WO2005021245A1 - レーザー溶着方法 - Google Patents
レーザー溶着方法 Download PDFInfo
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- WO2005021245A1 WO2005021245A1 PCT/JP2004/011732 JP2004011732W WO2005021245A1 WO 2005021245 A1 WO2005021245 A1 WO 2005021245A1 JP 2004011732 W JP2004011732 W JP 2004011732W WO 2005021245 A1 WO2005021245 A1 WO 2005021245A1
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- Prior art keywords
- laser
- laser light
- resin
- resin member
- white
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- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Classifications
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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
- 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
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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
- 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
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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
- 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
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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
- 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
-
- 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
- B29C65/168—Laser beams making use of an absorber or impact modifier placed at the interface
-
- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
-
- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
- B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
-
- 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
- B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness 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
- B29C66/40—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
- B29C66/73—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
- B29C66/733—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
- B29C66/7332—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being coloured
-
- 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
-
- 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
- B29C65/14—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
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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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
- 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
- B29C65/1674—Laser beams characterised by the way of heating the interface making use of laser diodes
-
- 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
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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
- 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
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
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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
- B29C66/70—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
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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
- B29C66/80—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
- B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
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- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
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- 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
- B29K2995/002—Coloured
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- 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
- B29K2995/0022—Bright, glossy or shiny surface
Definitions
- the present invention relates to a method for welding a resin member for laser welding, which is translucent or opaque and has a white, gray, or pale white hue, using a laser beam.
- thermoplastic resin members In order to join the thermoplastic resin members, laser welding, vibration welding, ultrasonic welding, fastening with a port, or bonding with an adhesive is performed.
- laser welding involves laminating a laser-transmissive resin member on a laser light-absorbing resin member, and the laser beam irradiated from above is transmitted through the transparent resin member and reaches the absorbing resin member. It absorbs heat and generates heat, and the two resin members are joined by heat melting.
- laser welding is less susceptible to stress and overheating due to vibration, and it is a simple operation of irradiating laser light. It can join resin members of various shapes with sufficient strength and high yield. For this reason, laser welding is suitable in the manufacturing process of precision machinery, electronic components, and medical devices where resin members must be bonded precisely.
- Japanese Unexamined Patent Publication No. Hei 9-5100930 and Japanese Unexamined Patent Publication No. Hei 11-170370 discloses a colorless transparent, uncolored or black colored laser.
- the fusing of a light-transmitting resin member and an opaque or black-colored laser light-absorbing resin member is disclosed.
- Conventional transparent permeable resin material When welding opaque absorbent resin members, the welded part is seen through, which limits the practical range. Further, in the case of welding in which the transparent resin member and the absorbent resin member are of different colors or black, the hue is limited.
- the present invention has been made in order to solve the above-mentioned problems, and has a high visible light reflectance and is translucent or opaque in appearance, and has an achromatic color such as white or gray, or a light red or Provides a laser welding method that can easily weld a laser welding resin member that exhibits a pale hue called a pastel color such as pale blue, pale yellow or milky white by irradiating a laser beam. The purpose is to do. Disclosure of the invention
- thermoplastic resin has a weight of 100 parts by weight and a refractive index of 2 to 2.8.
- the resin members 2 which can have at least a part of the laser light absorbing property are superimposed and then heat-welded by irradiating with a laser beam 3.
- Material 1 shows a clear, beautiful and good white color even with a small amount of white pigment, and has a high concealing property.
- white pigments are, for example, zinc oxide, titanium oxide, and / or antimony trioxide.
- zinc oxide for example, C.I.Pigment White 4
- titanium oxide also referred to as titanium dioxide, for example, C.I.Pigment White 6, as antimony trioxide, for example, C.I.P. igment White 11
- rutile titanium oxide is more preferable.
- the white pigment may be surface-treated.
- the white pigment is 0.2 to 1.5 parts by weight.
- This laser welding method is the same as described above with the resin member 2 having at least partially the laser light absorbing property, with 99.1 to 98 parts by weight of a thermoplastic resin and a refractive index of 2 to 2.8.
- a resin composition containing 0.1 to 2 parts by weight of a natural white pigment and having a white hue of white, gray or pale color may be used.
- At least a part of the resin member 2 in the wavelength region of 800 to 1200 nm is used as the resin member 2 capable of at least partially having the laser light absorbing property.
- a laser light absorbing layer 8 or 9 containing an absorber that absorbs light and a white resin material 7 provided with the absorbing layer 8 or 9 may be used.
- the laser beam transmitting resin member 1 And the color difference ⁇ between the resin member 2 and the white resin material 7, which can have the laser light absorption at least partially, can be 0.3 or less, preferably 0.2 or less. This makes it possible to easily obtain a welded product of the members 1 and 2 having a similar white hue to each other.
- the laser light transmitting resin member 1 exhibits a nearly white hue having high whiteness when it does not contain a coloring agent other than a white pigment. Can be applied.
- the laser light transmitting resin member 1 contains a laser light transmitting colorant exhibiting yellow, red, blue, green, black, etc. together with the white pigment, the hue of the colorant and the white pigment Since the white color is mixed with the white color to give a white hue in appearance, laser welding can be performed as a white resin member.
- the resin member 1 that transmits laser light contains a black colorant, it exhibits an achromatic white hue such as gray and a chromatic colorant such as yellow, red, blue, and green.
- it has a pale white hue called pastel color such as pale yellow to milky white, pale red, pale blue, or pale green.
- This laser welding method includes the following azo dyes, azo gold-containing dyes, and naphthol azo dyes as the laser light-transmitting colorants exhibiting yellow, red, blue, green, black, and the like.
- One or more colorants May be used in combination. For example, a yellow colorant and a blue colorant are combined to form a green colorant, a blue colorant and a red colorant are combined to form a purple colorant, or a yellow colorant and a purple colorant are combined.
- a black colorant can be used.
- Such colorants are sold as master patches in eBIND L TW—81 0 C, 812, 812, 8620 C, 8730 C, 8 It may be 200, 8250 C, 8300, etc. (all are trade names manufactured by Orient Chemical Industries, Ltd.).
- the hue of the resin member that transmits laser light is calculated from the L value, a value, and b value represented by the L * a * b * color system by the following formula (I)
- the whiteness calculated by (I) can be set to at least 50. This whiteness is an index for determining the degree of whiteness and the concealment property. Those having a whiteness of 60 to 80 are translucent or slightly opaque resin materials having low hiding power. Laser-welded materials using such resin materials are suitable for applications that produce products with high demand in terms of fashionability and taste. In particular, those exhibiting a pale color called pastel force such as light red, light blue, light yellow, or milky white are suitable.
- those having a whiteness of 80 or more, preferably in the range of 85 to 95, are opaque and have a high hiding power, so that the content contained in the transparent resin member by laser welding can be concealed, Suitable for applications requiring protection and preservation.
- the resin member 1 having laser light transmittance contains an appropriate amount of white pigment, a sufficient amount of resin for laser welding can be obtained. In addition to being able to transmit light one by one, sufficient formability and welding strength can be obtained even without a filler. According to this method, the resin member
- colorants fillers for further improving moldability and strength, and additives that easily absorb or diffuse laser light, such as flame retardants, are used. Even if it is further contained, it is versatile because it can transmit a sufficient amount of laser light for laser welding.
- the laser light transmitting resin member can transmit half of the laser while sufficiently transmitting one laser beam. It is preferable because it shows a transparent to opaque appearance and makes the finish of laser welding beautiful. It is more preferable that it is 200 to 300 nm. When the particle size is in this range, the coloring power is high, and in the case of a white pigment, the whiteness is high.
- the hue of the white resin material 7 constituting the resin member 2 which can have at least partially the laser light absorbing property is represented by an L * a * b * color system. From L value, a value and b value, the following formula (II)
- the whiteness W 2 100-(100-f + (a 2 + b 2 )...
- the whiteness W 2 calculated by (II) can be at least 80.
- This laser welding method is shown in FIG. As described above, it is preferable that the laser light absorbing layer 8 is formed of the resin film 8 containing the laser light absorbing agent.
- the laser light absorbing layer 9 is formed by applying an ink or Z and paint containing the laser light absorbing agent. It may be formed.
- an alcohol-based solvent or a glycol-based solvent as a main solvent.
- monohydric alcohols for example, ethanol, n-propanol, isoprone, n-butanol, n-butanol, aminoreanorekonore, penzinoreanorekonore, shiku Alcohols such as xanole and diacetone olenole; ethylene cornore monomethynoate ethere, ethylene glycol cornole monoethylenatele, propylene glycol cornole monomethineoleatenole, propylene glycol corneole Alkyl ethers of glycolone, such as ethylene glycol monoethylene ether, ethylene glycol monooleate ethanolate, diethylene glycolone mononotetinoleate and dipropylene glycol monolenoethyl ether; ethylene glycol monoacetate and ethylene
- dihydric alcohols eg, ethylene glycol cornole, diethylene glycol cornole, triethylene glycol cornole, tetraethylene glycol phenol, polyethylene glycol cornole, propylene glycol
- dalicol such as butanediol
- the ink and / or paint other than those that prevent the welding of the resin member to be laser-welded depending on the application and purpose, for example, a soluble or dispersible resin, a colorant, a dispersant, Stabilizers, preservatives, light stabilizers, etc. can be used.
- This laser welding method uses a laser light transmitting resin member as a wavelength from about 800 nm using a semiconductor laser to about 100 nm using a YAG laser, that is, a laser used for laser welding.
- a laser used for laser welding One that transmits at least 10% with respect to the wavelength of one light is used. It is preferable that the infrared / transmittance at 808 nm, 840 nm, 940 nm, and 1064 nm be at least 15%. If it is lower than this, a sufficient amount of laser light of these wavelengths cannot be transmitted, so that the intensity of the laser-welded material is insufficient or a laser light energy that is not practically necessary is required.
- the amount of energy X (J / mm) given by the laser beam irradiated while scanning is expressed by the following formula (III).
- the laser welding method shows translucency or opacity with high reflectivity, and it looks like an achromatic color such as white or gray, or a pastel color such as light red, light blue, light yellow or milky white.
- a laser welding resin member exhibiting a so-called light-colored white hue can be easily welded to a laser by irradiating a laser beam. Further, it is possible to obtain a welded product having a small color difference between the laser light transmitting resin member and the laser light absorbing resin member. According to this method, welding of a member such as a white thermoplastic resin housing that should precisely join the resin member while avoiding vibration and heat can be easily and reliably performed.
- this laser-welding method it is possible to easily weld even fine and complicated-shaped members with sufficient reproducibility, sufficient strength, high yield, and high yield.
- Laser welding of members with white hues is possible, so that a wide range of products have beautiful white hues that meet the tastes of consumers. The color appearance can be finished.
- such a laser welding method does not require a laser light source to come into contact with the welding site, is not exposed to stresses such as mechanical vibrations, does not generate dust, etc., and is locally heated and welded. The effect of heat on the surrounding area is very small, and the welded part is hard to see and the finish is beautiful.
- FIG. 1 is a diagram showing a laser-transmissive resin member formed of a laser-transmissive resin composition to which the present invention is applied and a laser-absorbent resin member during laser welding. is there.
- FIG. 2 is a view showing a configuration of a laser-light-transmitting resin member and a laser-light-absorbing resin member for performing a laser welding method to which the present invention is applied.
- FIG. 3 is a diagram showing another configuration of a laser light transmitting resin member and a laser light absorbing resin member for performing a laser welding method to which the present invention is applied.
- a laser light transmitting resin member 1 as shown in FIG. 2 and a laser light absorbing layer 8 which is a resin film containing a laser light absorbing agent partially reduce the laser light absorbing property. This will be described using laser welding with the resin member 2 as an example.
- a laser beam transmitting resin member 1 was prototyped as follows. A thermoplastic resin, a white pigment, and additives such as a coloring agent, if necessary, are mixed by a mixer to prepare a laser light transmitting resin composition. Press this composition As shown in Fig. 2, a laser-transparent resin member 1 is formed by a molding method such as extrusion molding, injection molding, or compression molding. Is molded. On the other hand, a composition of a thermoplastic resin, additives such as white pigments and colorants, etc., and a laser light absorber, if necessary, is molded, and a step 5 having a half thickness with an upper surface chipped near one end is formed. Thus, a plate-shaped white resin material 7 which may or may not contain a laser light absorber is obtained.
- thermoplastic resin an absorber that absorbs the wavelength of the laser beam used for laser welding, and additives such as a coloring agent, if necessary, are mixed by a mixer, and the mixture is used in injection molding or extrusion molding.
- a resin film 8 containing a laser-light absorber is formed by a simple forming method.
- the step 4 of the resin member 1 that transmits laser light and the step 5 of the resin member 2 that absorbs laser light are brought into contact with each other via the resin film 8 that is a laser light absorbing layer. .
- laser light 3 is irradiated from above the transparent resin member 1 (see FIG. 1).
- Part of the laser beam 3 passes through the step 4 of the transmissive resin member 1 and reaches the resin film 8 which is absorptive of the laser beam.
- heat is efficiently generated.
- the permeable resin member 1 and the white resin material 7 of the absorbent resin member 2 are melted and fused via the resin film 8.
- the permeable resin member 1 and the absorptive resin member 2 are welded with sufficient strength at the welding portion 6 via the resin film 8.
- the energy amount of the laser beam irradiation, the resin film 8 Considering the laser light absorptance of the resin, selecting the resin material of the laser light transmitting resin member that is easy to laser weld, selecting additives and colorants that do not hinder laser welding, and considering the shape of the laser light transmitting resin member, It is important to determine the thickness of the resin film 8 appropriately.
- the advantage of this embodiment is that, since the resin film 8 contains a light absorbing agent, the raw material resin of the white resin material 7 forming the absorbent resin member 2 can be appropriately adjusted without considering the laser light transmission and absorption. The point is that the selected resin can be used.
- the material resin of the resin member 1 having laser light transmittance and the resin member 2 having the ability to absorb laser light may be the same or different. This makes it possible to reduce the color difference ⁇ ⁇ between the transparent resin member 1 and the white resin member 7 of the absorbent resin member 2 to 0.3 or less. Furthermore, even if a resin film 8 containing inexpensive black carbon black, aniline black, and nigricine, which are laser light absorbers, is used, the resin is absorbed through the laser light absorber resin member 1. The finish is beautiful because the film 8 is not visible.
- the laser welding method shown in FIG. 2 has been described.As shown in FIG. 3, the laser light absorbing property is partially controlled by the ink or laser ink containing a laser light absorbing agent and the coating layer 9 of the paint.
- a laser welding method may be used in which the resin member 2 that is temporarily provided and the resin member 1 that transmits laser light are used. After applying ink or Z or paint on the step 4 of the resin member 1 that transmits laser light to form the laser light absorbing layer 9 and then contacting the step 5 of the white resin material 7, the laser light is absorbed.
- the resin member 2 and the laser light-absorbing resin member 1 which may partially have a property (not shown) may be a laser welding method.
- the coating layer 9 which is a laser light absorbing layer can be obtained by applying, for example, an ink or Z containing a laser light absorbing agent and, if necessary, a resin and a paint. This application can be done by spraying, It is applied by any application method such as painting with a pen, brush, brush or the like.
- the coating layer 9 is preferably applied to a thickness of 0.1 mm or less.
- additives such as a thermoplastic resin, a white pigment, a colorless or substantially colorless absorber that absorbs the wavelength of laser light used for laser welding, and, if necessary, a colorant and the like are mixed with a mixer.
- a method of laser welding by irradiating with one light may be used.
- Colorless or substantially colorless laser light absorbers include squaric acid derivatives and immonium dyes.
- a gray laser light transmitting resin member containing a white pigment and a laser light transmitting black colorant is superimposed on a gray laser light absorbing resin member having a white pigment and a black laser light absorbing agent. Irradiation may be performed by laser welding.
- EBI ND LTW which is a master batch of black colorant as laser light transmissive black colorant-8170C, 8120C, 8620C, 8730C, 8730C, 8200, 8250C and 8300 (all are trade names manufactured by Orient Chemical Co., Ltd.).
- black laser light absorbers include carbon black, arlin black, and niguguchi Shin.
- a laser welding method may be used in which a light-colored laser light-absorbing resin member containing a colorless laser light absorbent is superposed and irradiated with laser light.
- a chromatic laser transmissive colorant quinophthalone yellow dye, perinone red dye, yellow, red, green, blue, or purple anthraquinone dye Fees.
- Laser welding may be performed by superposing the members and irradiating the laser with one light.
- the chromatic laser light absorber include phthalocyanine-based blue and green dyes and anthraquinone-based dyes (absorbers for 808 nm wavelength).
- a method of laser welding a laser light transmitting resin member having a different pastel color, a white pigment, and a chromatic laser light absorber may be used.
- the thermoplastic resin constituting the laser light transmitting resin member may be, for example, polyamide resin, polyethylene resin, polypropylene resin, polybutylene terephthalate resin, or polyethylene resin.
- Terephthalate resin, polyphenylsulfide resin, polyetheretherketone resin, polycarbonate resin, liquid crystal polymer, polystyrene resin, acryl resin, polyacetal resin, polyphenylether resin, acrylonitrile 'styrene Copolymer resin or atalylonitrile butadiene styrene copolymer resin may be used. These resins may be used alone or in combination as a thermoplastic resin.
- the thermoplastic resin is more preferably a polyamide resin, a polypropylene resin, or a polycarbonate resin.
- the thermoplastic resin includes a copolymer or a mixture thereof mainly containing the above resin; a mixture of these resins with an elastomer such as rubber or a rubber-like resin; and a resin containing 10% by weight or more of these resins. It may be a polymer ally.
- thermoplastic resin constituting the laser light transmitting resin member a resin having good laser light transmitting property is appropriately selected and used from these resins.
- this resin member one containing an appropriate additive depending on the use and purpose may be used. Additives include fillers and flame retardants.
- the filler examples include talc, my power, calcium hydrogen carbonate, calcium carbonate, glass fiber, glass flake, glass beads, wollastonite, and barium sulfate.
- the filler is used for improving moldability and strength, and is preferably contained in an amount of 5 to 50 parts by weight based on 100 parts by weight of the thermoplastic resin.
- White fillers are also suitable, but glass fibers are preferred in view of laser light transmission.
- the glass fiber has a fiber length of 2 to 15 mm and a fiber diameter of 1 to 20 ⁇ m, and may be in any form, for example, roving, Mildofever, etc., alone or in combination. They may be used in combination.
- the flame retardant examples include known flame retardants, specifically, halogen-containing compounds such as tetrabromobisphenolene A derivative, hexabromodiphene / lethenole and tetrabromophthalic anhydride; triphenylphosphate, triphenylphospha Phosphorus-containing compounds such as silica, red phosphorus and ammonium polyphosphate; nitrogen-containing compounds such as urea and guanidine; silicon-containing compounds such as silicon oil, organic silane and aluminum silicate; antimony trioxide and antimony phosphate; And the like.
- halogen-containing compounds such as tetrabromobisphenolene A derivative, hexabromodiphene / lethenole and tetrabromophthalic anhydride
- triphenylphosphate triphenylphospha Phosphorus-containing compounds such as silica, red phosphorus and ammonium polyphosphate
- nitrogen-containing compounds such as urea and
- color assistants dispersants, stabilizers, plasticizers, modifiers, ultraviolet absorbers or light stabilizers, antioxidants, antistatic agents, lubricants, release agents, crystallization accelerators, crystal nucleating agents Or an elastomer for improving impact resistance may be included as an additive.
- This additive is preferably contained in an amount of 0.1 to 1.0 part by weight based on 100 parts by weight of the thermoplastic resin.
- the same or different constituent components of the laser light transmitting resin member can be used without considering the laser light transmitting property.
- a resin containing thermoplastic resin, white pigment or Z, various colorants, and other additives is used.
- the amount of the white pigment may be in excess of the amount contained in the laser light transmitting resin member, the amount of the white pigment that is substantially the same as the amount contained in the laser light transmitting resin member is This is preferable because a non-deposited product can be obtained.
- thermoplastic resins white pigments or Z and various colorants, fillers for further improving moldability and strength, additives such as flame retardants, auxiliary colorants according to applications and purposes, dispersants Agents, stabilizers, plasticizers, modifiers, UV absorbers or light stabilizers, antioxidants, antistatic agents, lubricants, release agents, crystallization promoters, crystal nucleating agents, or for improving impact resistance
- additives such as flame retardants, auxiliary colorants according to applications and purposes, dispersants Agents, stabilizers, plasticizers, modifiers, UV absorbers or light stabilizers, antioxidants, antistatic agents, lubricants, release agents, crystallization promoters, crystal nucleating agents, or for improving impact resistance
- a material containing an elastomer may be used.
- the resin material that transmits laser light and the resin material that absorbs laser light include transparent thermoplastic resin pellets or powder, and, if necessary, white pigment, powdered colorants and other additives.
- the mixture is molded by a molding method exemplified by injection molding, extrusion molding, compression molding, foam molding, blow molding, vacuum molding, injection blow molding, rotational molding, calendar molding, solution casting, and the like. It is preferable to use a molded product.
- the test piece obtained in this example is a laser-absorbing resin member having a layer containing a laser absorbent. Also used as an interim test piece.
- Production Examples 1 to 7 are examples in which a resin composition was prepared, and a production test piece as a laser-transmissive resin member 1 having a whiteness of 50 to 80 was trial-produced.
- a flat plate with a long side of 70 mm x a short side of 18 mm and a thickness of 4 mm, and a step 4 with a thickness of 2 mm is cut off along the short side at one end with a width of 20 mm.
- a production test piece A having a uniform appearance, a uniform hue, and good appearance and surface gloss was obtained.
- a flat plate with a long side of 70 mm X a short side of 18 mm and a thickness of 4 mm is cut off.
- the production test piece F having a uniform appearance, a uniform hue, and good appearance and surface gloss was obtained.
- a plate with a long side of 70 mm x a short side of 18 mm x a thickness of 4 mm, a step with a width of 2 Injection molding was performed to give a production test piece G having a uniform hue, uniform color and good appearance and surface gloss.
- a transmittance measurement test, a whiteness measurement test, and a hue observation test were performed as follows, and the physical properties were evaluated.
- Spectrophotometer (trade name: V-570, manufactured by JASCO Corporation) Each of the test pieces was attached, a portion of the test piece having a step 4 having a thickness of 2 mm (see FIG. 2) was irradiated with a wavelength ⁇ in the range of 400 to 1200 ⁇ , and the transmittance thereof was measured. Table 1 shows the transmittance at a wavelength of 808 nm.
- L * a * b * was measured at the position of the step 4 having a thickness of 2 mm of each test piece (see FIG. 2). Measure the L value, a value, and b value represented by the color system and calculate the following formula (I)
- Production Examples 8 to 11 are examples in which a resin composition was prepared, and a production test piece as a laser light transmitting resin member 1 having a whiteness of at least 80 was produced as a trial.
- (Production Example 8) Trial production of a test piece H for production of a resin member that transmits laser light Polypropylene resin l OOO g (product name: BC05B manufactured by Nippon Polychem Co., Ltd.) and 4.7 g of titanium oxide masterbatch (rutile type oxidation) A titanium resin-containing masterbatch containing 70% by weight, manufactured by Toyo Ink Manufacturing Co., Ltd .: trade name: PP 1 KB66 2) was placed in a stainless steel tumbler, and stirred and mixed for 1 hour to prepare a composition.
- the obtained composition was subjected to an ordinary molding method at a cylinder temperature of 220 ° C. and a mold temperature of 40 ° C. using an injection molding machine (trade name: S i — 50 manufactured by Toyo Kikai Metals Co., Ltd.). As shown in Fig. 2, it is a plate with a long side of 70 mm X a short side of 18 mm and a thickness of 4 mm, and the width along one end of the short side is 2 When injection molding was performed into a shape having a step 4 having a thickness of 2 mm with a lower surface side of 0 mm being chipped, a production test piece H having a uniform appearance, a uniform hue, and a good appearance and surface gloss was obtained without color unevenness.
- Polypropylene resin l OOO g (trade name, manufactured by Nippon Polychem Co., Ltd .: BC 0 5 B) and titanium oxide 30 g (trade name, manufactured by Tika Co., Ltd .: JR—605) are put into a stainless steel tumbler.
- the composition was prepared by stirring and mixing for hours.
- the obtained composition was subjected to injection molding at a cylinder temperature of 220 ° C and a mold temperature of 40 ° C using an injection molding machine (trade name: si-150, manufactured by Toyo Kikai Metals Co., Ltd.) in the usual manner.
- Production Examples 12 to 15 are examples in which a laser-transmissive polypropylene resin composition to which an additive was added was prepared, and a production test piece as a laser-transmissive laser-welded resin member 1 was prototyped.
- Production Examples 16 to 17 are examples in which a laser light transmitting polycarbonate resin composition to which an additive was added was prepared, and a production test piece, which is a laser light transmitting laser welded resin member 1, was produced.
- polycarbonate resin 100 g (trade name: LE XAN 100 0 0) and titanium oxide 36 g (manufactured by Tika Co., Ltd.)
- Product name A comparative production test piece which was molded in the same manner as in Production Example 16 except that JR-605) was used, and was white with uniform color, uniform hue, and good appearance and surface gloss. B was gotten.
- Production Example 18 is an example of trial production of a production test piece for a laser welding resin member having a white laser beam absorbing property.
- Production Example 19 is an example in which a production test piece S, which is a resin member 2 having a laser light absorbing layer 8 having a laser light absorbing layer 8 which is a resin film containing carbon black, was prototyped.
- Production test piece S of Production Example 19 is a production test piece obtained by combining a resin film containing carbon black and a production test piece J obtained as a resin member capable of transmitting laser light.
- Production test piece T of Production Example 20 is a production test piece obtained by combining a resin film containing carbon black and a production test piece M obtained as a resin member that transmits laser light.
- Production Test Specimen U of Production Example 21 is a production test specimen of a combination of a resin film containing carbon black and a production test specimen F obtained as a laser beam transmitting resin member.
- An ink was prepared by uniformly mixing and dissolving the above formulation at 40 ° C.
- the ink was tested for stability over time using a low-temperature / high-temperature device (trade name: INCUBATOR, manufactured by Sanyo Electric Co., Ltd.). Even after storage for 3 months, precipitation of the dye and thickening of the ink composition were observed. I wouldn't.
- This ink was packed into a commercially available marking pen and applied on a step 5 (see Fig. 3) of a manufacturing test piece for resin parts.
- the laser light absorbing layer 9 with a clean and uniform laser light absorbing layer 9 was applied.
- Production Test Piece V of Production Example 22 is a production test piece obtained by applying the above marking ink to a production test piece K obtained as a resin member that transmits laser light.
- Production test piece W of Production example 23 is a production test piece obtained by applying the above-described marking ink to a production test piece M obtained as a resin member that transmits laser light.
- Production test piece X of Production example 24 is a production test piece obtained by applying the above-described marking ink to production test piece F obtained as a resin member that transmits laser light.
- Production test piece Y of Production example 25 is a production test piece obtained by applying the above-described marking ink to production test piece A obtained as a resin member that transmits laser light.
- Production Test Piece Z of Production Example 26 is a production test piece obtained by applying the above marking ink to a production test piece C obtained as a resin member that transmits laser light.
- Examples 1 to 10 are examples in which laser welding applying the present invention was performed using the production test pieces obtained in the above production examples.
- Comparative Example 1 is an example in which the present invention is not applied and laser welding is performed.
- the step 5 of the test piece 2 and the step 4 of each of the test pieces 1 were brought into contact with each other and overlapped.
- a continuous laser beam 3 with a wavelength of 840 nm was applied to the superimposed portion from above the test piece 1 using a diode laser (output from Fine Device) with a power of 30 W, and a running speed of 750 nm. Irradiation was performed while scanning in the direction indicated by the arrow in mm mm.
- the laser beam 3 transmitted through the test piece 1 is absorbed by the test piece 2 and generates heat. The heat is used to melt and fuse the test piece 1 and the test piece 2 in the vicinity of the laser light absorption area.
- a weld was obtained by welding. '
- the laser-transmissive laser-welded member as in the example had a white hue and good laser-beam permeability, and thus was firmly welded.
- This laser welding method uses a resin-like housing for white products such as precision machinery, electronic components, electrical appliances, medical equipment, and daily necessities, which should precisely join resin members while avoiding vibration and heat. It is suitable for simple and reliable welding of components.
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Abstract
Description
Claims
Priority Applications (5)
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US10/566,991 US20060151099A1 (en) | 2003-08-27 | 2004-08-10 | Method for laser welding |
EP04771693A EP1658954A1 (en) | 2003-08-27 | 2004-08-10 | Method for laser welding |
KR1020067003867A KR100758916B1 (ko) | 2003-08-27 | 2004-08-10 | 레이저 용착 방법 |
CNA2004800247155A CN1842410A (zh) | 2003-08-27 | 2004-08-10 | 激光焊接方法 |
JP2005513420A JP3782097B2 (ja) | 2003-08-27 | 2004-08-10 | レーザー溶着方法 |
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JP2003303637 | 2003-08-27 | ||
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WO2005021245A1 true WO2005021245A1 (ja) | 2005-03-10 |
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PCT/JP2004/011732 WO2005021245A1 (ja) | 2003-08-27 | 2004-08-10 | レーザー溶着方法 |
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US (1) | US20060151099A1 (ja) |
EP (1) | EP1658954A1 (ja) |
JP (1) | JP3782097B2 (ja) |
KR (1) | KR100758916B1 (ja) |
CN (1) | CN1842410A (ja) |
WO (1) | WO2005021245A1 (ja) |
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JP4720149B2 (ja) * | 2003-12-02 | 2011-07-13 | 東レ株式会社 | レーザ溶着用着色樹脂組成物およびそれを用いた複合成形体 |
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JP2007112126A (ja) * | 2005-09-21 | 2007-05-10 | Orient Chem Ind Ltd | 成形部材のレーザー溶着体 |
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EP1954474A1 (en) * | 2005-10-19 | 2008-08-13 | E.I. Du Pont De Nemours And Company | Process for laser welding three polymeric layers and article produced by the process |
JP2007231088A (ja) * | 2006-02-28 | 2007-09-13 | Denso Corp | 光吸収性介在物及びこれを含有する接着剤 |
JP2008155519A (ja) * | 2006-12-25 | 2008-07-10 | Hamamatsu Photonics Kk | レーザ溶着方法、レーザ溶着装置、レーザ包装方法、レーザ包装装置及び樹脂フィルム包装製品の製造方法 |
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JP2009184413A (ja) * | 2008-02-04 | 2009-08-20 | Tokai Rika Co Ltd | 加飾エンブレム及び加飾エンブレムの製造方法 |
JP2010076382A (ja) * | 2008-09-29 | 2010-04-08 | Asahi Kasei E-Materials Corp | 円筒状印刷原版の製造方法 |
JP2010076381A (ja) * | 2008-09-29 | 2010-04-08 | Asahi Kasei E-Materials Corp | レーザー彫刻用円筒状印刷原版の製造方法 |
JP2010076383A (ja) * | 2008-09-29 | 2010-04-08 | Asahi Kasei E-Materials Corp | 円筒状印刷原版成形装置 |
JP2013052683A (ja) * | 2012-10-22 | 2013-03-21 | Hamamatsu Photonics Kk | レーザ包装方法及び樹脂フィルム包装製品の製造方法 |
JP2020120519A (ja) * | 2019-01-24 | 2020-08-06 | トヨタ自動車株式会社 | 電力変換器とその製造方法 |
JP7095609B2 (ja) | 2019-01-24 | 2022-07-05 | 株式会社デンソー | 電力変換器とその製造方法 |
Also Published As
Publication number | Publication date |
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KR20060035798A (ko) | 2006-04-26 |
US20060151099A1 (en) | 2006-07-13 |
JP3782097B2 (ja) | 2006-06-07 |
EP1658954A1 (en) | 2006-05-24 |
JPWO2005021245A1 (ja) | 2006-10-26 |
CN1842410A (zh) | 2006-10-04 |
KR100758916B1 (ko) | 2007-09-14 |
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