WO2014112506A1 - Procédé de production d'objet lié métal-résine, et objet lié métal-résine - Google Patents

Procédé de production d'objet lié métal-résine, et objet lié métal-résine Download PDF

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Publication number
WO2014112506A1
WO2014112506A1 PCT/JP2014/050531 JP2014050531W WO2014112506A1 WO 2014112506 A1 WO2014112506 A1 WO 2014112506A1 JP 2014050531 W JP2014050531 W JP 2014050531W WO 2014112506 A1 WO2014112506 A1 WO 2014112506A1
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Prior art keywords
resin
metal
bonding
welding
bonding layer
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PCT/JP2014/050531
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English (en)
Japanese (ja)
Inventor
正憲 遠藤
祥成 武村
原田　聡
奈保 金子
めぐみ 佐藤
栄一郎 中島
圭司 西村
諒 吉田
令子 高澤
みゆき 吉田
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日本軽金属株式会社
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Priority to JP2014557473A priority Critical patent/JP6079791B2/ja
Priority to CN201480005218.4A priority patent/CN104936763B/zh
Publication of WO2014112506A1 publication Critical patent/WO2014112506A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8215—Tensile tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin

Definitions

  • the present invention provides a metal-resin bonded body for manufacturing a metal-resin bonded body in which a metal member and a resin member made of a thermoplastic resin are bonded by thermal welding and the metal member and the resin member are integrated.
  • the present invention relates to a method and a metal-resin joined body produced by this method.
  • thermoplastic resins For joining thermoplastic resins, methods using an external heat source such as hot air welding, hot plate welding, laser welding, electromagnetic heating methods such as high frequency welding, electric heating methods such as hot wire welding, vibration welding, spin welding, etc. , A method that uses frictional heat generation such as ultrasonic welding, a method that uses the retained heat of a secondary injection resin such as injection welding, and so on. These heat welding techniques are known, and are used in various applications depending on the characteristics of each heat welding technique.
  • a method of bonding under pressure using an adhesive or the metal member is inserted into an injection mold and inserted.
  • the mainstream method is to inject a molten thermoplastic resin toward the surface of the metal member, and simultaneously join the metal member and the resin member when molding the resin member, and use the technique of thermal welding.
  • the following proposals have been seen, but sufficient studies have not yet been made.
  • Patent Document 1 when a resin material made of a thermoplastic resin having a thickness of 0.1 mm or more and a metal material having a thickness of 0.1 mm or more are joined, a resin material is joined to the metal material.
  • a resin thin film having a film thickness of 0.1 to 50 ⁇ m made of a thermoplastic resin compatible with the thermoplastic resin of the resin material is laminated on the surface, and the resin thin film of the metal material and the resin material are overlapped with each other to form a metal material.
  • the cylindrical rotary tool is pressed from the side and rotated. At this time, the frictional heat generated between the rotary tool and the metal material is exchanged between the resin material in contact with the metal material and the resin thin film of the metal material via the metal material.
  • bonding is performed by transmitting between the joining surfaces and mixing the two.
  • Patent Document 2 a metal body having a lower melting point than that of the thermoplastic resin body is brought into surface contact with the thermoplastic resin body, and ultrasonic vibration is applied to the metal body to melt the metal body and soften the thermoplastic resin body. Then, a method has been proposed in which a molten metal body is diffused into a softened thermoplastic resin body to join the metal body and the thermoplastic resin body.
  • the present inventors joined a metal member and a resin member made of a thermoplastic resin to manufacture a metal-resin joined body in which the metal member and the resin member are integrated with a simpler method.
  • a resin bonding layer having a predetermined film thickness is previously formed on the metal member side.
  • an object of the present invention is to provide a simpler and more versatile method for producing a metal-resin joined body in which a metal member and a resin member made of a thermoplastic resin are integrated. Stable joint strength can be imparted between the joint surfaces between the metal and the resin, and the metal member of the metal-resin joined body is not damaged and the subsequent of the obtained metal-resin joined body. It is an object of the present invention to provide a method for producing a metal-resin bonded body that does not cause problems such as cracking in processing such as pressing and bending.
  • Another object of the present invention is to provide a metal-resin bonded body manufactured by such a method, having a stable bonding strength between bonding surfaces and excellent in properties such as appearance.
  • the present invention is a method of manufacturing a metal-resin bonded body by bonding a metal member and a resin member made of a thermoplastic resin, and a thermoplastic having compatibility with the resin member in advance on the bonding surface of the metal member.
  • a metal-resin bonded body characterized by laminating a resin bonding layer having a thickness of 0.01 to 9 mm made of a resin, and bonding the bonding surface between the resin bonding layer of the metal member and the resin member by heat welding. It is a manufacturing method.
  • the present invention is a metal-resin bonded body obtained by such a method.
  • the metal member those made of various metal materials can be used depending on the use of the metal-resin assembly to be produced.
  • an aluminum member made of aluminum or an aluminum alloy, or iron or iron alloy Or iron members made of alloy steel, etc., copper members made of pure copper, high copper alloys, brass, bronze, copper nickel alloys, etc., titanium members made of titanium or titanium alloys, etc., magnesium members made of magnesium or magnesium alloys, etc. can be mentioned.
  • the aluminum member has excellent conductivity, is lightweight and excellent in workability and heat dissipation, and can be suitably used for many applications.
  • the resin member used in the present invention is not particularly limited as long as it is a thermoplastic resin and can be melted or softened under heating.
  • Polyethylene, polypropylene, polystyrene, ABS resin, AS resin, polyvinyl chloride, acrylic Resins, polyvinyl acetate, polyamide resins, polyacetals, polyester resins, etc. can be exemplified, and preferably various kinds of materials because they are inexpensive, excellent in handling properties, easy to melt at low temperatures and excellent in workability.
  • An olefin resin more preferably an olefin resin such as polyethylene or polypropylene.
  • polyethylene has a low processing deformation temperature
  • the processing temperature at the time of joining can be lowered
  • the deformation surface of the joined surface of the joined body can be easily deformed
  • polypropylene has a high tensile strength and is a metal.
  • a high bonding strength can be stably imparted between the bonding surfaces between the member and the resin member.
  • the resin material for forming the resin bonding layer laminated on the bonding surface of the metal member is not particularly limited as long as it is a thermoplastic resin that is compatible with the resin member and melts or softens under heating. However, it is preferable to use various olefin-based resins because they are inexpensive, excellent in handling properties, easy to melt at low temperatures and excellent in workability. It is a resin, more preferably an olefin resin such as polypropylene or polyethylene.
  • the melting point difference between the melting point of the resin member and the melting point of the resin bonding layer is preferably 100 ° C. or less, and more preferably, the melting point difference is 50 ° C. or less.
  • the difference in melting point between the resin member and the resin bonding layer is 100 ° C. or more, the viscosity of the resin bonding layer is lowered before the resin member is melted when the pressure is applied to bond the resin member and the resin bonding layer. There is a concern that the resin bonding layer may flow out of the bonding surface before the layers are compatible.
  • the film thickness of the resin bonding layer is less than 0.1 mm, or conversely, if the film thickness is greater than 9 mm, it is sufficient between the bonding surfaces between the metal member and the resin member. May not be able to obtain a good bonding strength.
  • the reason why sufficient bonding strength cannot be obtained when the film thickness is less than 0.1 mm is not clear, but the film thickness of the resin bonding layer is thin and sufficient heat insulation effect does not occur, and heat welding is performed. During this process, the heat supplied between the joining surfaces easily flows out to the metal member side having excellent thermal conductivity, and is necessary and sufficient for joining between the joining surfaces between the resin joining layer of the metal member and the resin member.
  • the ultrasonic welding when the film thickness of the resin bonding layer is less than 0.01 mm, or conversely, when the film thickness is greater than 1 mm, the bonding between the metal member and the resin member is performed. In some cases, sufficient bonding strength cannot be obtained between the surfaces.
  • the reason why sufficient bonding strength cannot be obtained when the film thickness is less than 0.01 mm is not clear, but the film thickness of the resin bonding layer is thin and sufficient heat insulation effect does not occur, and heat welding is performed. During this process, the heat supplied between the joining surfaces easily flows out to the metal member side having excellent thermal conductivity, and is necessary and sufficient for joining between the joining surfaces between the resin joining layer of the metal member and the resin member.
  • the thickness of the resin bonding layer is less than 0.05 mm, or conversely, if the thickness is greater than 1 mm, the bonding surface between the metal member and the resin member In some cases, sufficient bonding strength cannot be obtained.
  • the reason why a sufficient bonding strength cannot be obtained when the film thickness is thinner than 0.05 mm is that the melting heat of the molten resin that has reached the bonding surface diffuses to the metal member side having excellent thermal conductivity.
  • the reason why sufficient bonding strength cannot be obtained when the film thickness is thicker than 8 mm is that the resin bonding layer is not uniformly bonded to the metal member, so that high bonding strength is obtained when the resin member is bonded thereafter. It is considered impossible.
  • the resin bonding layer is laminated on the bonding surface of the metal member.
  • a method for forming the resin bonding layer at this time is as follows. There is no particular limitation as long as the resin bonding layer having a thickness of 0.01 to 9 mm can be formed.
  • a resin sheet made of a thermoplastic resin having compatibility with the resin member is bonded to the bonding surface of the metal member. It may be formed.
  • the laminate bonding method of forming a resin bonding layer by bonding a resin sheet to a bonding surface of a metal member can reduce the cost of a resin bonding layer having a desired film thickness by using a resin sheet having a desired film thickness.
  • the term “laminate adhesion” means that a resin sheet made of a thermoplastic resin is laminated on the surface of a metal member at a temperature not lower than the glass transition temperature and lower than the melting point under heat and pressure.
  • a hydration film is formed by cleaning the joining surface of the metal member with an acid aqueous solution and / or an alkaline aqueous solution, or treating the joining surface of the metal member in pure water or an alkaline solution at 50 ° C. or higher.
  • Hydration treatment zincate treatment that forms a zincate film by treating the joint surfaces of metal members in a zinc-containing alkaline solution, and trivalent that forms a chromate film by treating in a phosphate chromate solution at 50 ° C or higher
  • a pretreatment consisting of one or two or more treatments selected from chromate treatment or the like is preferably performed.
  • a metal member is immersed in an acid aqueous solution, then washed with water, then immersed in an alkaline aqueous solution, again immersed in an acid aqueous solution, and then washed with water. And a method of washing with a volatile organic solvent such as acetone.
  • a hydration treatment for forming a hydrated film on the joint surface include a method of treating with pure water at 70 ° C. or higher.
  • specific examples of the zincate treatment for forming a zinc-containing film on the joint surface include, for example, a method of treating with an alkaline zinc-containing solution.
  • specific examples of the trivalent chromate treatment for forming a trivalent chromate film on the joint surface include a method of treating with a phosphoric acid chromate treatment solution.
  • the above-mentioned cleaning treatment is applied as a pretreatment to the joint surface before laminating, and in addition to the washing treatment, the hydration treatment, zincate treatment, It is preferable to perform a valent chromate treatment to form a hydrated film or a zinc-containing film, whereby the adhesion between the bonding surface of the aluminum member and the resin bonding layer can be further increased.
  • the reason why the adhesion is improved by performing the pretreatment as described above is not necessarily clear, but is included in the OH group and the resin bonding layer present in the outermost layer of the hydrated film, zincate film, and trivalent chromate film.
  • the metal member prepared as described above is joined by so-called thermal welding, where the joint surface between the resin joint surface and the resin member of the metal member is heated and compatibilized to join them.
  • a metal-resin bonded body is integrally manufactured.
  • vibration welding spin Heating by frictional heating such as welding, ultrasonic welding, etc., heating using an external heat source such as laser welding, hot press welding, hot air welding, hot plate welding, electromagnetic heating such as high frequency welding, electric heating such as hot wire welding, etc.
  • the metal member be resin-bonded A joining method in which the joining surfaces of the layer and the resin member are pressed against each other, frictional heat is generated by relative motion, and the frictional heat is heated and compatibilized to join them. It is preferable that either one surface is heated by laser irradiation between the joint surfaces with the member to make them compatible and joined, and among these joining methods by frictional heat generation, the joining time is short and the productivity is low. From the viewpoint that the appearance of the bonded surface after bonding is high or is difficult to be impaired, a bonding method by vibration welding, ultrasonic welding or injection welding is more preferable.
  • the above-described joining method by vibration welding is set in the vibration welding machine by superimposing the portions (joint surfaces) where the resin joining layer and the resin member of the metal member prepared as described above are to be joined to each other.
  • a reciprocating vibration having a predetermined frequency and a predetermined maximum amplitude is applied to the metal member side or the resin member side, and frictional heat generated between the joining surfaces by the reciprocating vibration is applied.
  • the bonding surface between the resin bonding layer of the metal member and the resin member is heated, and the thermoplastic resin of the resin bonding layer and the resin member is made compatible to be bonded.
  • the above-described joining method by ultrasonic welding is performed by superposing the portions (joining surfaces) where the resin joining layer and the resin member of the metal member prepared as described above are to be joined to each other.
  • the electrical signal amplified by the oscillator is input to the piezo-electric element of the vibrator, and the electrical signal is converted into mechanical vibration energy by the piezo-electric element.
  • the mechanical vibration energy is converted and transmitted between the joint surface between the resin joint layer of the metal member and the resin member via the horn of the resonator, and the resin joint layer of the metal member is generated by frictional heat generated between the joint surfaces.
  • the bonding surfaces of the resin member and the resin member are heated to make the resin bonding layer and the thermoplastic resin of the resin member compatible with each other.
  • This ultrasonic welding is advantageous for producing small and precise products.
  • This vibration welding has almost no adverse effect such as damage upon joining to both the metal member and the resin member, and is advantageous when manufacturing a metal-resin joined body having a relatively large weight and volume. It is.
  • the above-mentioned joining method by injection welding is performed by setting the metal member prepared as described above to a resin mold in an injection molding apparatus, then injecting molten resin, and heat of the molten resin.
  • This is a method of joining by melting and compatibilizing the joining layer.
  • the greatest feature of injection welding is that the cycle time is overwhelmingly shorter than other welding methods.
  • the applied operating conditions depend on the type and physical properties of the thermoplastic resin forming the resin joining layer of the metal member and the resin member. Determined and set.
  • the time for applying the reciprocating vibration is usually 0.2 seconds to 60 seconds, preferably Is preferably not shorter than 0.2 seconds and not longer than 15 seconds. If the vibration application time is shorter than 0.2 seconds, sufficient bonding strength may not be obtained.
  • the strength does not increase further, the resin between the joint surfaces melts completely, flows out of the joint surface and becomes burrs, and as a result, the appearance defect of the joint and the thickness of the resin joint cannot be controlled. May occur.
  • the resin bonding layer of the metal member and the resin member are thermally welded by injection welding, if the resin member is PP, a PP resin member such as a cylinder temperature of 230 ° C. and a mold temperature of 50 ° C. is generally injection molded. It is possible to join within the conditions.
  • a metal-resin bonded body in which a metal member and a resin member made of a thermoplastic resin are integrated when manufacturing a metal-resin bonded body in which a metal member and a resin member made of a thermoplastic resin are integrated, it is more simple and versatile, and provides a stable bonding strength between bonded surfaces.
  • a metal-resin bonded body having a stable bonding strength between bonding surfaces and excellent in appearance and other characteristics at a low cost when manufacturing a metal-resin bonded body in which a metal member and a resin member made of a thermoplastic resin are integrated.
  • 1A and 1B are a side view and a plan view for explaining metal members prepared in Examples and Comparative Examples of the present invention.
  • FIG. 2 is a side view and a plan view for explaining test pieces (metal-resin bonded bodies) prepared in Examples and Comparative Examples of the present invention.
  • FIG. 4 is an explanatory diagram for explaining a fracture mode generated in a test piece in a shear tensile strength test performed in Examples and Comparative Examples of the present invention.
  • Examples 1 to 13 and Comparative Examples 1 to 7 >> Hereinafter, based on an Example and a comparative example, the manufacturing method of a metal-resin conjugate
  • an aluminum plate (aluminum member) made of an aluminum alloy plate (JIS A5052-H34) having a size of width 30 mm ⁇ length 90 mm ⁇ thickness 3 mm is used as the metal member.
  • An olefin sheet having a width of 30 mm, a length of 90 mm and a thickness of 0.1 to 10 mm as a resin sheet for forming a resin bonding layer to be laminated on the bonding surface of the aluminum member (trade name: ADMER, manufactured by Mitsui Chemicals, Inc.)
  • a polypropylene molded plate material (PP molded body) having a size of 30 mm width ⁇ 90 mm length ⁇ 3 mm thickness was used as the resin member.
  • Pretreatment P1 of aluminum plate First, the aluminum plate was immersed in a 30 wt% nitric acid aqueous solution at room temperature for 5 minutes, then sufficiently washed with ion exchange water, then immersed in a 5 wt% sodium hydroxide solution at 50 ° C. for 1 minute, and further washed with water. A pretreatment was performed by immersing in a 30 wt% nitric acid aqueous solution at room temperature for 3 minutes and washing with water.
  • Pretreatment of aluminum plate P2 After the pretreatment P1 was completed, a hydration treatment was performed in which the aluminum plate was further immersed in pure water at 95 ° C. for 1 minute.
  • Examples 14 and 15 and Comparative Examples 8 and 9 except that the joining method was changed to the ultrasonic welding shown above, Examples 1 to 13 including the shear tensile strength test and the deep drawability evaluation test were used. It carried out similarly.
  • Table 2 shows the evaluation results of the shear tensile strength test and the deep drawability evaluation test.
  • Example 18 to 20 and Comparative Example 10 the same procedure as in Examples 1 to 17 was performed, including the shear tensile strength test and the deep drawability evaluation test, except that the joining method was changed to the injection welding shown above. did.
  • Table 3 shows the evaluation results of the shear tensile strength test and the deep drawability evaluation test.
  • the fracture mode was A, and sufficient shear tensile strength was not obtained. In contrast, in Examples 18 to 20, sufficient strength was obtained in both the shear tensile strength and the deep drawability.
  • the film thickness of the resin joining layer is as follows. It was found that the range of 0.05 to 8 mm is suitable.
  • the method for producing a metal-resin bonded body of the present invention is a simple and versatile heat welding process in which a metal member and a resin member are integrated and a metal-resin bonded body having stable bonding strength is easily industrially produced. Can be manufactured.
  • the metal-resin bonded body of the present invention has a stable bonding strength at the bonding surface and is excellent in appearance and other characteristics, so it can be used for various sensor parts for automobiles, parts for home appliances, parts for industrial equipment. It can utilize suitably for manufacture of various components, such as.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention concerne un procédé de production d'un objet lié métal-résine dans lequel l'élément métallique a été réuni avec l'élément de résine constitué d'une résine thermoplastique, le procédé étant plus simple et versatile, étant apte à conférer une force de liaison stable aux surfaces liées de l'élément métallique et de l'élément de résine, et n'occasionnant pas d'endommagement, etc. à l'élément métallique, etc. de l'objet lié métal-résine. Le procédé, servant à produire un objet lié métal-résine par liaison d'un élément métallique à un élément de résine constitué d'une résine thermoplastique, comprend : la superposition au préalable d'une couche de liaison de résine qui comprend une résine thermoplastique ayant une compatibilité avec l'élément de résine et a une épaisseur comprise entre 0,01 et 9 mm, sur la surface de l'élément métallique qui est à lier ; et le chauffage des surfaces à lier de l'élément de liaison de résine de l'élément métallique et de l'élément de résine afin de compatibiliser et lier la couche de liaison de résine et l'élément de résine.
PCT/JP2014/050531 2013-01-18 2014-01-15 Procédé de production d'objet lié métal-résine, et objet lié métal-résine WO2014112506A1 (fr)

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CN105835303A (zh) * 2014-12-12 2016-08-10 罗伯特·博世有限公司 用于借助中间层建立金属构件和塑料包封之间的密封连接的方法
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US10486391B2 (en) * 2016-12-26 2019-11-26 Honda Motor Co., Ltd. Bonded structure and method for manufacturing the same
WO2021059996A1 (fr) 2019-09-26 2021-04-01 東亞合成株式会社 Composition adhésive et procédé de collage
WO2021060000A1 (fr) 2019-09-26 2021-04-01 東洋紡フイルムソリューション株式会社 Corps lié pour pile à combustible, et stratifié
WO2021059998A1 (fr) 2019-09-26 2021-04-01 東洋紡フイルムソリューション株式会社 Stratifié
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WO2019131046A1 (fr) * 2017-12-28 2019-07-04 株式会社デンソー Article moulé en résine et son procédé de fabrication, capteur de quantité physique et son procédé de fabrication, composant d'insert et son procédé de fabrication, et système de fabrication d'article moulé en résine et procédé de fabrication d'article moulé en résine utilisant celui-ci
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DE102019129591A1 (de) * 2019-11-04 2021-05-06 HELLA GmbH & Co. KGaA Verfahren zum Fügen einer thermoplastischen Folie mit einem metallischen Bauteil
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JP2016117194A (ja) * 2014-12-19 2016-06-30 三菱エンジニアリングプラスチックス株式会社 樹脂金属複合体及びその製造方法
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JP2018114670A (ja) * 2017-01-18 2018-07-26 日新製鋼株式会社 塗装鋼板と樹脂材との複合体の製造方法
CN113490588A (zh) * 2019-03-08 2021-10-08 睦月电机株式会社 金属树脂接合体的制造方法
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WO2021060000A1 (fr) 2019-09-26 2021-04-01 東洋紡フイルムソリューション株式会社 Corps lié pour pile à combustible, et stratifié
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JPWO2014112506A1 (ja) 2017-01-19

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