JP2005104132A - Method for joining fluorine resin material - Google Patents

Method for joining fluorine resin material Download PDF

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Publication number
JP2005104132A
JP2005104132A JP2004213382A JP2004213382A JP2005104132A JP 2005104132 A JP2005104132 A JP 2005104132A JP 2004213382 A JP2004213382 A JP 2004213382A JP 2004213382 A JP2004213382 A JP 2004213382A JP 2005104132 A JP2005104132 A JP 2005104132A
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Japan
Prior art keywords
fluororesin material
fluororesin
laser
cylindrical
materials
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JP2004213382A
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Japanese (ja)
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Jun Hayakawa
順 早川
Kenichi Aoki
健一 青木
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Fine Device Kk
Fine Device Co Ltd
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Fine Device Kk
Fine Device Co Ltd
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Priority to JP2004213382A priority Critical patent/JP2005104132A/en
Publication of JP2005104132A publication Critical patent/JP2005104132A/en
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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
    • 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
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission 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
    • B29C65/14—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
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning 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
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or 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
    • 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
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
    • 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
    • B29C66/72—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
    • 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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7316—Surface properties
    • B29C66/73161—Roughness or rugosity
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C65/1687—Laser beams making use of light guides
    • 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
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    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of stably joining fluorine resin materials by irradiation with a laser beam. <P>SOLUTION: The method for joining a fluorine resin material comprises as follows; a treatment for giving a rough surface is applied to the surface of a laser-penetrating first flat fluorine resin material 12 and to the back surface of a laser-penetrating second flat fluorine resin material 18, the first and the second flat fluorine resin materials are laminated with providing a liquid laser absorbing material 14 in a space between the rough surfaces 16 and 20, a laser beam is cast from the surface of the second flat fluorine resin material 18 to heat the laser-absorbing material 14 to melt the opposite surfaces of the first flat fluorine resin material 14 and the second fluorine resin material 18, and the melted fluorine resin materials are joined to each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明はフッ素樹脂材間の接合方法に係り、特に、一対のフッ素樹脂材間にレーザ吸収体を介装させた状態で、一方のフッ素樹脂材の表面からレーザ吸収体に向けてレーザビームを照射し、その発熱作用を利用してフッ素樹脂材の内面同士を融着させる接合方法に関する。   The present invention relates to a joining method between fluororesin materials, and in particular, with a laser absorber interposed between a pair of fluororesin materials, a laser beam is directed from the surface of one fluororesin material toward the laser absorber. The present invention relates to a bonding method in which irradiation is performed and the inner surfaces of the fluororesin material are fused using the heat generation action.

樹脂材同士を接合する方法の一つとして、レーザビームの照射による融着法が知られている。
例えば、図５に示すように、加工ステージ10上に第１のレーザ透過性樹脂材50、レーザ吸収体52、及び第２のレーザ透過性樹脂材54を積層配置させ状態で、レーザ吸収体52に向けて第２のレーザ透過性樹脂材54の表面側からレーザビームＬを照射すると、レーザビームＬは第２のレーザ透過性樹脂材54を透過してレーザ吸収体52に到達する。
この結果、レーザ吸収体52が発熱し、その伝導熱を受けて第１のレーザ透過性樹脂材50の表面及び第２のレーザ透過性樹脂材54の裏面が溶融し、両樹脂材50,54間がレーザビームＬの照射パターンに対応した溶融部56を介して気密に融着・接合されることとなる。
この接合方法によれば、余計な接着剤やネジ等を用いることなく、樹脂材50，54間を強固に接合することが可能となる。
特開２００１−７１３８４号公報 As one of methods for joining resin materials, a fusion method by laser beam irradiation is known.
For example, as shown in FIG. 5, the laser absorber 52 in a state where the first laser transmissive resin material 50, the laser absorber 52, and the second laser transmissive resin material 54 are stacked on the processing stage 10. When the laser beam L is irradiated from the surface side of the second laser transmitting resin material 54 toward the surface, the laser beam L passes through the second laser transmitting resin material 54 and reaches the laser absorber 52.
As a result, the laser absorber 52 generates heat, receives the conduction heat, and the front surface of the first laser transmitting resin material 50 and the back surface of the second laser transmitting resin material 54 are melted. The gap is hermetically fused and bonded via the melting portion 56 corresponding to the irradiation pattern of the laser beam L.
According to this joining method, it is possible to firmly join the resin materials 50 and 54 without using an extra adhesive or screw.
JP 2001-71384 A

しかしながら、上記の接合方法はフッ素樹脂材同士の接合には利用できないという問題があった。
すなわち、フッ素樹脂の表面は撥水性に優れているため、液状の吸収体を均一に塗布することが困難であり、レーザビームを照射しても溶着むらが発生する。このため、フッ素樹脂材同士を有効に接合することは不可能であると考えられてきた。 However, the above-described joining method has a problem that it cannot be used for joining fluororesin materials.
That is, since the surface of the fluororesin is excellent in water repellency, it is difficult to uniformly apply a liquid absorber, and uneven welding occurs even when irradiated with a laser beam. For this reason, it has been considered impossible to effectively join the fluororesin materials.

この発明は、従来の接合方法が抱える上記問題点を解決するために案出されたものであり、フッ素樹脂材同士をレーザビームの照射によって安定的に接合可能な技術を提供することを目的としている。   The present invention has been devised to solve the above-described problems of conventional bonding methods, and aims to provide a technique capable of stably bonding fluorine resin materials by laser beam irradiation. Yes.

上記の目的を達成するため、請求項１に記載したフッ素樹脂材間の接合方法は、レーザ透過性を備えた第１のフッ素樹脂材の表面及びレーザ透過性を備えた第２のフッ素樹脂材の裏面の少なくとも一方に粗面化処理を施す工程と、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、両フッ素樹脂材を積層させ、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、第２のフッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１のフッ素樹脂材及び第２のフッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。
このように、予め各フッ素樹脂材の少なくとも一方の表面（裏面）に粗面を形成することによって濡れ性が向上し、液状のレーザ吸収体がフッ素樹脂材の表面（裏面）に均一に広がることとなり、溶着むらが生じなくなる。
上記粗面化処理は、例えば紙ヤスリやサンドブラスタによってフッ素樹脂材の表面（裏面）を荒らし、微細な傷や凹部を形成することによって実現される。 In order to achieve the above object, the method for bonding between fluororesin materials according to claim 1 includes a surface of the first fluororesin material having laser transparency and a second fluororesin material having laser transparency. A step of roughening the surface of at least one of the back surface, a step of applying a laser absorber to at least one of the front surface of the first fluororesin material and the back surface of the second fluororesin material, The step of laminating and interposing a laser absorber between the front surface of the first fluororesin material and the back surface of the second fluororesin material, and the laser absorption by irradiating the laser from the front surface side of the second fluororesin material It is characterized by comprising a step of heating the body to melt the opposing surfaces of the first fluororesin material and the second fluororesin material, and a step of fusing the melted fluororesin materials together.
Thus, wettability is improved by previously forming a rough surface on at least one surface (back surface) of each fluororesin material, and the liquid laser absorber spreads uniformly on the surface (back surface) of the fluororesin material. As a result, uneven welding does not occur.
The roughening treatment is realized by, for example, roughening the front surface (back surface) of the fluororesin material with a paper file or a sand blaster to form fine scratches or recesses.

請求項２に記載したフッ素樹脂材間の接合方法は、レーザ透過性を備えた第１の筒状フッ素樹脂材の表面及びレーザ透過性を備えた第２の筒状フッ素樹脂材の裏面の少なくとも一方に粗面化処理を施す工程と、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、第１の筒状フッ素樹脂材を第２の筒状フッ素樹脂材の内部に挿通し、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、第２の筒状フッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。
この場合も、各筒状フッ素樹脂材の表面あるいは裏面に粗面を形成し、粗面間にレーザ吸収体を介装させるようにすることで、液状のレーザ吸収体がフッ素樹脂材間に均一に広がることとなり、溶着むらが生じなくなる。 The bonding method between the fluororesin materials according to claim 2 is provided such that at least the surface of the first cylindrical fluororesin material having laser transparency and the back surface of the second cylindrical fluororesin material having laser transparency are provided. A step of performing a roughening treatment on one side, a step of applying a laser absorber to at least one of the front surface of the first tubular fluororesin material and the back surface of the second tubular fluororesin material, and the first tubular shape Inserting a fluororesin material into the inside of the second cylindrical fluororesin material, and interposing a laser absorber between the surface of the first cylindrical fluororesin material and the back surface of the second cylindrical fluororesin material; The step of irradiating the laser from the surface side of the second tubular fluororesin material to heat the laser absorber and melting the opposing surfaces of the first tubular fluororesin material and the second tubular fluororesin material And a step of fusing the molten fluororesin material to each other It is.
Also in this case, by forming a rough surface on the front or back surface of each cylindrical fluororesin material and interposing the laser absorber between the rough surfaces, the liquid laser absorber is uniform between the fluororesin materials. And spread unevenness.

請求項３に記載したフッ素樹脂材間の接合方法は、請求項２の接合方法を前提とし、さらに第２の筒状フッ素樹脂材の表面側からファイバーレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程と、第２の筒状フッ素樹脂材を透過したレーザビームによって、反対側に位置するレーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。
ファイバーレーザは広がり角が極めて小さく、平行度の高いレーザビームであるため、レーザ照射位置が上下してもその都度焦点を合わせる必要がない。
このため、上記のように円筒状のフッ素樹脂材同士を嵌合させた状態でファイバーレーザを照射することにより、透過レーザビームを利用して反対側のレーザ吸収体を同時に加熱することが可能となり、接合効率を向上させることができる（請求項６においても同様）。 The bonding method between the fluororesin materials described in claim 3 is based on the bonding method according to claim 2, and further irradiates a fiber laser from the surface side of the second tubular fluororesin material to heat the laser absorber. A step of melting the opposing surfaces of the first and second tubular fluororesin materials, a step of fusing the melted fluororesin materials together, and a second tubular fluororesin material. The laser absorber located on the opposite side is heated by the transmitted laser beam to melt the opposing surfaces of the first tubular fluororesin material and the second tubular fluororesin material, and between the melted fluororesin materials And a step of fusing.
Since the fiber laser is a laser beam having a very small divergence angle and high parallelism, it is not necessary to focus each time the laser irradiation position is moved up and down.
For this reason, by irradiating the fiber laser with the cylindrical fluororesin materials fitted together as described above, it becomes possible to simultaneously heat the opposite laser absorber using the transmitted laser beam. Therefore, the joining efficiency can be improved (the same applies to claim 6).

請求項４に記載したフッ素樹脂材間の接合方法は、レーザ透過性を備えた第１のフッ素樹脂材の表面及びレーザ透過性を備えた第２のフッ素樹脂材の裏面の少なくとも一方に、放電処理を施して極性基を生成する工程と、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、両フッ素樹脂材を積層させ、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、第２のフッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１のフッ素樹脂材及び第２のフッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。
フッ素樹脂材の表面（裏面）に対してプラズマ放電処理やコロナ放電処理等の放電処理を施すことにより、大気中の酸素等がプラズマ状態となって表面（裏面）に衝突し、極性基が表面（裏面）に生成される。
この結果、フッ素樹脂材表面（裏面）の濡れ性が向上し、液状のレーザ吸収体がフッ素樹脂材の表面（裏面）に均一に広がるようになり、溶着むらが生じなくなる。 According to a fourth aspect of the present invention, there is provided a method for joining between fluororesin materials, wherein at least one of a front surface of a first fluororesin material having laser transmittance and a rear surface of a second fluororesin material having laser transmittance is discharged. Applying a treatment to generate a polar group, applying a laser absorber to at least one of the front surface of the first fluororesin material and the back surface of the second fluororesin material, laminating both fluororesin materials, A step of interposing a laser absorber between the surface of the first fluororesin material and the back surface of the second fluororesin material, and heating the laser absorber by irradiating a laser from the surface side of the second fluororesin material In addition, the method includes a step of melting the facing surfaces of the first fluororesin material and the second fluororesin material, and a step of fusing the melted fluororesin materials together.
By applying a discharge treatment such as plasma discharge treatment or corona discharge treatment to the front surface (back surface) of the fluororesin material, oxygen in the atmosphere becomes a plasma state and collides with the front surface (back surface), and the polar group is on the surface. (Back side).
As a result, the wettability of the front surface (back surface) of the fluororesin material is improved, the liquid laser absorber spreads uniformly on the front surface (back surface) of the fluororesin material, and uneven welding does not occur.

請求項５に記載したフッ素樹脂材間の接合方法は、レーザ透過性を備えた第１の筒状フッ素樹脂材の表面及びレーザ透過性を備えた第２の筒状フッ素樹脂材の裏面の少なくとも一方に、放電処理を施して極性基を生成する工程と、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、第１の筒状フッ素樹脂材を第２の筒状フッ素樹脂材の内部に挿通し、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、第２の筒状フッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。
この場合も、各筒状フッ素樹脂材の表面（裏面）の濡れ性が向上するため、液状のレーザ吸収体がフッ素樹脂材間に均一に広がることとなり、溶着むらが生じなくなる。 The bonding method between the fluororesin materials according to claim 5 is a method of at least the surface of the first cylindrical fluororesin material having laser transparency and the back surface of the second cylindrical fluororesin material having laser transparency. On the other hand, a step of performing a discharge treatment to generate a polar group, a step of applying a laser absorber to at least one of the front surface of the first tubular fluororesin material and the back surface of the second tubular fluororesin material, The first cylindrical fluororesin material is inserted into the second cylindrical fluororesin material, and a laser absorber is interposed between the surface of the first cylindrical fluororesin material and the back surface of the second cylindrical fluororesin material. A step of interposing, and the laser absorber is heated by irradiating a laser from the surface side of the second cylindrical fluororesin material, and the first cylindrical fluororesin material and the second cylindrical fluororesin material are opposed to each other A step of melting the surface, a step of fusing the melted fluororesin materials, It is characterized by comprising.
Also in this case, the wettability of the front surface (rear surface) of each cylindrical fluororesin material is improved, so that the liquid laser absorber spreads uniformly between the fluororesin materials, and uneven welding does not occur.

請求項６に記載したフッ素樹脂材間の接合方法は、請求項５の接合方法を前提とし、さらに第２の筒状フッ素樹脂材の表面側からファイバーレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程と、第２の筒状フッ素樹脂材を透過したレーザビームによって、反対側に位置するレーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴としている。   The bonding method between fluororesin materials described in claim 6 is based on the bonding method according to claim 5, and further, the laser absorber is heated by irradiating a fiber laser from the surface side of the second tubular fluororesin material. A step of melting the opposing surfaces of the first and second tubular fluororesin materials, a step of fusing the melted fluororesin materials together, and a second tubular fluororesin material. The laser absorber located on the opposite side is heated by the transmitted laser beam to melt the opposing surfaces of the first tubular fluororesin material and the second tubular fluororesin material, and between the melted fluororesin materials And a step of fusing.

この発明に係るフッ素樹脂材間の接合方法にあっては、予め各フッ素樹脂材の表面（裏面）に粗面化処理あるいは放電処理を施し、その濡れ性を向上させるようにしているため、液状のレーザ吸収体がフッ素樹脂材間に均一に広がる。
この結果、レーザビームを照射してフッ素樹脂材同士を接合するに際して溶着むらが生じなくなる。 In the joining method between the fluororesin materials according to the present invention, the surface (rear surface) of each fluororesin material is subjected to a roughening treatment or a discharge treatment in advance to improve its wettability. The laser absorber spreads uniformly between the fluororesin materials.
As a result, uneven welding does not occur when the fluororesin materials are bonded together by irradiation with a laser beam.

図１及び図２は、この発明に係るフッ素樹脂材間の第１の接合方法を示す概略断面図である。
まず、図１に示すように、加工ステージ10上に載置された第１の平板状フッ素樹脂材12の表面に、８３０ＮＰ等よりなる液状のレーザ吸収体14が塗布される。
第１の平板状フッ素樹脂材12は、レーザ透過性を備えている。
また、第１の平板状フッ素樹脂材12の表面には、紙ヤスリやサンドブラスタによって粗面16が形成されているため、液状のレーザ吸収体14がむらなく均一に塗布される。
粗面16を形成する代わりに、第１の平板状フッ素樹脂材12の表面にコロナ放電処理を施すことにより、改質面を形成してもよい。すなわち、空気中に設置した電極間に第１のフッ素樹脂材12を配置させ、高周波・高電圧を印加して電子を表面に衝突させると、プラズマ作用によって表面に極性基が生成され、その濡れ性が大幅に向上するため、液状のレーザ吸収体14がむらなく均一に塗布される。コロナ放電処理の代わりに、プラズマ放電処理を施すことによっても同様の濡れ性向上効果を得ることができる。 1 and 2 are schematic sectional views showing a first joining method between fluororesin materials according to the present invention.
First, as shown in FIG. 1, a liquid laser absorber 14 made of 830NP or the like is applied to the surface of the first flat plate-like fluororesin material 12 placed on the processing stage 10.
The first flat fluororesin material 12 has laser transparency.
Further, since the rough surface 16 is formed on the surface of the first flat fluororesin material 12 by a paper file or a sand blaster, the liquid laser absorber 14 is uniformly applied.
Instead of forming the rough surface 16, the modified surface may be formed by performing corona discharge treatment on the surface of the first flat plate-like fluororesin material 12. That is, when the first fluororesin material 12 is placed between electrodes placed in the air and a high frequency / high voltage is applied to cause electrons to collide with the surface, polar groups are generated on the surface by the plasma action, and the wetting Therefore, the liquid laser absorber 14 is evenly and uniformly applied. Similar wettability improvement effect can be obtained by performing plasma discharge treatment instead of corona discharge treatment.

つぎに、このレーザ吸収体14の表面に第２の平板状フッ素樹脂材18が被せられる。
この第２の平板状フッ素樹脂材18も、第１の平板状フッ素樹脂材12と同じくレーザ透過性を備えている。
また、第２の平板状フッ素樹脂材18の裏面にも、紙ヤスリやサンドブラスタによって粗面20が形成されているため、第１の平板状フッ素樹脂材12と第２の平板状フッ素樹脂材18間に液状のレーザ吸収体14がむらなく均一に広がることとなる。この場合も、粗面20を形成する代わりに、第２の平板状フッ素樹脂材18の裏面にコロナ放電処理等を施すことにより、改質面を形成してもよい。
この第２の平板状フッ素樹脂材18の表面には、レーザ吸収性を備えた押さえプレート22が載置され、所定の圧力が加えられる。 Next, the surface of the laser absorber 14 is covered with a second flat fluororesin material 18.
This second flat plate-like fluororesin material 18 also has a laser transmission property, like the first flat plate-like fluororesin material 12.
Further, since the rough surface 20 is formed by a paper file or a sandblaster on the back surface of the second flat plate-like fluororesin material 18, the first flat plate-like fluororesin material 12 and the second flat plate-like fluororesin material are used. The liquid laser absorber 14 spreads uniformly between 18. Also in this case, instead of forming the rough surface 20, the modified surface may be formed by performing corona discharge treatment or the like on the back surface of the second flat plate-like fluororesin material 18.
On the surface of the second flat plate-like fluororesin material 18, a holding plate 22 having laser absorbability is placed, and a predetermined pressure is applied.

つぎに、図２に示すように、押さえプレート22の表面側から半導体レーザのビームＬを照射すると、押さえプレート22及び第２の平板状フッ素樹脂材18を透過したレーザビームＬの一部がレーザ吸収体14に吸収され、発熱する。
また、このレーザ吸収体14からの伝導熱を受けて第１の平板状フッ素樹脂材12及び第２の平板状フッ素樹脂材18の対向面がそれぞれ溶融する。
この結果、両フッ素樹脂材12，18間は、レーザ照射パターンに沿って生じた線状溶融部24を介して気密に接合されることとなる。 Next, as shown in FIG. 2, when the semiconductor laser beam L is irradiated from the surface side of the holding plate 22, a part of the laser beam L that has passed through the holding plate 22 and the second flat plate-like fluororesin material 18 is a laser beam. It is absorbed by the absorber 14 and generates heat.
Further, the opposing surfaces of the first flat plate-like fluororesin material 12 and the second flat plate-like fluororesin material 18 are melted by receiving conduction heat from the laser absorber 14.
As a result, both the fluororesin materials 12 and 18 are joined in an airtight manner via the linear melted portion 24 generated along the laser irradiation pattern.

図３及び図４は、この発明に係るフッ素樹脂材間の第２の接合方法を示すものである。
まず、図３に示すように、第１の円筒状フッ素樹脂材30の表面に８３０ＮＰ等のレーザ吸収体32を塗布した上で、第２の円筒状フッ素樹脂材34内に挿通させる。この結果、図４に示すように、円筒状の連結体36が形成される。
第１の円筒状フッ素樹脂材30及び第２の円筒状フッ素樹脂材34は、共にレーザ透過性を備えている。 3 and 4 show a second joining method between the fluororesin materials according to the present invention.
First, as shown in FIG. 3, a laser absorber 32 such as 830NP is applied to the surface of the first cylindrical fluororesin material 30, and then inserted into the second cylindrical fluororesin material 34. As a result, as shown in FIG. 4, a cylindrical connecting body 36 is formed.
Both the first cylindrical fluororesin material 30 and the second cylindrical fluororesin material 34 have laser transparency.

第１の円筒状フッ素樹脂材30の外周面及び第２の円筒状フッ素樹脂材34の内周面には、それぞれ上記と同様の方法で粗面37，38が形成されている。
あるいは、粗面37，38を形成する代わりに、第１の円筒状フッ素樹脂材30の外周面及び第２の円筒状フッ素樹脂材34の内周面にコロナ放電処理等を施すことにより、改質面を形成しておいてもよい。
また、上記粗面化処理やコロナ放電処理等を、第１の円筒状フッ素樹脂材30の外周面側のみに施すこともできる。 Rough surfaces 37 and 38 are formed on the outer peripheral surface of the first cylindrical fluororesin material 30 and the inner peripheral surface of the second cylindrical fluororesin material 34 by the same method as described above.
Alternatively, instead of forming the rough surfaces 37 and 38, the outer peripheral surface of the first cylindrical fluororesin material 30 and the inner peripheral surface of the second cylindrical fluororesin material 34 are subjected to corona discharge treatment or the like. A textured surface may be formed.
Further, the roughening treatment, the corona discharge treatment, or the like can be performed only on the outer peripheral surface side of the first cylindrical fluororesin material 30.

つぎに、第２の円筒状フッ素樹脂材34の表面から平行度の極めて高いファイバーレーザのビームＬを照射すると、図４に示すように、まずレーザビームＬは第２の円筒状フッ素樹脂材34を透過してレーザ吸収体32に到達し、これを加熱する。つぎに、この伝導熱を受けて第１の円筒状フッ素樹脂材30の外周面及び第２の円筒状フッ素樹脂材34の内周面が溶融する結果、両フッ素樹脂材30，34間は溶融部40ａを介して接合される。   Next, when a fiber laser beam L having an extremely high degree of parallelism is irradiated from the surface of the second cylindrical fluororesin material 34, the laser beam L is first emitted from the second cylindrical fluororesin material 34 as shown in FIG. And reaches the laser absorber 32 and heats it. Next, the outer peripheral surface of the first cylindrical fluororesin material 30 and the inner peripheral surface of the second cylindrical fluororesin material 34 are melted by receiving this conduction heat, so that the gap between both fluororesin materials 30 and 34 is melted. It joins via the part 40a.

同時に、第１の円筒状フッ素樹脂材30を透過したレーザビームＬが第１の円筒状フッ素樹脂30の内周面に再入射し、溶融部40ａの反対側に位置するレーザ吸収体32を加熱する。この結果、両フッ素樹脂材30，34間は、溶融部40ｂを介しても接合される。
したがって、レーザビームＬを円筒状連結体36と交差する方向に走査することにより、第１の円筒状フッ素樹脂材30及び第２の円筒状フッ素樹脂材34を回転させることなく、それぞれの対向面同士を一度に接合することが可能となる。 At the same time, the laser beam L that has passed through the first cylindrical fluororesin material 30 reenters the inner peripheral surface of the first cylindrical fluororesin 30 and heats the laser absorber 32 located on the opposite side of the melting portion 40a. To do. As a result, both the fluororesin materials 30 and 34 are also joined via the melting part 40b.
Accordingly, by scanning the laser beam L in the direction intersecting the cylindrical coupling body 36, the respective opposing surfaces can be obtained without rotating the first cylindrical fluororesin material 30 and the second cylindrical fluororesin material 34. It becomes possible to join together.

この場合も、第１の円筒状フッ素樹脂材30の外周面及び第２の円筒状フッ素樹脂材34の内周面には上記のように予め粗面37，38が形成されているため、レーザ吸収体32が両フッ素樹脂材30，34間に均一に分布している。
この結果、レーザビームＬの照射時に溶着むらが生じることがなく、両フッ素樹脂材30，34間は安定的に接合される。 Also in this case, the rough surfaces 37 and 38 are formed in advance on the outer peripheral surface of the first cylindrical fluororesin material 30 and the inner peripheral surface of the second cylindrical fluororesin material 34 as described above. The absorber 32 is uniformly distributed between the two fluororesin materials 30 and 34.
As a result, uneven welding does not occur when the laser beam L is irradiated, and the two fluororesin materials 30 and 34 are stably joined.

なお、上記のようにレーザビームの照射位置が40ａから40ｂと上下に移動しても有効にレーザ吸収体32を加熱することができるのは、上記のように平行度が極めて高くＺ軸方向でのフォーカシングが不要なファイバーレーザを用いているからであるが、連結体36を回転させることを厭わないのであれば、第１の接合方法と同じく半導体レーザを用いて第１の円筒状フッ素樹脂材30及び第２の円筒状フッ素樹脂材34間を接合することも可能である。   As described above, the laser absorber 32 can be effectively heated even when the irradiation position of the laser beam moves up and down from 40a to 40b. This is because a fiber laser that does not require focusing is used, but if there is no problem in rotating the coupling body 36, the first cylindrical fluororesin material is used by using a semiconductor laser as in the first joining method. It is also possible to join 30 and the second cylindrical fluororesin material 34.

この発明に係るフッ素樹脂材間の第１の接合方法を示す概略断面図である。It is a schematic sectional drawing which shows the 1st joining method between the fluororesin materials concerning this invention. この発明に係るフッ素樹脂材間の第１の接合方法を示す概略断面図である。It is a schematic sectional drawing which shows the 1st joining method between the fluororesin materials concerning this invention. この発明に係るフッ素樹脂材間の第２の接合方法を示す概略斜視図である。It is a schematic perspective view which shows the 2nd joining method between the fluororesin materials concerning this invention. この発明に係るフッ素樹脂材間の第２の接合方法を示す概略断面図である。It is a schematic sectional drawing which shows the 2nd joining method between the fluororesin materials concerning this invention. 樹脂材間の従来の接合方法を示す概略断面図である。It is a schematic sectional drawing which shows the conventional joining method between resin materials.

符号の説明Explanation of symbols

10 加工ステージ
12 第１の平板状フッ素樹脂材
14 レーザ吸収体
16 粗面
18 第２の平板状フッ素樹脂材
20 粗面
22 押さえプレート
24 線状溶融部
30 第１の円筒状フッ素樹脂材
32 レーザ吸収体
34 第２の円筒状フッ素樹脂材
36 円筒状の連結体
37 粗面
38 粗面
40ａ 溶融部
40ｂ 溶融部
10 Machining stage
12 First flat fluoropolymer material
14 Laser absorber
16 Rough surface
18 Second flat-plate fluoropolymer material
20 Rough surface
22 Presser plate
24 linear melting zone
30 First cylindrical fluoropolymer material
32 Laser absorber
34 Second cylindrical fluoropolymer material
36 Cylindrical connector
37 Rough surface
38 Rough surface
40a Melting zone
40b Melting zone

Claims (6)

レーザ透過性を備えた第１のフッ素樹脂材の表面及びレーザ透過性を備えた第２のフッ素樹脂材の裏面の少なくとも一方に粗面化処理を施す工程と、
第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、
両フッ素樹脂材を積層させ、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、
第２のフッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１のフッ素樹脂材及び第２のフッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とするフッ素樹脂材間の接合方法。 Applying a roughening treatment to at least one of the front surface of the first fluororesin material having laser transparency and the back surface of the second fluororesin material having laser transparency;
Applying a laser absorber to at least one of the front surface of the first fluororesin material and the back surface of the second fluororesin material;
Laminating both fluororesin materials, and interposing a laser absorber between the front surface of the first fluororesin material and the back surface of the second fluororesin material;
Irradiating a laser from the surface side of the second fluororesin material to heat the laser absorber, and melting the opposing surfaces of the first fluororesin material and the second fluororesin material;
And a step of fusing the molten fluororesin materials to each other. レーザ透過性を備えた第１の筒状フッ素樹脂材の表面及びレーザ透過性を備えた第２の筒状フッ素樹脂材の裏面の少なくとも一方に粗面化処理を施す工程と、
第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、
第１の筒状フッ素樹脂材を第２の筒状フッ素樹脂材の内部に挿通し、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、
第２の筒状フッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とするフッ素樹脂材間の接合方法。 Applying a roughening treatment to at least one of the front surface of the first tubular fluororesin material having laser transmittance and the back surface of the second tubular fluororesin material having laser transmittance;
Applying a laser absorber to at least one of the front surface of the first tubular fluororesin material and the back surface of the second tubular fluororesin material;
The first cylindrical fluororesin material is inserted into the second cylindrical fluororesin material, and a laser absorber is interposed between the surface of the first cylindrical fluororesin material and the back surface of the second cylindrical fluororesin material. A step of interposing,
Irradiating a laser from the surface side of the second tubular fluororesin material to heat the laser absorber and melting the opposing surfaces of the first tubular fluororesin material and the second tubular fluororesin material; ,
And a step of fusing the molten fluororesin materials to each other. 第２の筒状フッ素樹脂材の表面側からファイバーレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程と、
第２の筒状フッ素樹脂材を透過したレーザビームによって、反対側に位置するレーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とする請求項２に記載のフッ素樹脂材間の接合方法。 A step of irradiating a fiber laser from the surface side of the second cylindrical fluororesin material and heating the laser absorber to melt the opposing surfaces of the first cylindrical fluororesin material and the second cylindrical fluororesin material. When,
A step of fusing the molten fluororesin material,
The laser absorber located on the opposite side is heated by the laser beam transmitted through the second cylindrical fluororesin material, and the opposing surfaces of the first cylindrical fluororesin material and the second cylindrical fluororesin material are melted. Process,
The method for bonding between fluororesin materials according to claim 2, further comprising a step of fusing the melted fluororesin materials. レーザ透過性を備えた第１のフッ素樹脂材の表面及びレーザ透過性を備えた第２のフッ素樹脂材の裏面の少なくとも一方に、放電処理を施して極性基を生成する工程と、
第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、
両フッ素樹脂材を積層させ、第１のフッ素樹脂材の表面及び第２のフッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、
第２のフッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１のフッ素樹脂材及び第２のフッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とするフッ素樹脂材間の接合方法。 A step of generating a polar group by performing a discharge treatment on at least one of the front surface of the first fluororesin material having laser transparency and the back surface of the second fluororesin material having laser transparency;
Applying a laser absorber to at least one of the front surface of the first fluororesin material and the back surface of the second fluororesin material;
Laminating both fluororesin materials, and interposing a laser absorber between the front surface of the first fluororesin material and the back surface of the second fluororesin material;
Irradiating a laser from the surface side of the second fluororesin material to heat the laser absorber, and melting the opposing surfaces of the first fluororesin material and the second fluororesin material;
And a step of fusing the molten fluororesin materials to each other. レーザ透過性を備えた第１の筒状フッ素樹脂材の表面及びレーザ透過性を備えた第２の筒状フッ素樹脂材の裏面の少なくとも一方に、放電処理を施して極性基を生成する工程と、
第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面の少なくとも一方にレーザ吸収体を塗布する工程と、
第１の筒状フッ素樹脂材を第２の筒状フッ素樹脂材の内部に挿通し、第１の筒状フッ素樹脂材の表面及び第２の筒状フッ素樹脂材の裏面間にレーザ吸収体を介装させる工程と、
第２の筒状フッ素樹脂材の表面側からレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とするフッ素樹脂材間の接合方法。 A step of generating a polar group by subjecting at least one of a front surface of the first tubular fluororesin material having laser transparency and a back surface of the second tubular fluororesin material having laser transparency to discharge treatment; ,
Applying a laser absorber to at least one of the front surface of the first tubular fluororesin material and the back surface of the second tubular fluororesin material;
The first cylindrical fluororesin material is inserted into the second cylindrical fluororesin material, and a laser absorber is interposed between the surface of the first cylindrical fluororesin material and the back surface of the second cylindrical fluororesin material. A step of interposing,
Irradiating a laser from the surface side of the second tubular fluororesin material to heat the laser absorber and melting the opposing surfaces of the first tubular fluororesin material and the second tubular fluororesin material; ,
And a step of fusing the molten fluororesin materials to each other. 第２の筒状フッ素樹脂材の表面側からファイバーレーザを照射して上記レーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程と、
第２の筒状フッ素樹脂材を透過したレーザビームによって、反対側に位置するレーザ吸収体を加熱し、第１の筒状フッ素樹脂材及び第２の筒状フッ素樹脂材の対向面を溶融させる工程と、
溶融したフッ素樹脂材同士を融着させる工程とを備えたことを特徴とする請求項５に記載のフッ素樹脂材間の接合方法。
A step of irradiating a fiber laser from the surface side of the second cylindrical fluororesin material and heating the laser absorber to melt the opposing surfaces of the first cylindrical fluororesin material and the second cylindrical fluororesin material. When,
A step of fusing the molten fluororesin material,
The laser absorber located on the opposite side is heated by the laser beam transmitted through the second cylindrical fluororesin material, and the opposing surfaces of the first cylindrical fluororesin material and the second cylindrical fluororesin material are melted. Process,
The method for bonding between fluororesin materials according to claim 5, further comprising a step of fusing the melted fluororesin materials.
JP2004213382A 2003-09-10 2004-07-21 Method for joining fluorine resin material Pending JP2005104132A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009532236A (en) * 2006-04-06 2009-09-10 フレゼニウス メディカル ケアー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング Laser transmission welding method for joining molded plastic bodies
EP1800838A3 (en) * 2005-12-22 2010-05-12 Siemens Canada Limited Method of maintaining appearance criteria in laser welded article air induction assembly
CN102063914A (en) * 2009-11-11 2011-05-18 日立视听媒体股份有限公司 Optical component laser-welded structure and optical pickup manufacturing method
JP2012017753A (en) * 2010-07-06 2012-01-26 Tokyo Keiso Co Ltd Method of sealing resin diaphragm
WO2012140873A1 (en) * 2011-04-15 2012-10-18 株式会社日立製作所 Method for laser bonding
DE102016116608A1 (en) 2016-09-06 2018-03-08 Invendo Medical Gmbh Linear laser welding of tubular plastic elements
WO2021230025A1 (en) 2020-05-13 2021-11-18 株式会社ヒロテック Method of bonding thermoplastic resin and metal

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6246621A (en) * 1985-08-23 1987-02-28 Toyota Motor Corp Joint of synthetic resin material
JPH02266918A (en) * 1989-04-10 1990-10-31 Fujitsu Ltd Method for bonding plastic
WO2001076807A1 (en) * 2000-04-11 2001-10-18 Branson Ultrasonics Corp. Light guide for laser welding
JP2003136598A (en) * 2001-11-06 2003-05-14 Matsushita Electric Works Ltd Resin molded object having decoration part and method for manufacturing the same
JP2003136600A (en) * 2001-11-02 2003-05-14 Honda Motor Co Ltd Laser bonding method for resin members
JP2004090628A (en) * 2002-07-09 2004-03-25 Ube Ind Ltd Method for joining pipe-shaped article
JP2004349123A (en) * 2003-05-22 2004-12-09 Stanley Electric Co Ltd The welding method of vehicular lighting device
JP2004351873A (en) * 2003-05-30 2004-12-16 Fine Device:Kk Method of jointing between resins

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6246621A (en) * 1985-08-23 1987-02-28 Toyota Motor Corp Joint of synthetic resin material
JPH02266918A (en) * 1989-04-10 1990-10-31 Fujitsu Ltd Method for bonding plastic
WO2001076807A1 (en) * 2000-04-11 2001-10-18 Branson Ultrasonics Corp. Light guide for laser welding
JP2003136600A (en) * 2001-11-02 2003-05-14 Honda Motor Co Ltd Laser bonding method for resin members
JP2003136598A (en) * 2001-11-06 2003-05-14 Matsushita Electric Works Ltd Resin molded object having decoration part and method for manufacturing the same
JP2004090628A (en) * 2002-07-09 2004-03-25 Ube Ind Ltd Method for joining pipe-shaped article
JP2004349123A (en) * 2003-05-22 2004-12-09 Stanley Electric Co Ltd The welding method of vehicular lighting device
JP2004351873A (en) * 2003-05-30 2004-12-16 Fine Device:Kk Method of jointing between resins

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1800838A3 (en) * 2005-12-22 2010-05-12 Siemens Canada Limited Method of maintaining appearance criteria in laser welded article air induction assembly
US8778120B2 (en) 2006-04-06 2014-07-15 Fresenius Medical Care Deutschland Gmbh Transmission laser welding method for connecting shaped plastic bodies
EP2444237B1 (en) * 2006-04-06 2018-06-06 Fresenius Medical Care Deutschland GmbH Transmission laser welding method for joining plastic moulded articles and welded joint
JP2009532236A (en) * 2006-04-06 2009-09-10 フレゼニウス メディカル ケアー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング Laser transmission welding method for joining molded plastic bodies
JP2011103159A (en) * 2009-11-11 2011-05-26 Hitachi Media Electoronics Co Ltd Laser-welding structure of optical component and method for manufacturing optical pickup
CN102063914B (en) * 2009-11-11 2014-03-12 日立视听媒体股份有限公司 Optical component laser-welded structure and optical pickup manufacturing method
CN102063914A (en) * 2009-11-11 2011-05-18 日立视听媒体股份有限公司 Optical component laser-welded structure and optical pickup manufacturing method
JP2012017753A (en) * 2010-07-06 2012-01-26 Tokyo Keiso Co Ltd Method of sealing resin diaphragm
WO2012140873A1 (en) * 2011-04-15 2012-10-18 株式会社日立製作所 Method for laser bonding
JP2012223889A (en) * 2011-04-15 2012-11-15 Hitachi Ltd Method for laser bonding
CN103561937A (en) * 2011-04-15 2014-02-05 株式会社日立制作所 Method for laser bonding
DE102016116608A1 (en) 2016-09-06 2018-03-08 Invendo Medical Gmbh Linear laser welding of tubular plastic elements
WO2021230025A1 (en) 2020-05-13 2021-11-18 株式会社ヒロテック Method of bonding thermoplastic resin and metal
US11826964B2 (en) 2020-05-13 2023-11-28 Hirotec Corporation Method of bonding thermoplastic resin and metal

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