WO2006095546A1 - Structure et procede pour coller deux elements, recipient a gaz et procede de fabrication dudit recipient a gaz - Google Patents

Structure et procede pour coller deux elements, recipient a gaz et procede de fabrication dudit recipient a gaz Download PDF

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Publication number
WO2006095546A1
WO2006095546A1 PCT/JP2006/302682 JP2006302682W WO2006095546A1 WO 2006095546 A1 WO2006095546 A1 WO 2006095546A1 JP 2006302682 W JP2006302682 W JP 2006302682W WO 2006095546 A1 WO2006095546 A1 WO 2006095546A1
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WIPO (PCT)
Prior art keywords
liner
laser
joining
resin
gas container
Prior art date
Application number
PCT/JP2006/302682
Other languages
English (en)
Japanese (ja)
Inventor
Masaaki Amano
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2006095546A1 publication Critical patent/WO2006095546A1/fr

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Classifications

    • 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
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/58—Snap connection
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B29C66/12464—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered being V-shaped
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said 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
    • B29C66/65—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
    • B29C66/652—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 moving the welding tool around the fixed 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72341—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for gases
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7154—Barrels, drums, tuns, vats
    • B29L2031/7156—Pressure vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • F17C2201/01—Shape
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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    • F17C2201/05—Size
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    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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    • F17C2201/05—Size
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F17C2203/00—Vessel construction, in particular walls or details thereof
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • F17C2203/0658—Synthetics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F17C2209/2118—Moulding by injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a two-member joining structure and joining method for joining substantially cylindrical ends of a pair of resin members.
  • the present invention also relates to a gas container in which a resin liner joins a plurality of liner constituent members, and more particularly, to a gas container having a cylindrical end portion to which the liner constituent members are joined and a method for manufacturing the same.
  • Patent Document 1 describes a structure in which ends of a pair of pipe molded products are joined by laser welding.
  • this joint structure a tapered joint surface formed on the outer surface of the end of one pipe molded product is brought into contact with a reverse tapered joint surface formed on the inner surface of the end of the other pipe molded product.
  • the laser is irradiated to join the joining surfaces together by laser welding.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2 0 0 4-9 0 6 3 0 (FIG. 1, Oppi, 2nd page)
  • such a conventional joining structure has a tapered and reverse tapered joining surface, for example, even when joining thin pipe molded products, the joining area is reduced. This is useful in that it can be increased.
  • the laser irradiation is performed in a state where the joint surfaces of both are simply in contact with each other, there is a possibility that the contact surfaces are not in contact with each other at the time of laser irradiation, which may result in poor bonding. .
  • the present invention provides a two-member joining structure and joining method capable of appropriately joining the ends by laser welding in a state in which the positional deviation between the ends of the pair of resin members is easily suppressed. That is the purpose.
  • the joining structure of the two members is applied to the resin liner of the gas container, and the end portions of the liner constituent members are appropriately restrained by laser welding in a state where positional deviation between the end portions of the liner constituent members is suppressed. It is an object of the present invention to provide a gas container that can be joined and a manufacturing method thereof.
  • the two-member joining structure of the present invention is at least substantially circular.
  • a pair of resin members having cylindrical end portions are engaged with each other by an engaging structure by laser welding. It is a joining structure of two members to be joined, and the clerk structure is provided at the end of one resin member and at the end of the other resin member and is screwed to the other screw. And a female screw.
  • the screw or the female screw is provided at the substantially cylindrical end portion that becomes the joining portion of each resin member, it is possible to irradiate the laser with these being screwed together.
  • the position shift of edge parts can be suppressed suitably, without using a pressurizing jig etc. Therefore, the end portions can be favorably bonded by laser welding.
  • the joint after laser welding is also joined by screw fastening, the strength of the joint can be improved.
  • centering is complicated, but it can be easily centered by the screwed structure of male and female threads.
  • the resin member having at least a substantially cylindrical end
  • the resin member generally has a shape such as a cylindrical shape, an annular shape, a bowl shape, or a dome shape.
  • the inner peripheral surface of the end portion provided with the female screw has an inclined joint surface
  • the outer peripheral surface of the end portion provided with the male screw is in contact with the inner peripheral surface. It is preferable to have a joint surface that matches and abuts the joint surface, and the joint surfaces are joined by laser welding.
  • the contact area (joint area) between the joint surfaces can be increased, and it can be useful for centering the joint surfaces.
  • the threaded screw and the female screw are joined together with the joining surfaces by laser welding.
  • the joint area can be further increased, and the sealing performance at the joint after laser welding can be enhanced.
  • the end portion provided with the female screw is formed of a laser transmitting resin
  • the end portion provided with the male screw is formed of a laser absorbing resin
  • the end portions can be appropriately joined to each other by providing the end portions with the characteristics of laser transmission or absorption.
  • the characteristics with respect to this type of laser may be imparted only to the end portion, but the resin member can be manufactured more easily if the entire resin member including the end portion is imparted.
  • the male screw and the female screw are formed of a metal material.
  • the male screw or the female screw may be provided at the end of the resin member by adhesion or the like, or may be provided at the end of the resin member by insert molding on the resin member.
  • the male screw is a tapered male screw
  • the female screw is a tapered female screw
  • the two-member joining method of the present invention for achieving the above-described object is a two-member joining method for joining a pair of resin members having at least substantially cylindrical ends, and joining the ends to each other. Laser irradiation is performed with the male screw provided at the end of one of the resin members and the screw provided for the other resin member being engaged, and the ends are joined by laser welding. Is.
  • the joint surfaces are laser-bonded to each other. Join by welding.
  • the joint surfaces are screwed up until they come into contact with each other, so that the joint surfaces to be laser welded can be reliably brought into close contact with each other. Thereby, the laser welding of the joining surfaces can be performed satisfactorily and reliably.
  • the joining surfaces are joined to each other in the circumferential direction by laser welding. By doing so, the entire circumference of the joint surfaces is line welded by the laser.
  • the screwed male screw and female screw are joined together with the joining surfaces by laser welding.
  • the end of one resin member is formed of a laser-transmitting resin, and the end of the other resin member is formed of a laser-absorbing resin. Laser is irradiated toward the laser-absorbing edge, and the joining surfaces are joined together by laser welding.
  • the male screw and the female screw are formed of a metal material.
  • the male screw is a tapered male screw
  • the female screw is a tapered female screw. .
  • the gas container of the present invention comprises a pair of resin members as a pair of liner constituent members, and the resin configured by joining the liner constituent members using the above-described two-member joining method of the present invention. And a reinforcing layer disposed on the outer periphery of the resin liner.
  • the gas container since the above-described bonding method is used to integrally bond the pair of liner components, it is possible to configure a well-bonded resin liner. Since the gas container is equipped with this resin liner, the gas container can be improved in airtightness and productivity.
  • Another gas container of the present invention for achieving the above object is a gas container having a resin liner, wherein the resin liner is formed by joining a plurality of liner constituent members having at least a substantially cylindrical end,
  • an engagement structure that engages the substantially cylindrical ends with each other, and a laser welding portion that joins the substantially cylindrical ends with each other by laser welding are provided at a joining portion between the liner constituent members.
  • the engagement structure includes: a male screw provided on one of the end portions; and a female screw provided on the other of the end portions and screwed to the male screw.
  • the end portions of the liner constituent members can be engaged with each other by the engaging structure, and laser can be irradiated in this engaged state.
  • This eliminates the need for pressure jigs In both cases, the positional deviation between the end portions can be suitably suppressed, and the end portions can be favorably joined by laser welding.
  • the engaging structure is a screwed structure, the ends can be held in close contact with each other, and centering at the time of joining becomes easy. Further, even after laser welding, the joint is engaged by the engagement structure in addition to the laser weld, so that the strength of the joint can be improved.
  • the laser welding portion refers to a portion formed by melting a part of the end portion of one liner constituent member and a part of the end portion of the other liner constituent member.
  • the inner peripheral surface of the end portion provided with the female screw has an inclined joint surface
  • the outer peripheral surface of the end portion provided with the male screw aligns with and contacts the joint surface.
  • the laser welded portion is formed by melting the joint surfaces.
  • the end portion provided with the internal thread is formed of a laser-transmitting resin, and the external thread is provided, similarly to the above-described two-member joint structure. It is preferable that the end portion is made of a laser-absorbing resin.
  • the male screw and the female screw are preferably made of a metal material.
  • the external thread may be formed integrally with an end portion provided with the external thread
  • the internal thread may be formed integrally with an end portion provided with the internal thread.
  • the male screw is a tapered male screw and the female screw is a tapered female screw.
  • the outer peripheral surfaces of the liner constituent members are joined to each other.
  • a reinforcing layer and other layers can be appropriately formed on the outer periphery of the resin liner.
  • the laser welding part is provided over the circumferential direction of the resin liner.
  • the resin liner can be joined in the circumferential direction.
  • at least one of the plurality of liner constituent members has a communication portion for communicating the hollow inside and the outside of the resin liner on the opposite side to the joint portion to be joined to the other liner constituent members. 'is doing.
  • gas can be filled in or discharged from the hollow interior of the resin liner through the communicating portion.
  • the gas container of the present invention is configured to be capable of storing high-pressure combustible gas.
  • the combustible gas is, for example, hydrogen gas or compressed natural gas.
  • the gas container according to the present invention includes a container body having a resin liner and a reinforcing layer disposed on the outer periphery of the resin liner, and a base provided at one end of the container body.
  • the method for producing a gas container of the present invention for achieving the above object is a method for producing a gas container having a resin liner formed by joining a plurality of liner constituent members having at least a substantially cylindrical end, Engaging the substantially cylindrical end of one liner component to be joined to each other, the substantially cylindrical end of the other liner component, and laser irradiation after the engaging step
  • An irradiation step of joining the end portions by laser welding, and the engaging step includes a male screw provided at a substantially cylindrical end portion of one liner constituent member, and the other liner constituent member. This is performed by screwing a screw to be provided at the end of the substantially cylindrical shape.
  • the laser beam is irradiated with the end portions of the liner constituent members screwed together, the laser beam is suitably suppressed without misalignment between the end portions without using a pressurizing jig or the like.
  • the ends can be joined well by welding.
  • the strength of the joint can be improved because the ends are screwed together.
  • the following may be performed similarly to the above-described two-member joining method.
  • the joint surface of the end portion provided with the male screw and the female screw are provided.
  • the male screw and the female screw are screwed together until they come into contact with the joined surface at the end, and the irradiation process is performed by joining the contact surfaces in contact with each other by laser welding.
  • this irradiation step is performed by joining the joining surfaces in the circumferential direction by laser welding.
  • the irradiation step is performed by joining a screwed male screw and a female screw together with the joining surfaces by laser welding.
  • the substantially cylindrical end of one liner component to be joined to each other is formed of a laser-transmitting resin, and the substantially cylindrical end of the other liner component is formed.
  • the male screw is a tapered male screw
  • the female screw is a tapered female screw.
  • the male screw made of a metal material is provided by insert molding on one liner constituent member to be joined to each other, and the other
  • the method further includes the step of providing a female screw made of a metal material by insert-molding the liner component.
  • Another gas container of the present invention for achieving the above object is a gas container having a resin liner, wherein the resin liner is formed by joining a plurality of liner constituent members having a cylindrical end, The joining portion between the liner constituent members has an engagement structure that engages the cylindrical end portions, and a laser welding portion that joins the cylindrical end portions by laser welding. .
  • another gas container manufacturing method of the present invention has a cylindrical end.
  • a method of manufacturing a gas container having a resin liner formed by joining a plurality of liner constituent members having a section, the cylindrical end of one liner constituent member to be joined together, and the other liner constituent member An engaging step for engaging the cylindrical end portions, and an irradiating step for joining the end portions by laser welding by irradiating a laser after the engaging step.
  • the end portions of the liner constituent members can be engaged with each other by the engaging structure, and the laser can be irradiated in this engaged state.
  • the positional deviation between the end portions can be suitably suppressed without using a pressing jig or the like, and the end portions can be favorably joined by laser welding.
  • the joint portion is engaged by the engagement structure in addition to the laser weld portion, so that the strength of the joint portion can be improved.
  • the resin member having a cylindrical end portion may have a cylindrical shape, a rectangular cylindrical shape such as a triangle or a square, an annular shape, a bowl shape, or a dome shape. included.
  • a snap fit can be engaged with the force of press-fitting.
  • the positional deviation between the end portion of one resin member and the end portion of the other resin member can be easily suppressed.
  • the ends can be appropriately joined by laser welding.
  • the gas container and the gas container manufacturing method of the present invention described above when joining one liner constituent member of the resin liner and the other liner constituent member in the same manner, the positions of the end portions are joined together. Since the shift can be suppressed, the end portions can be appropriately joined together.
  • Fig. 1 shows the two-member joint structure according to the first embodiment. It is sectional drawing shown.
  • FIG. 2 is a cross-sectional view showing a state after provisional joining of the two-member joining structure according to the first embodiment.
  • FIG. 3 is a cross-sectional view showing a state after laser welding of the two-member joint structure according to the first embodiment.
  • FIG. 4 is a cross-sectional view showing a state before joining in the two-member joining structure according to the second embodiment.
  • FIG. 5 is a cross-sectional view showing the configuration of the gas container according to the third embodiment.
  • FIG. 6 is an enlarged cross-sectional view showing a joined portion of the gas container according to the third embodiment.
  • FIG. 7 is a cross-sectional view showing the configuration of the gas container according to the fourth embodiment.
  • FIG. 8 is a modified example of the gas container according to the third embodiment, and is a cross-sectional view showing an enlarged joining portion.
  • FIG. 9 is an enlarged cross-sectional view of the joint portion of the gas container according to the fifth embodiment.
  • pipe material 1 (first resin member) made of laser-absorbing resin and pipe material 2 (second tree made of laser-transmitting resin) The oil member) is joined to form a single pipe-shaped resin molded product.
  • Both pipe materials 1 and 2 are formed in a cylindrical shape with the same outer diameter as a whole, and are joined with their axial directions matched.
  • the laser-absorbing pipe material 1 includes a barrel portion 1 1 extending a predetermined length in the axial direction thereof, and a substantially cylindrical joining end portion 1 2 (first portion) formed on one end side of the barrel portion 11 that is opened. 1 end) and The outer peripheral surface of the joining end portion 12 is formed on the distal end side, and has a predetermined diameter from the base end side of the male screw 21 to the trunk portion 11. And a step surface 23 formed between the joint surface 2 2 and the outer peripheral surface of the body portion 11.
  • the male screw 21, the joint surface 22, and the step surface 23 are formed along the circumferential direction of the joint end portion 12.
  • the external thread 21 is formed together with the overall shape of the pipe material 1 when the pipe material 1 is formed using various molding methods such as injection molding.
  • the male screw 21 is composed of a parallel male screw extending a predetermined length in the axial direction. However, by forming the male thread 21 with a tapered male thread, it is possible to increase the tightness resistance in the threaded portion when the pipe materials 1 and 2 are joined together.
  • the joint surface 22 is integrally connected to the base end of the male screw 21 and is formed in a tapered shape.
  • the step surface 23 is composed of an inclined surface that is slightly inclined toward the body part 11 with respect to the direction orthogonal to the axial direction.
  • the stepped surface 23 may be a surface perpendicular to the axial direction, or may be an inclined surface slightly inclined toward the bonding surface 22 with respect to the direction orthogonal to the axial direction.
  • the laser-transmitting pipe material 2 is formed on a barrel portion 3 1 extending in a predetermined length in the axial direction thereof, and on one end side of the barrel portion 31 that is open, and joined to a laser-absorbing joining end portion 12.
  • the outer peripheral surface of the joining end portion 32 is continuous with the outer peripheral surface of the body portion 31, and has a chamfered tip surface 40.
  • the tip surface 40 is configured to be able to contact the stepped surface 23 in the circumferential direction so as to align with and be received by the stepped surface 23 described above. Has been.
  • the inner peripheral surface of the joining end 3 2 is formed on the body 3 1 side and has a female screw 4 1 having a diameter larger than the inner diameter of the body 3 1 and the front surface 4 from the front end side of the female screw 4 1. And a joint surface 42 inclined at a predetermined angle from 0.
  • the female thread 41 is formed together with the overall shape of the pipe material 2 when the pipe material 2 is formed using various molding methods such as injection molding.
  • the female screw 41 is composed of a parallel female screw extending in a predetermined length in the axial direction corresponding to the male screw 21 made of a parallel male screw. Due to the screwed structure (engagement structure) of the male screw 21 and the female screw 41, the joining end portions 1 2 and 3 2 are engaged with each other.
  • male thread 21 is formed with a tapered male thread
  • female thread 41 is also formed with a tapered female thread.
  • the joint surface 42 is integrally connected to the tip of the female screw 41 and is formed in a reverse taper shape.
  • the joint surface 42 is configured to be aligned with the joint surface 22 and to be able to contact the joint surface 22 from the outer side in the radial direction in the circumferential direction. It is preferable to smooth the surfaces of the joint surfaces 2 2 and 4 2 so that the joint surfaces 2 2 and 4 2 are in contact with each other without a gap.
  • the angles of the joint surfaces 2 2 and 4 2 are arbitrary, but may be any angles that can transmit or receive a laser beam from a laser torch 50 as a laser irradiation apparatus described later.
  • the laser transmissive resin constituting the pipe material 2 has thermoplasticity. This laser-transmitting thermoplastic resin only needs to be transparent to the laser so that the energy necessary for laser welding reaches the joining surface 22 on the laser-absorbing side. Therefore, even a laser-transmitting thermoplastic resin may have a slight laser-absorbing characteristic.
  • the laser-transmitting thermoplastic resin include polyethylene, polypropylene, nylon 66, and the like, and those obtained by adding a reinforcing fiber such as glass fiber or a colorant to these may be used.
  • laser transmissive pipe material 2 is white, translucent or transparent Formed.
  • the laser-absorbing resin constituting the pipe material 1 has thermoplasticity.
  • the laser-absorbing thermoplastic resin only needs to have a laser-absorbing property and may be any material that generates heat and melts with the absorbed laser.
  • Examples of the laser-absorbing thermoplastic resin include polyethylene, polypropylene, nylon 66, and the like, and those obtained by adding a reinforcing fiber such as glass fiber or a colorant may be used.
  • the laser-absorbing thermoplastic resin is formed of the same resin as the laser-transmitting thermoplastic resin, it is formed by adding more carbon than the laser-transmitting thermoplastic resin. Therefore, the laser-absorbing pipe material 1 is formed in black, for example.
  • the entire pipe material 2 is not laser-permeable and the entire pipe material 1 is a laser-absorbing resin. Absorptive properties may be provided.
  • a pair of pipe materials 1 and 2 are both formed of a laser-transmitting resin, and a laser-absorbing absorbent is applied to the joining end (or joining surface) of one of the pipe materials. Or a sheet containing this type of absorbent may be attached.
  • Fig. 3 the method of joining the two pipe materials 1 and 2 will be explained. First, the joining end portion 12 of the pipe material 1 is inserted into the inside of the joining end portion 3 2 of the pipe material 2, and a part of the male screw 21 is screwed into a part of the female screw 41.
  • the male screw 2 1 and the female screw 4 1 are screwed in a predetermined length in the axial direction, and the step surface 2 3 And the tip surface 40 are in contact with each other in the circumferential direction.
  • the pair of pipe materials 1 and 2 are temporarily joined (provisionally joined).
  • the boundary between the outer peripheral surface of the joint end portion 12 and the outer peripheral surface of the joint end portion 32 is substantially flush with no gap.
  • the contact between the joint surface 2 2 and the joint surface 4 2 when screwing is performed by adjusting the lengths of the male screw 2 1 and the thread 4 1 or the stepped surface 2 3. And the tip surface 40 can be confirmed.
  • the pair of pipe materials 1 and 2 in the temporarily joined state are joined by laser welding.
  • Laser welding is performed by driving a laser torch 50 arranged outside a pair of pipe materials 1 and 2 so that the laser emitted from the laser torch 50 is laser-absorbing from the laser-transmitting joint end 32 side. This is done by irradiating the joint end 1 2.
  • the irradiated laser passes through the distal end side of the joining end portion 32 and reaches the laser-absorbing joining surface 22.
  • the resin on the joining surface 22 is heated and melted.
  • the resin of the laser-transmitting bonding surface 42 is heated and melted by heat transfer from the bonding surface 22.
  • the melted resin is cooled and solidified to form a laser welded portion 60 that integrally joins the joining surfaces 2 2 and 4 2 to each other.
  • the pair of pipe members 1 and 2 in a temporarily joined state are rotated around the axis by a rotating device (not shown).
  • the joining surface 22 is sequentially heated and melted in the circumferential direction
  • the joining surface 42 is sequentially heated and melted in the circumferential direction by this heat transfer. Therefore, when the pair of temporarily connected pipe materials 1 and 2 are rotated at least once, a laser welding portion 60 is formed in which the joining surfaces 2 2 and 4 2 are joined together in the circumferential direction. .
  • the pair of pipe materials 1 and 2 is changed from the temporarily joined state to the fully joined state (that is, completely joined state).
  • the rotating device rotates the pair of pipe members 1 and 2 so as to tighten the screws, the adhesion between the joint surfaces 2 2 and 4 2 can be further enhanced.
  • the pair of pipe materials 1 and 2 may be configured to rotate relative to the laser torch 50. Therefore, instead of rotating the pair of pipe materials 1 and 2 directly, the laser torch 50 is connected to the pair of pipe materials 1 and 2. You may make it rotate directly around. Alternatively, the pair of pipe members 1 and 2 and the laser torch 50 may be rotated in the same direction or in the opposite direction.
  • the laser emitted from the laser torch 50 can be a semiconductor laser or the like, but is not limited to this, and the type of laser is not limited to the laser-transmitting junction end 32. It is appropriately selected in consideration of properties including the thickness of fat.
  • various conditions such as the laser output (irradiation amount) and the rotational speed of the pair of pipe materials 1 and 2 may be appropriately set according to the properties of the pipe materials 1 and 2.
  • the joining surfaces 2 2 and 4 2 are formed by the screwed structure of the male screw 21 and the female screw 41. It can be held so that they are in close contact with each other. As a result, it is possible to irradiate the laser while suitably suppressing the displacement between the joining surfaces 2 2 and 4 2.
  • the joining surfaces 2 2 and 4 2 can be satisfactorily joined by laser welding without using a pressurizing jig.
  • the joint part of the pair of pipe materials 1 and 2 after laser welding is joined not only by the laser welding part 60 but also by screw fastening with a screwed structure, the joint strength of this joint part. And the tightness can be improved.
  • the threaded male screw 21 and female screw 41 may be irradiated with laser so that the screwed portions of the male screw 21 and female screw 41 are also joined by laser welding.
  • the joining surface 22 is tapered and the joining surface 42 is inverted taper, but of course, these may be formed by a flat surface orthogonal to the axial direction, or may be formed by a stepped surface. May be.
  • the pipe material (1, 2) has been described as an example of the lumbering member, it can be applied to various resin molded products such as automobile parts and piping parts.
  • the retainer hold is constituted by a plurality of resin members
  • the screw structure may be provided as described above, and the resin members may be joined by being irradiated with laser in a state where the resin members are screwed together.
  • the two-member joint structure and the joint method according to the second embodiment will be described focusing on the points of focus.
  • the difference from the first embodiment is that the male screw 21 and the female screw 41 are formed of a metal material. Note that portions common to the first embodiment are denoted by the same reference numerals as in the first embodiment, and detailed description thereof is omitted.
  • the metal sleeve 70 having the external thread 21 on the outer peripheral surface is provided on the outer periphery of the small-diameter cylindrical portion 72 formed at the tip of the joint end portion 12.
  • the metal sleep 70 is formed by insert-molding the pipe material 1.
  • it can be provided by being fitted to the outer periphery of the small-diameter cylindrical portion 72, or may be bonded in this fitted state.
  • the metal sleep 80 having the internal thread 41 on the inner peripheral surface is provided on the inner periphery of the cylindrical portion 82 formed at the back of the joint end portion 32.
  • the metal sleeve 80 is formed by insert-molding the pipe material 2, but may be fitted to the cylindrical portion 82 or may be bonded in this state.
  • Examples of the metal type of these metal sleeves 70 and 80 include, but are not limited to, steel.
  • the external thread 21 may be formed with a tapered external thread and the internal thread 41 may be formed with a tapered internal thread.
  • the male screw 21 and the female screw 41 are made of metal, it is possible to obtain a stronger fastening force than when these are made of resin. As a result, it is possible to more appropriately suppress the positional deviation between the joining surfaces 2 2 and 4 2, and to join the joining surfaces 2 2 and 4 2 favorably by laser welding. can do. Also in this embodiment, various modifications as described in the first embodiment can be applied.
  • a resin sleeve having an external thread 21 on the outer peripheral surface may be formed using a resin harder than the resin of the pipe material 1.
  • a resin harder than the resin of the pipe material 2 may be used to constitute a resin sleeve having the internal thread 41 on the inner peripheral surface.
  • the two-member joining structure of the first embodiment is applied to a resin liner of a gas container, and the end portions of the liner constituting members constituting the resin liner are joined together.
  • the structure of the gas container will be described, and then a method for manufacturing the gas container will be briefly described.
  • the gas container 1 0 1 includes a sealed cylindrical container body 1 0 2 as a whole, and caps 1 0 3 and 1 0 3 attached to both ends in the longitudinal direction of the container body 1 0 2. And.
  • the inside of the container body 10 2 is a storage space 10 5 for storing various gases.
  • the gas container 101 can be filled with a normal pressure gas, or can be filled with a gas whose pressure is increased as compared with the normal pressure. That is, the gas container 101 of the present invention can function as a high-pressure gas container.
  • the fuel gas prepared under high pressure is decompressed and used for power generation by the fuel cell.
  • the gas container 10 1 of the present invention can be applied to store a high-pressure combustible fuel gas, and can store hydrogen gas as a fuel gas, compressed natural gas (CNG gas), or the like. it can.
  • the pressure of the hydrogen gas filled in the gas container 10 1 is, for example, 35 MPa or 7 OMPa, and the pressure of the CNG gas is, for example, 20 MPa.
  • the high-pressure hydrogen gas container 100 will be described as an example.
  • the container body 102 has a two-layer structure of an inner resin liner 1 1 1 (inner shell) having gas barrier properties and a reinforcing layer 1 1 2 (outer shell) disposed on the outer periphery of the resin liner 1 1 1 have.
  • the reinforcing layer 1 1 2 is made of, for example, FRP containing carbon fiber and an epoxy resin, and is attached so as to cover the outer surface of the resin liner 1 1 1.
  • the base 103 is formed of a metal such as stainless steel, for example, and is provided at the center of the hemispherical end wall portion of the container body 10 2. 'Female threads are engraved on the inner peripheral surface of the opening of the base 1 0 3, and functional parts such as piping and valve assembly 1 1 4 (bulb body) are connected to the base through this female thread. 1 0 3 can be screwed in and connected.
  • FIG. 5 an example in which the pulp assembly 1 14 is provided on only one of the caps 10 3 and 10 3 is indicated by a two-dot chain line.
  • a gas container 10 1 in a fuel cell system is connected to a storage space 1 0 5 and an external gas flow not shown through a pulp assembly 1 1 4 that integrally incorporates piping elements such as pulp and joints.
  • the storage space 1 0 5 is filled with hydrogen and hydrogen is released from the storage space 1 0 5.
  • the bases 103 and 103 are provided at both ends of the gas container 101, the base 1003 may be provided only at one end.
  • the resin liner 1 1 1 is formed by joining a pair of liner components 1 2 1 and 1 2 2 (split body) having substantially the same shape divided into two at the center in the longitudinal direction by laser welding. .
  • the resin liner 11 1 1 inside the hollow is configured by joining the half-hollow liner constituent members 1 2 1 and 1 2 2 together by laser welding.
  • the liner constituent member 1 2 1 (second liner constituent member) is, for example, a laser-transmitting thermoplastic resin similar to the pipe member 2 of the first embodiment. It is formed with.
  • the liner constituent member 1 2 2 (first liner constituent member) is a laser-absorbing heatable material similar to the pipe material 1 of the first embodiment. It is made of plastic resin.
  • the pair of liner constituent members 1 2 1, 1 2 2 have barrel portions 1 3 1, 1 4 1 extending a predetermined length in the axial direction of the resin liner 1 1 1, respectively. Both end sides in the axial direction of the body portions 1 3 1 and 1 4 1 are open.
  • the liner component 1 2 1 is composed of a return portion 1 3 2 formed at the reduced diameter end portion of the end portion of the body portion 1 3 1 and a communication portion opened at the center of the return portion 1 3 2 1 3 3 and a substantially cylindrical joining end portion 1 3 4 (second end portion) on the other end side of the body portion 1 3 1.
  • the return portion 1 3 2 functions to ensure the strength of the liner component 1 2 1.
  • a base 1 0 3 is located between the outer peripheral surface of the return portion 1 3 2 and the end of the reinforcing layer 1 1 2, and the base 1 0 3 is fitted to the communication portion 1 3 3.
  • the joining end portion 1 3 4 is formed in the same manner as the joining end portion 3 2 of the pipe material 2 of the first embodiment. That is, as shown in FIG. 6, the joining end portion 1 3 4 has a tip surface 15 51 chamfered on the outer peripheral surface, and has a female screw 15 2 and a joining surface 15 3 on the inner peripheral surface. is doing.
  • the tip surface 151, female screw 152, and joint surface 1553 are configured in the same manner as the tip surface 40, female screw 41, and joint surface 42 of the first embodiment.
  • the tip face 151, female thread 1552, and joint surface 1553 can be applied with the same modification (for example, a taper female thread) as in the first embodiment. The detailed explanation is omitted here.
  • the other liner component 1 2 2 is composed of a return portion 1 4 2 formed at a reduced diameter end portion of one end side of the body portion 1 4 1, and a communication portion 1 opened at the center portion of the return portion 1 4 2. 4 3 and a substantially cylindrical joining end portion 14 4 (first end portion) on the other end side of the body portion 14 1.
  • the return portion 1 4 2 functions to ensure the strength of the liner component member 1 2 2, and the base 1 0 3 is fitted to the communication portion 1 4 3.
  • the base 10 3 is provided only at one end portion of the resin liner 1 1 1, the barrel portion 1 3 1, 1 4 for one of the pair of liner constituent members 1 2 1, 1 2 2 One end of 1 is a closed end Made.
  • the joining end portion 14 4 is formed in the same manner as the joining end portion 12 of the pipe material 1 of the first embodiment. That is, as shown in FIG. 6, the outer peripheral surface of the joining end portion 14 4 is aligned with the male screw 16 1 that is screwed into the female screw 15 2 and the joining surface 15 3 3 and is circumferentially aligned therewith. And a step surface 1 6 3 capable of receiving the front end surface 1 5 1.
  • male screws 1 61, joint surface 1 6 2, and step surface 1 6 3 are configured in the same manner as the male screws 2 1, joint surface 2 2, and step surface 2 3 of the first embodiment. Variations (eg, taper male threads) can be applied.
  • the joining end portion 1 3 4 is formed by a screwed structure including male screws 1 6 1 and female screws 1 5 2. , 1 4 4 are engaged.
  • a laser welded portion 180 that integrally joins the joining surfaces 15 3 and 16 2 is formed at the interface between the joining surfaces 15 3 and 16 2.
  • the joining portion 1 90 between the liner constituent members 1 2 1 and 1 2 2 has a laser welded portion 1 8 in the vicinity of the screwed structure comprising the male screw 1 6 1 and the female screw 1 5 2. 0 is formed.
  • the joining end portions 1 3 4 and 1 4 4 are joined so that their outer peripheral surfaces are flush with each other.
  • the entire liner component 1 2 1 is not laser-transmissible and the entire liner component 1 2 2 is not laser-absorbing resin. Or a laser absorption property.
  • the liner constituent members 1 2 1 and 1 2 2 referred to in the present specification are members constituting the resin liner 1 1 1 having a divided structure, and have a substantially cylindrical end portion as described above. Say things. Therefore, the liner constituent members 1 2 1 and 1 2 2 only need to have a substantially cylindrical shape at least on one end side, and the overall shape is cylindrical, annular, bowl-shaped, It is included that it is dome-like.
  • a pair of liner constituting members 1 2 1 and 1 2 2 and two caps 1 0 3 and 1 0 3 are formed.
  • one preformed base 103 is placed in the mold, a laser-transmitting thermoplastic resin is injected into the mold, and the liner constituent member 1 21 and the base 10 3 are attached. Integral molding (insert molding). Further, in the same procedure, a laser-absorbing thermoplastic resin is injected to integrally form the liner constituent member 1 2 2 and the base 1 0 3. 'In this way, the liner components 1 2 1 and 1 2 2 can be molded with high molding accuracy by using injection molding. In place of injection molding, rotational molding or blow molding may be used.
  • each liner constituent member 1 2 1, 1 2 2 with a base 103 is placed in the production facility in, for example, a horizontal orientation, and the liner constituent members 1 2 1, 1 2 2 are opposed to each other, Screw part of male screw 1 6 1 into part of female screw 1 5 2.
  • Liner components 1 2 1 and 1 2 2 are resin liners 1 1 1 in a state where they are temporarily joined together (provisionally joined).
  • the resin liner 1 1 1 in the temporarily joined state is connected by screwing a stopper (not shown) into each base 10 3, 1 0 3 of each liner component 1 2 1, 1 2 2. It is also possible to make the inside substantially sealed so that impurities do not enter this sealed space.
  • a laser welding process is performed. That is, while driving the laser torch 1 70 outside the resin liner 1 1 1 in the temporarily bonded state, the resin liner 1 1 1 is rotated around its axis by a rotating device (not shown) in synchronization with this. Rotate to The laser beam is irradiated from the laser-transmitting bonding end 1 3 4 side toward the laser-absorbing bonding end 1 4 4, and the resin on the bonding surface 1 6 2 and the resin on the bonding surface 1 5 3 are sequentially turned in the circumferential direction. It is heated and melted.
  • the rotating device can further improve the adhesion between the joint surfaces 15 3 and 16 2.
  • the resin liner 1 1 1 may be configured to rotate relative to the laser torch 1 1700 during the laser irradiation.
  • a laser emitted from the laser torch 170 can be a semiconductor laser or the like, but is not limited thereto.
  • a laser welded portion 180 that integrally joins the joining surfaces 15 3 and 16 2 to each other is formed in the circumferential direction.
  • the resin liner 1 1 1 changes from the temporarily joined state to the fully joined state (that is, the completely joined state).
  • the gas container 10 1 is manufactured by forming the reinforcing layer 1 1 2 on the outer surface of the resin liner 1 1 1 by the filament winding method or the like.
  • the joining surfaces 1 5 3 and 1 6 2 can be held in close contact with each other.
  • misalignment between the joining surfaces 15 3 and 16 2 can be suitably suppressed, and the joining surfaces 15 3 and 16 2 can be satisfactorily welded to each other without using a pressing jig or the like. Can be joined.
  • the resin liner 11 1 1 after laser welding is joined not only by the laser welded portion 180, but also by screw fastening with a screwed structure, the joining strength and resistance of the joint portion 190 are not reduced. It can improve the density.
  • the configuration of the second embodiment in which the male screw 16 1 and the female screw 15 2 are made of metal materials can be applied.
  • the metal sleeve 80 having the female thread 1 5 2 is connected to the liner constituent member 1 2 1. Insert molding may be used.
  • a metal sleeve 70 having male threads 1 6 1 may be insert-molded into the liner component 1 2 2. Good.
  • the gas container and its joining method according to the fourth embodiment will be described focusing on the differences.
  • the difference from the third embodiment is that the resin liner 1 1 1 of the gas container 10 1 is constituted by three liner constituent members 2 0 1, 2 0 2, 2 0 3.
  • the reinforcing layer 1 1 2 is omitted.
  • the resin liner 11 1 1 is formed by joining three liner constituent members 2 0 1, 2 0 2, 2 0 3 divided into three in the longitudinal direction by laser welding.
  • the two liner constituting members 20 1 and 2.0 2 located at both ends are formed in a bowl shape as a whole.
  • the liner constituting member 20 3 located at the center is formed in a cylindrical or annular shape as a whole.
  • the two liner constituent members 2 0 1 and 2 0 2 at both ends are integrally formed with the base 3 by, for example, injection molding.
  • the central liner constituent member 203 is formed by, for example, injection molding.
  • Each of the two liner components 2 0 1, 2 0 2 at both ends includes a return part 2 1 1, 2 2 1, a communication part 2 1 2, 2 2 2, and each base 1 0 3, 1 0
  • joint end portions 2 1 3, 2 2 3 On the opposite side to 3, there are joint end portions 2 1 3, 2 2 3.
  • Joining end 2 1 3 and joining end 2 2 3 is composed of a joint end portion (1 34) having a female thread 152 similar to the above, and has laser permeability.
  • the central liner constituting member 20'3 has joint end portions 231, 232 on both ends opened in the axial direction.
  • the joining end portion 231 and the joining end portion 232 are constituted by a joining end portion (144) having the same external thread 161 as described above, and have laser absorption characteristics.
  • the joining end portions 213 and 223 may be the male side of the screwing structure with the laser absorption
  • the joining end portions 231 and '232 may be the female side of the screwing construction with the laser transmission property.
  • the resin liner 111 is joined to the joining end portions 213 and 231 by laser welding in a screwed state, and the joining end portions 223 and 232 are joined to each other by laser welding in a screwed state.
  • the manufacturing method of each embodiment described above can be applied to the manufacturing method of the gas container 101 of the present embodiment.
  • the case where the three liner constituent members 201, 202, and 203 are simultaneously joined by laser welding will be briefly described.
  • three liner constituent members 201, 202, 203 including a liner constituent member (201, 202) with a base 103 are formed.
  • the joint end portion 213 and the joint end portion 231 are screwed together to bring these joint surfaces into contact with each other, and the joint end portion 223 and the joint end portion 232 are screwed together to bring these joint surfaces into contact with each other.
  • the resin liner 111 is in a state where all the liner constituent members 201, 202, 203 are temporarily joined (provisionally joined).
  • the joint ends 213, 231 are joined together and the joint ends 223, 232 are joined together.
  • the laser welded portion (180) is formed in the joining portion 190, the resin liner 111 is finally joined, and the gas container 101 is finally produced by providing the scavenging layer 112.
  • the gas container 10 1 of the third embodiment and the fourth embodiment has a threaded structure composed of male screws 1 6 1 and female screws 15 2 in the vicinity of the laser welded portion 180 itself.
  • an engagement structure other than the threaded structure may be used.
  • the joining end portions 1 3 4 and 1 4 4 of the third embodiment may be engaged so as to be brought into close contact by the engaging structure.
  • This type of engagement structure can be configured by, for example, snap fitting or press fitting.
  • the gas container and the joining method thereof according to the fifth embodiment will be described focusing on the differences.
  • the main difference from the third embodiment is that the joint ends 3 0 1 and 3 1 1 are engaged with each other by using an engagement structure other than the threaded structure.
  • the liner constituting member 1 2 1 has a cylindrical joining end portion 30 1 on the other end side of the body portion 1 3 1.
  • the joining end 3 0 1 has a joining surface 3 0 2 formed at the other end of the body 1 3 1, and an engagement recess 3 0 3 formed in the vicinity of the joining surface 3 0 2.
  • the joint surface 30 2 is inclined at a predetermined angle with respect to the axial direction of the resin liner 11 1, and is formed in a reverse taper shape.
  • the engaging recesses 30 3 are recessed in the inner peripheral surface of the liner constituting member 12 1.
  • the cross-sectional shape of the engaging recess 30 3 is a semicircular arc shape, but can be appropriately designed such as a trapezoid.
  • the engaging recess 30 3 is connected to the joint surface 30 2 through the contact surface 30 4.
  • Contact surface 3 0 4 is liner component 1 2 1 It is a part of the inner peripheral surface of and is formed in a cylindrical shape.
  • the liner constituting member 1 2 2 has a cylindrical joining end 3 1 1 on the other end side of the body 1 4 1.
  • the joining end portion 3 11 has a joining surface 3 1 2, a contact surface 3 1 3, and an engaging convex portion 3 1 4.
  • the joint surface 3 1 2 is a part of the outer peripheral surface of the liner constituting member 1 2 2, and is formed in a tapered shape corresponding to the joint surface 3 0 2.
  • the joining surface 3 1 2 is configured to be aligned with the joining surface 3 0 2 and to be able to abut on the joining surface 3 0 2 from the inside in the radial direction to the circumferential direction. It is preferable to smooth the surfaces so that the joint surfaces 3 0 2 and 3 1 2 are in contact with each other without any gap.
  • the angles of the joint surfaces 30 2 and 3 12 are arbitrary, but may be any angles that allow the laser beam from the laser torch 50 as a laser irradiation device to be transmitted or received.
  • the contact surface 3 1 3 is a part of the outer peripheral surface of the liner constituting member 1 2 2 and is formed in a cylindrical shape.
  • the contact surface 3 1 3 extends in the axial direction of the resin liner 1 1 as much as the contact surface 3 0 4.
  • the contact surface 3 13 is aligned with the contact surface 30 4 and is configured to be able to contact the contact surface 3 4 from the inside in the radial direction to the circumferential direction.
  • the engaging convex portion 3 1 4 is connected to the joint surface 3 1 2 through the contact surface 3 1 3.
  • the engaging convex portion 3 14 may not be formed at the tip of the liner constituting member 1 2 2 but may be formed so as to be directly connected to the joining surface 3 1 2.
  • the engaging protrusion 3 14 is formed so as to protrude from the outer peripheral surface of the tip of the liner component 1 2 2.
  • the surface of the engaging convex portion 3 14 is located radially inward from the outer peripheral surface of the body portion 14 1.
  • the engaging convex portion 3 14 is engaged in a click manner so as to be hooked on the engaging concave portion 30 3. That is, the engagement convex portion 3 14 and the engagement concave portion 30 3 constitute an engagement structure that engages the joint end portions 30 1 and 3 11.
  • the engagement structure including the engagement protrusions 3 1 4 and the engagement recesses 30 3
  • the joining end portions 3 0 1 and 3 1 1 are engaged with each other.
  • Laser welding portion for integrally joining the mating surfaces 3 0 2 and 3 1 2 to each other 1 8 0 force is formed at the interface between the joining surface 3 0 2 and the joining surface 3 1 2.
  • the laser welded portion 180 is virtually indicated by a two-dot chain line.
  • the outer peripheral surfaces of the joined end portions 3 0 1 and 3 1 1 are flush with each other.
  • the contact surfaces 3 0 4 and 3 1 3 are in contact with each other so as to be in close contact with each other.
  • the engaging convex portions 3 1 4 are engaged with the engaging concave portions 3 0 3.
  • the joint surfaces 3 0 2 and 3 1 2 and the contact surfaces 3 0 4 and 3 1 3 are brought into contact with each other in the circumferential direction, and the liner constituent members 1 2 1 and 1 2 2 are temporarily joined together.
  • a laser welding process is executed, and the joining surfaces 30 2 and 3 12 are joined together in the circumferential direction by laser welding, and a laser welding portion 180 is formed between them.
  • the region where the laser welding is performed may include between the contact surface 30 4 and the contact surface 3 1 3 and / or between the engagement concave portion 30 3 and the engagement convex portion 3 14. good.
  • the joint surfaces 3 0 2 and 3 1 2 can be held in close contact with each other.
  • the joint strength and tightness resistance of the joint portion 190 are not limited. Sex It can improve.
  • the joint surface 3 1 2, the contact surface 3 1 3 and the engagement projection 3 1 4 are connected to the joint surface 3 0 2, contact by the internal pressure of the container. Pressed against the surface 3 0 4 and the engaging recess 3 '0 3 respectively. Since the contact surfaces 3 1 3 and 3 0 4 are formed, the joint ends 3 0 1 and 3 1 1 can be brought into contact with each other with a relatively large pressure receiving area.
  • the shapes of the joint ends 3 0 1, 3 1 1 applicable in the fifth embodiment are not limited to a cylindrical shape, an annular shape, a bowl shape, and a dome shape, but may be a rectangular tube shape such as a triangle or a square. May be.
  • a temporarily bonded resin liner 1 1 1 is disposed in the chamber, and the chamber 1 is placed in an inert gas atmosphere or in a vacuum state.
  • the screwed joints 1 3 4 and 1 4 4 may be laser welded together.
  • the atmosphere can be under a lower oxygen atmosphere than the atmosphere, and oxidation of each of the joints 1 3 4 and 1 4 4 can be prevented, so that the joining accuracy can be further improved.
  • the application of the pressure difference can be performed, for example, by depressurizing or pressurizing the inside of the resin liner 1 1 1 via the base 1 0 3 of the resin liner 1 1 1 using a pump. By doing so, it is possible to join the joining surfaces 15 3 and 16 2 by laser welding in a state where the adhesion between the joining surfaces 15 3 and 16 2 is enhanced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne une structure et un procédé pour coller deux éléments consistant à coller les extrémités d'une paire d'éléments en résine de manière appropriée par soudage au laser tout en neutralisant facilement les décalages de position de ceux-ci, ainsi qu'un récipient à gaz et son procédé de fabrication. Un pas de vis extérieur exécuté à l'extrémité sensiblement tubulaire d'un des éléments en résine et un pas de vis intérieur exécuté à l'extrémité sensiblement tubulaire de l'autre élément en résine sont irradiés par laser en position vissée et ces extrémités sont collées par soudage au laser pour obtenir une structure de collage à partir des deux éléments. La structure de collage est appliquée sur une doublure en résine du récipient à gaz et les éléments constituant la doublure sont collés par soudage au laser en position vissée, de manière à obtenir le récipient à gaz.
PCT/JP2006/302682 2005-03-08 2006-02-09 Structure et procede pour coller deux elements, recipient a gaz et procede de fabrication dudit recipient a gaz WO2006095546A1 (fr)

Applications Claiming Priority (2)

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JP2005-064196 2005-03-08
JP2005064196A JP2006247892A (ja) 2005-03-08 2005-03-08 二部材の接合構造および接合方法、並びにガス容器およびその製造方法

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WO2006095546A1 true WO2006095546A1 (fr) 2006-09-14

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EP3418044A4 (fr) * 2016-02-18 2019-09-11 JPC Automotive Co., Ltd. Réservoir de carburant en polycétone et son procédé de fabrication
CN113251302A (zh) * 2020-02-10 2021-08-13 丰田自动车株式会社 高压罐的制造方法

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JP5083176B2 (ja) * 2008-11-05 2012-11-28 トヨタ自動車株式会社 ライナの製造方法及び分割ライナ
WO2011155016A1 (fr) * 2010-06-07 2011-12-15 浜松ホトニクス株式会社 Procédé de soudure de résine
AP2014007755A0 (en) * 2011-12-05 2014-07-31 Blue Wave Co Sa Single-layer composite pressure vessel
ES2909886T3 (es) * 2017-02-23 2022-05-10 Nproxx B V Tapa polar con elemento de conexión a presión para recipiente a presión
EP3603708A4 (fr) * 2017-03-31 2020-09-09 Terumo Kabushiki Kaisha Cylindre externe équipé d'une aiguille et son procédé de fabrication
JP7420105B2 (ja) * 2021-03-31 2024-01-23 豊田合成株式会社 筒状ライナ部材およびその製造方法ならびに圧力容器
KR102566953B1 (ko) * 2021-12-16 2023-08-14 주식회사 대흥정공 복합재료 압력용기용 라이너 어셈블리 제조방법 및 이 제조방법으로 제조된 복합재료 압력용기용 라이너 어셈블리

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JPH0547699U (ja) * 1991-12-04 1993-06-25 日東電工株式会社 プラスチック容器の接合構造
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EP2420718A4 (fr) * 2009-04-16 2012-09-12 Toyota Motor Co Ltd Réservoir d'essence et son procédé de fabrication
US8732929B2 (en) 2009-04-16 2014-05-27 Toyota Jidosha Kabushiki Kaisha Gas tank and manufacturing method of gas tank
EP3418044A4 (fr) * 2016-02-18 2019-09-11 JPC Automotive Co., Ltd. Réservoir de carburant en polycétone et son procédé de fabrication
CN113251302A (zh) * 2020-02-10 2021-08-13 丰田自动车株式会社 高压罐的制造方法

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