials can be easily manufactured.

  A composite material according to another aspect of the present invention has a hollow shape and includes a base material provided with holes and a resin material provided on an outer peripheral surface of the base material, and the resin material seals the holes. And it has entered into the hollow space of the base material, and at least a part of the inner peripheral surface of the base material is exposed from the resin material.

  In the composite material configured as described above, since at least a part of the inner peripheral surface of the base material is exposed from the resin material, the resin material is more than the composite material in which all the inner peripheral surface is covered with the resin material. The amount is small. As a result, the composite material can be manufactured at a low cost, and the weight can be reduced. Furthermore, even if a thermal expansion difference exists between the base material and the resin material, the difference can be absorbed. Even when the temperature of the substrate becomes high, the heat can be released from the exposed inner peripheral surface.

Preferably, the hole has a slit shape.
A composite material according to still another aspect of the present invention has a hollow shape, a base material provided with a concave portion extending in the longitudinal direction on the outer surface, and an outer peripheral surface of the base material and filling the concave portion. And a resin material.

  Since the composite material thus configured can be manufactured by a simple manufacturing method, the manufacturing cost can be reduced.

Preferably, the base material includes at least one of iron, aluminum, and a plated steel plate.
Preferably, the resin material includes wood flour.

2 is a cross-sectional view of a composite material according to Embodiment 1. FIG. 3 is a perspective view of a base material used in the composite material according to Embodiment 1. FIG. 6 is a cross-sectional view of a composite material according to Embodiment 2. FIG. 6 is a perspective view of a base material used in a composite material according to Embodiment 2. FIG. 6 is a perspective view of another base material used in the composite material according to Embodiment 2. FIG. 6 is a cross-sectional view of a composite material according to Embodiment 3. FIG. 10 is a perspective view of a base material used in a composite material according to Embodiment 3. FIG. 10 is a perspective view of another base material used in the composite material according to Embodiment 3. FIG. 10 is a perspective view of another base material used in the composite material according to Embodiment 3. FIG. 10 is a cross-sectional view of a jig used for manufacturing a composite material according to Embodiment 3. FIG. 6 is a cross-sectional view of a composite material according to Embodiment 4. FIG. 10 is a cross-sectional view of a composite material according to a fifth embodiment. FIG. 10 is a cross-sectional view of a composite material according to Embodiment 6. FIG. FIG. 10 is a cross-sectional view of a composite material according to a seventh embodiment. FIG. 10 is a cross-sectional view of a composite material according to an eighth embodiment. 10 is a cross-sectional view of a composite material according to Embodiment 9. FIG. 12 is a cross-sectional view of a composite material according to Embodiment 10. FIG. 21 is a cross sectional view of a composite material according to an eleventh embodiment. FIG. 16 is a cross-sectional view of a composite material according to Embodiment 12. FIG. (A) is a perspective view of the base material used with the composite material according to Embodiment 13, and (B) is a cross-sectional view along the line XXB-XXB in FIG. It is sectional drawing which shows resin of the inner side and the outer side. 6 is a perspective view of a composite material manufacturing apparatus according to Embodiment 2. FIG. 6 is a perspective view of a composite material manufacturing apparatus according to Embodiment 2. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 1 is a perspective view of a composite material manufacturing apparatus according to Embodiment 1. FIG. 6 is a perspective view of a composite material manufacturing apparatus according to Embodiment 3. FIG. FIG. 16 is a cross-sectional view of a composite material according to a fourteenth embodiment. It is a perspective view of the base material used with the composite material according to Embodiment 14. FIG. 16 is a cross-sectional view of a composite material according to a fifteenth embodiment.

  In the embodiment, a composite molded building member in which a metal surface is coated with a resin by extrusion molding is shown. In the embodiment, a technique for preventing peeling of the metal and the covering material is provided.

  Since the adhesive is expensive and can affect the environment at the time of disposal, the adhesiveness between the metal core and the coating layer is strengthened without using the adhesive. As a structure for that, for example, the following three types (A), (B), and (C) can be adopted.

  (A): A slit is provided in the metal core. The metal core has a discontinuous cross section. An extruded molded body in which a part of the resin to be coated enters the inner peripheral surface side of the metal core.

  (B): A slit-shaped metal as in (A) above or a continuous metal core is provided with through-holes at a predetermined interval, the coating resin passes through the hole, and the hole is closed by a mold installed in the metal. Thus, the resin is fixed.

  In the case of the slit type, the composite material can be molded by installing a metal fitting having a predetermined shape in the extrusion mold. For the continuous core type, for example, extrusion is performed with a rod inserted into the core. Change the shape and position of the dent of the insertion rod according to the position of the through hole.

(C) A core material is formed by bending a belt material.
(How to make)
The metal core may be a long sized one.

The resin may be coated while forming a plate-like coil into a slit shape in the extrusion direction.
About the timing which provides a through-hole, you may shape | mold previously or before an extruder.

You may coat | cover, using the plate coil which provided the through-hole beforehand, and shape | molding in slit shape.
This metal core is introduced into an extruder and the WPC is coated by extrusion.

Since no adhesive is used, the molded member is inexpensive.
WPC itself is introduced into the core through the through-hole and is caught by the core material, and the peeling between the coating layer and the core is improved without an adhesive.

  That is, the composite material includes a metal core material and a covering material. The metal core has a substantially square tube cross section and has a slit on one surface. The covering material is a wood-based resin made of thermoplastic resin and wood powder. The wood-based resin covers only the entire surface of the metal outer surface and the surface of the inner surface where there is a slit. The surface of the metal tube having a slit further has a through hole, and integrally covers the outer surface and the inner surface of the metal tube through the through hole.

(Embodiment 1)
As shown in FIG. 1, the composite material 1 includes a base material 10 as a metal core material, and a resin material 20 provided on the outer periphery of the base material 10 so as to contact the base material 10.

  The substrate 10 has an internal space 19. The substrate 10 has a hollow shape. The base material 10 is provided with a slit 13 extending in the longitudinal direction. The substrate 10 surrounds the internal space 19. The substrate 10 has an inner peripheral surface 11 and an outer peripheral surface 12 provided on the opposite side to the inner peripheral surface 11. The resin material 21 is in contact with a part of the inner peripheral surface 11. The resin material 21 is a resin that enters the internal space 19 from the slit 13. A part of the inner peripheral surface 11 is not covered with the resin material 21 and is exposed from the resin material 21. As the base material 10, at least one of iron, aluminum, and a plated steel plate is used.

  The resin material 20 is, for example, acrylonitrile butadiene styrene copolymer, acrylate rubber, acrylonitrile ethylene propylene rubber styrene copolymer, amorphous polyalphaolefin, atactic polypropylene, acrylonitrile styrene copolymer, acrylonitrile styrene acrylate, two Axial stretched polypropylene, cis1 / 4 polybutadiene synthetic rubber, bismaleimide triazine, cellulose acetate (cellulose acetate), cellulose acetate butyrate, cellulose acetate propionate, carboxymethylcellulose, nitrocellulose, hydrin rubber, cellulose propionate, propionic acid Cellulose, chlorinated vinyl chloride, chloroprene rubber (neoprene), casein, cellulose triacetate, diallyl Tartrate (diallyl phthalate), ethylene chlorotrifluoroethylene copolymer, ethylenediaminetetraacetic acid, ethylene ethyl acrylate, ethylene methacrylic acid, epoxy resin, ethylene propylene diene terpolymer, ethylene tetrafluoroethylene copolymer, ethylene acetic acid Vinyl copolymer, ethyl vinyl ether, ethylene vinyl alcohol copolymer, perfluoro rubber, fluorinated ethylene propylene tetrafluoroethylene-hexafluoropropylene copolymer, furan resin, flexible urethane foam, glass fiber reinforced thermoplastic resin, glass fiber reinforced plastic , High density polyethylene, high impact polystyrene, high molecular weight high density polyethylene, butyl rubber, ionomer, isophorone diisocyanate, isoprene rubber, low density polyethylene , Linear low density polyethylene, diphenylmethane diisocyanate, melamine formaldehyde, methyl methacrylate, melamine phenol formaldehyde, modified silicone, nitrile rubber, natural rubber, expanded polypropylene, polyamide (nylon), polyacrylic acid, polyallyl ether ketone, polyamideimide , Polyester alkyd resin, polyacrylonitrile, polyarylate, polyallylsulfone, polybutene-1, polybutadieneacrylonitrile, polybenzimidazole, poly-n-butyl methacrylate, polyparaphenylene benzobisoxazole, polybutadiene styrene, polybutylene terephthalate, polycarbonate, Polytrifluorochloroethylene polychlorotrifluoroethylene, direal terephthalate, Ridicyclopentadiene, polyethylene, polyether ether ketone, polyether imide, polyether nitrile, polyethylene naphthalate, polyethylene oxide, polyether sulfone, polyethylene terephthalate, phenol formaldehyde, tetrafluoroethylene perfluoroalkyl vinyl ether copolymer, polyimide, polyisobutylene, Polymethoxyacetal, polymethacrylonitrile, polymethyl methacrylate (acrylic), polymethylpentene, polyoxymethylene (acetal), polypropylene, polyphthalamide, polypropylene copolymer, polyphenylene ether, polyphenylene oxide, polyphenylene sulfide, polysulfone, Polystyrene, polysulfone, polysulfone, poly III Fluorinated ethylene chloride, polytetrafluoroethylene polytetrafluoroethylene, polytrimethylene terephthalate, polyvinyl alcohol, polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, polyvinyl chloride, vinyl chloride vinyl acetate copolymer, polyvinyl dichloride, polychlorinated Vinylidene, polyvinylidene fluoride, polyvinylidene fluoroethylene, polyvinyl fluoride, polyvinyl formal, polyvinyl isobutyl ether, polyvinyl methyl ether, polyvinyl alcohol, polyvinyl pyrrolidone, acrylonitrile styrene copolymer, styrene butadiene, styrene block copolymer, styrene butadiene rubber, Styrene butadiene styrene block copolymer, styrene ethylene butylene styrene block copolymer, styrene Tylene propylene styrene block copolymer, silicone, styrene isoprene styrene block copolymer, sheet molding compound, syndiotactic polystyrene, toluene diisocyanate, tris (nonylphenyl) phosphite, thermoplastic polyamide elastomer, thermoplastic elastomer, Thermoplastic polyester elastomer, polyimide, thermopolyolefin, triphenyl phosphate, thermoplastic polyurethane, thermoplastic vulcanized elastomer, polymethylpentene, urea formaldehyde resin, ultra high molecular weight polyethylene, unsaturated polyester, vinyl chloride, vinyl chloride ethylene, It includes any of octyl chloride vinyl acrylate, vinyl acetate vinyl acetate, Vulcan fiber, and cross-linked polyethylene.

  The resin material 20 may contain wood powder. The resin material 20 may not contain wood powder. A part of the resin material 20 seals the slit 13. A part of the resin material 20 enters the internal space 19 to form the resin material 21.

The resin material 20 covers the entire outer peripheral surface 12.
As shown in FIG. 2, the base material 10 extends in the longitudinal direction. The base material 10 has a rectangular cross section. The base material 10 is formed, for example, by bending a strip. The base material 10 is made of metal, for example. In order to manufacture the substrate at a low cost, the substrate 10 is made of, for example, an iron alloy. In order to make the base material 10 lightweight, the base material 10 is made of, for example, an aluminum alloy. The substrate 10 may be manufactured by a method such as cold or hot extrusion, drawing, casting or forging.

  The composite material 1 includes a base material 10 formed by bending a strip and a resin material 20 provided on the outer peripheral surface 12 of the base material 10.

  The composite material 1 has a hollow shape, and includes a base material 10 provided with holes and a resin material 20 provided on the outer peripheral surface 12 of the base material 10, the resin material 20 seals the holes, and The base material 10 enters the internal space 19, and at least a part of the inner peripheral surface 11 of the base material 10 is exposed from the resin material 21.

The composite material 1 configured as described above has the following effects.
(1) No adhesive is interposed between the base material 10 and the resin material 20. As a result, the composite material 1 can be formed at a low cost.

  (2) A part of the resin material 20 seals the slit 13. That is, the resin material 20 is engaged with the base material 10. As a result, the resin material 20 can be reliably fixed to the base material 10 without using an adhesive.

  (3) When the composite material 1 is used in a high temperature environment, for example, an environment irradiated with sunlight, the base material 10 also becomes high temperature. The resin material 21 enters the internal space 19 and covers a part of the inner peripheral surface 11. The other part of the inner peripheral surface 11 is exposed from the resin material 21. As a result, the inner peripheral surface 11 comes into contact with the air in the internal space 19. Heat is dissipated from the inner peripheral surface 11 to the internal space 19. Thereby, the temperature rise of the base material 10 can be suppressed. When all portions of the inner peripheral surface 11 are covered with the resin material 21, the inner peripheral surface 11 does not contact air. As a result, the temperature of the base material 11 is likely to rise.

  (4) When the composite material 1 is used in a high temperature environment and a low temperature environment, for example, when used outdoors in summer and winter, both the base material 10 and the resin material 20 expand and contract. However, the thermal expansion coefficient of the base material 10 is different from the thermal expansion coefficient of the resin material 20. As a result, a difference occurs between the expansion amount of the base material 10 and the expansion amount of the resin material 20. When all the portions of the inner peripheral surface 11 are covered with the resin material 21, it is difficult for the resin material 21 on the inner peripheral surface 11 side to absorb the above difference. As shown in FIG. 1, when the resin material 21 covers a part of the inner peripheral surface 11, the resin material 21 can freely expand and contract with respect to the inner peripheral surface 11.

  (5) A part of the inner peripheral surface 11 is not covered with the resin material 21. Compared with the composite material in which the entire inner peripheral surface 11 is covered with the resin material 21, the amount of the resin material 21 can be reduced. As a result, the composite material 1 can be reduced in weight. Furthermore, the composite material 1 can be manufactured at low cost.

  (6) When forming the base material 10 by bending a strip, the manufacturing cost of the base material 10 can be reduced. As a result, the composite material 1 can be manufactured at low cost.

(Embodiment 2)
As shown in FIGS. 3 to 5, in the composite material 1 according to the second embodiment, the base material 10 is provided with the slits 13 and the holes 14. Resin enters the internal space 19 from the slit 13 and the hole 14.

  The base material 10 shown in FIG. 5 is provided with more holes 14 than the base material 10 shown in FIG. The holes 14 may be arranged linearly or may be arranged in a staggered manner.

(Embodiment 3)
As shown in FIGS. 6 to 9, in the composite material 1 according to the third embodiment, the base material 10 is not provided with the slit 13. A hole 14 is provided in the base material 10. Resin enters the internal space 19 from the hole 14.

  The base material 10 shown in FIG. 8 is provided with more holes 14 than the base material 10 shown in FIGS. 7 and 9. The holes 14 may be arranged linearly or may be arranged in a staggered manner.

  When the composite material 1 shown in FIG. 6 is manufactured, the jig 30 shown in FIG. 10 is used in the internal space 19 of the base material 10. The jig 30 is provided with recesses 31 and 32. The base material 10 is inserted into the mold. The jig 30 is inserted into the base material 10. Resin is injected between the outer peripheral surface 12 and the mold. The resin covers the outer peripheral surface 12. The resin enters the internal space 19 from the hole 14. The resin fills the recesses 31 and 32. Thereby, the composite material 1 shown in FIG. 6 can be manufactured.

(Embodiment 4)
As shown in FIG. 11, the composite material 1 according to the fourth embodiment has a triangular cross section. The base material 10 has a triangular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided at the apex of the triangle.

(Embodiment 5)
As shown in FIG. 12, the composite material 1 according to the fifth embodiment has a circular cross section. The base material 10 has a circular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided in a part of the circular shape.

(Embodiment 6)
As shown in FIG. 13, the cross section of the composite material 1 according to the sixth embodiment has a triangular shape. The base material 10 has a triangular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided on a triangular side. Although the slit 13 is provided at the center of the side, the slit 13 may be provided at a position shifted from the center.

(Embodiment 7)
As shown in FIG. 14, the composite material 1 according to the seventh embodiment has a quadrangular cross section. Resin is filled in a path that leads from the outside to the internal space 19. This path constitutes the slit 13. In this embodiment, the cross section is rectangular, but the cross section may be triangular or round.

(Embodiment 8)
As shown in FIG. 15, the cross section of composite material 1 according to the eighth embodiment has a pentagonal shape. The substrate 10 has a pentagonal cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided at the apex of the pentagon.

(Embodiment 9)
As shown in FIG. 16, the cross-section of composite material 1 according to the ninth embodiment has a pentagonal shape. The substrate 10 has a pentagonal cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided on a pentagonal side. Although the slit 13 is provided at the center of the side, the slit 13 may be provided at a position shifted from the center.

(Embodiment 10)
As shown in FIG. 17, the cross section of composite material 1 according to the tenth embodiment has a quadrangular shape. The substrate 10 has a quadrangular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided at a rectangular apex.

(Embodiment 11)
As shown in FIG. 18, the cross section of the composite material 1 according to the eleventh embodiment has a vertically long rhombus quadrilateral shape. The substrate 10 has a quadrangular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided on a rectangular side. Although the slit 13 is provided at the center of the side, the slit 13 may be provided at a position shifted from the center.

(Embodiment 12)
As shown in FIG. 19, the cross section of the composite material 1 according to the twelfth embodiment has a horizontally long rhombus quadrilateral shape. The substrate 10 has a quadrangular cross section. The base material 10 and the composite material 1 extend in the longitudinal direction. A slit 13 is provided on a rectangular side. Although the slit 13 is provided at the center of the side, the slit 13 may be provided at a position shifted from the center.

(Embodiment 13)
As shown in FIG. 20, the base material 10 has a rectangular tube shape and extends in the longitudinal direction. Both ends of the long part or a part of the center are hollow. The length of the slit 13 is shorter than the length of the base material in the longitudinal direction. The slits 13 are not provided at both ends of the substrate 10 ((A) in FIG. 20) or at least one place other than both ends of the substrate 10. Thereby, the intensity | strength of the base material 10 is securable. The cross section of the composite material 1 according to the thirteenth embodiment has a quadrangular shape ((B) of FIG. 20). Two slits 13 face each other.

(Production method)
(Substrate 10 having slit 13 and hole 14)
The manufacturing method of the composite material 1 which has the base material 10 in which the slit 13 and the hole 14 were provided is demonstrated.

  As shown in FIGS. 21 and 22, when the resin material 20 is formed on the base material 10 provided with the slits 13 and the holes 14, a jig 100 and a mold 200 are used. The jig 100 includes a main body 101 and a top portion 102 provided on the main body 101. The main body 101 is provided with bottomed recesses 111, 112, and 113. The concave portions 111, 112, and 113 extend from the end portion 101 a of the main body 101 to the top portion 102.

  The main body 101 is provided with a cooling hole 116. The cooling hole 116 is sealed with a plug 115 near the end 101 a of the main body 101.

  Cooling water is supplied from the top 102. The cooling water is introduced into the cooling hole 116 to cool the main body 101. The cooling water that has taken the heat of the main body 101 is discharged from the top portion 102.

  The mold 200 includes a holding part 220 that holds the jig 100 and a molding part 210 into which resin is injected.

  The top portion 102 is inserted into the holding portion 220. The holding part 220 holds the top part 102. The holding unit 220 is provided with a refrigerant inlet 201 and a refrigerant outlet 202. The refrigerant inlet 201 of the jig 100 and the refrigerant inlet 201 of the holding unit are connected. The refrigerant outlet 202 of the jig 100 and the refrigerant outlet 202 of the holding unit are connected.

  Cooling water injected into the holding unit 220 from the refrigerant inlet 201 is introduced into the jig 100. The cooling water takes heat from the jig 100 and is discharged from the refrigerant outlet 202.

  The forming part 210 is adjacent to the holding part 220. The front part of the jig 100 is inserted into the molding part 210. Concave portions 111, 112, and 113 exist in the front portion of the jig 100.

  The molding part 210 is provided with a resin injection hole 211. The resin injection hole 211 is continuous with the opening 205. The opening 205 penetrates the molding part 210.

  When manufacturing the composite material, the jig 100 is inserted into the opening 205 of the mold 200 as shown in FIG. The top portion 102 of the jig 100 engages with the holding portion 220. The recesses 111, 112, 113 are arranged in the molding part 210. A gap is formed between the jig 100 and the opening 205.

  The base material 10 is inserted between the jig 100 and the opening 205. The slit fits into the narrowest neck 102a of the top 102. When the base material 10 is moved to the molding part 210 side, the recess 111 faces the slit. The recesses 112 and 113 are opposed to the hole 14.

  Resin is injected into the resin injection hole 211. The resin is injected between the inner surface of the molding part 210 that defines the opening 205 in the molding part 210 and the base material 10. Since a high pressure is applied to the resin, the resin spreads in the space in the molding part 210 so as to cover the base material 10. The resin passes through the slit 13 and the hole 14. The resin fills the recesses 111, 112, and 113. The composite material 1 according to the second embodiment can be manufactured by forming the resin materials 20 and 21 by cooling the resin.

  In the example described above, the jig 100 is cooled using water, but the jig 100 may be cooled using air. When air is used in FIG. 21, air is introduced from the refrigerant inlet 201, the plug 115 is released, and the air is released from the cooling hole 116 to the atmosphere.

(Substrate 10 having slit 13 and no hole 14)
The manufacturing method of the composite material 1 which has the base material 10 in which the slit 13 is provided and the hole 14 is not provided is demonstrated.

  As shown in FIGS. 23 to 28, when the resin material 20 is formed on the base material 10 provided with the slits 13, a jig 100 and a mold 200 are used. The jig 100 includes a main body 101 and a top portion 102 provided on the main body 101. The main body 101 is provided with a bottomed recess 111. The recess 111 extends from the end 101 a of the main body 101 to the top 102.

  Cooling water is supplied from the refrigerant inlet 201. The cooling water cools the main body 101. The cooling water that has taken the heat of the main body 101 is discharged from the top portion 102.

  The mold 200 includes a holding part 220 that holds the jig 100 and a molding part 210 into which resin is injected.

  The top portion 102 is inserted into the holding portion 220. The holding part 220 holds the top part 102. The holding unit 220 is provided with a refrigerant inlet 201. The refrigerant inlet 201 of the jig 100 and the refrigerant inlet 201 of the holding unit are connected.

  Cooling water injected into the holding unit 220 from the refrigerant inlet 201 is introduced into the jig 100. The cooling water takes the heat of the jig 100. When cooling water is used as the refrigerant, the holding part 220 is provided with a refrigerant outlet as shown in FIGS. 21 to 22, and the cooling water is discharged from the refrigerant outlet. When air is used as the refrigerant, the air is released to the atmosphere from the refrigerant outlet 202 of the jig.

  The forming part 210 is adjacent to the holding part 220. The front part of the jig 100 is inserted into the molding part 210. A concave portion 111 exists in the front portion of the jig 100.

  The molding part 210 is provided with a resin injection hole 211. The resin injection hole 211 is continuous with the opening 205. The opening 205 penetrates the molding part 210. The opening 205 (FIGS. 26 and 27) on the side where the base material 10 is inserted differs from the opening 205 (FIGS. 23 to 25) on the side where the base material 10 is discharged. The size of the opening 205 in FIGS. 26 and 27 corresponds to the size of the base material 10, and the opening 205 in FIGS. 23 to 25 corresponds to the total size of the base material 10 and the resin material 20.

  The jig 100 extends from the front surface 210a of the mold 200 to the rear surface 220a. On the rear surface 220a side, as shown in FIGS. 27 and 28, the top portion 102 fits into the hole 225 extending in the axial direction. Thereby, the jig 100 is held by the holding unit 220.

  In order to fix the jig 100 to the holding part 220, the bolt 204 and the bolt hole 203 are used. With the top portion 102 fitted into the hole 225, the bolt 204 is inserted into the bolt hole 203 provided in the top portion 102 and the holding portion 220. Thereby, the jig 100 can be fixed to the holding part 220.

  When manufacturing the composite material, the jig 100 is inserted into the opening 205 of the mold 200 as shown in FIG. The top portion 102 of the jig 100 engages with the holding portion 220. The recess 111 is arranged in the molding part 210. A gap is formed between the jig 100 and the opening 205.

  The base material 10 is inserted between the jig 100 and the opening 205. The slit fits into the narrowest neck 102a of the top 102. When the base material 10 is moved to the molding part 210 side, the recess 111 faces the slit.

  Resin is injected into the resin injection hole 211. The resin is injected between the inner surface of the molding part 210 that defines the opening 205 in the molding part 210 and the base material 10. Since a high pressure is applied to the resin, the resin spreads in the space in the molding part 210 so as to cover the base material 10. The resin passes through the slit 13. The resin fills the recess 111. The composite material 1 according to the first embodiment can be manufactured by forming the resin materials 20 and 21 by cooling the resin.

  The substrate 10 is hollow and includes a base material 10 provided with slits 13 and a resin material 20 provided on the outer peripheral surface 12 of the base material 10. The resin material 20 seals the slits 13, and the base material 10. The composite material 1 manufacturing apparatus in which at least a part of the inner peripheral surface of the base material 10 is exposed from the resin material 21 is provided with an opening 205 extending from one end to the other end. A mold 200 and a jig 100 which is fixed in the opening 205 of the mold 200 and can be fitted into the slit 13 are provided. The jig 100 is provided with a recess corresponding to the slit. The base material 10 is inserted into the opening 205, the slit 13 is fitted into the jig 100, the recess 111 is disposed in the internal space 19, and the mold inner peripheral surface defining the opening in a state facing the slit 13 and the base material The resin material 20 is injected between the two. The resin material 20 covers the outer peripheral surface 12 of the base material 10. The resin material 20 is injected into the internal space from the slit 13. The resin material 21 fills the recess 111.

(Substrate 10 not having slit 13 but having hole 14)
As shown in FIG. 29, the base material 10 is not provided with a slit. The jig 100 has a dimension that can be inserted into the internal space 19 of the base material 10. Both the base material 10 and the jig 100 have a length L.

  With the jig 100 inserted in the internal space 19 of the base material 10, the outer peripheral surface 12 of the base material 10 is covered with resin. By pressurizing the resin, the resin is injected from the hole 14 to the internal space 19 side. The resin fills the recess 111. The composite material 1 according to the third embodiment can be manufactured by forming the resin materials 20 and 21 by cooling the resin.

(Embodiment 14)
As shown in FIGS. 30 and 31, the composite material 1 according to the fourteenth embodiment has a hollow shape, and the outer peripheral surface 12 is provided with a base material 10 provided with recesses 17 and 18 extending in the longitudinal direction, and a base material. The resin material 20 and 25 which covers the outer peripheral surface 12 of 10 and is filled with the recessed parts 17 and 18 are provided.

  Concave portions 17 and 18 are provided on the surface of the substrate 10. The recesses 17 and 18 do not reach the internal space 19. The recesses 17 and 18 extend in the longitudinal direction. The recesses 17 and 18 are filled with a resin material 25. The resin material 25 has the same composition as the resin material 20 covering the outer peripheral surface 12.

  The shape of the recesses 17 and 18 is not limited to that shown in FIGS. Further, in FIGS. 30 and 31, the recesses 17 and 18 are provided on the four sides of the base material 10, but it is sufficient that the recesses are provided on at least one side.

  Furthermore, the cross-sectional shape of the substrate 10 is not limited to the quadrangle shown in FIG. 30, but may be various shapes such as a circular shape and a polygonal shape.

(Embodiment 15)
As shown in FIG. 32, the base material 10 may have a flat shape and have the slits 13. Such a composite material 1 can be used as a building material for ceilings, for example. This composite material 1 can be manufactured by a manufacturing apparatus shown in FIG.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention can be used in the field of composite materials.

  DESCRIPTION OF SYMBOLS 1 Composite material, 10 base material, 11 inner peripheral surface, 12 outer peripheral surface, 13 slit, 14 hole, 17, 18, 31, 32, 111, 112, 113 recessed part, 19 internal space, 20, 21, 25 resin material, 30, 100 jig, 101 body, 101a end, 102 top, 102a neck, 115 plug, 116 cooling hole, 200 mold, 201 refrigerant inlet, 202 refrigerant outlet, 203 bolt hole, 204 bolt, 205 opening, 210 Molding part, 210a front surface, 211 resin injection hole, 220 holding part, 220a rear surface.

Claims (6)

A base material formed by bending a strip,
The composite material provided with the resin material provided in the outer peripheral surface of the said base material. A base material that is hollow and provided with holes;
A resin material provided on the outer peripheral surface of the substrate;
The composite material, wherein the resin material seals the hole and enters the hollow space of the base material, and at least a part of the inner peripheral surface of the base material is exposed from the resin material.   The composite material according to claim 2, wherein the hole has a slit shape. A base material that is hollow and provided with a recess extending in the longitudinal direction on the outer surface;
A composite material comprising a resin material that covers an outer peripheral surface of the base material and fills the concave portion.   The composite material according to claim 1, wherein the base material includes at least one of iron, aluminum, and a plated steel plate.   The composite material according to claim 1, wherein the resin material includes wood flour.