NO300959B1 - Fremgangsmåte til kontinuerlig å danne en forsegling mellom overlappende randpartier av en flerskiktsfolie for å danne et rörformet legeme - Google Patents

Fremgangsmåte til kontinuerlig å danne en forsegling mellom overlappende randpartier av en flerskiktsfolie for å danne et rörformet legeme Download PDF

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Publication number
NO300959B1
NO300959B1 NO882590A NO882590A NO300959B1 NO 300959 B1 NO300959 B1 NO 300959B1 NO 882590 A NO882590 A NO 882590A NO 882590 A NO882590 A NO 882590A NO 300959 B1 NO300959 B1 NO 300959B1
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Norway
Prior art keywords
layer
edge
edge part
layers
inner layer
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Application number
NO882590A
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English (en)
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NO882590D0 (no
NO882590L (no
Inventor
Henry Ueberegger
Original Assignee
Maegerle Karl Lizenz
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Application filed by Maegerle Karl Lizenz filed Critical Maegerle Karl Lizenz
Publication of NO882590D0 publication Critical patent/NO882590D0/no
Publication of NO882590L publication Critical patent/NO882590L/no
Publication of NO300959B1 publication Critical patent/NO300959B1/no

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/14Particular 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/116Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/432Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/49Internally supporting the, e.g. tubular, article during joining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7232General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7232General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328Paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7234General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00Shaping techniques involving a cutting or machining operation
    • B29C2793/0081Shaping techniques involving a cutting or machining operation before shaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36Bending and joining, e.g. for making hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022Mechanical pre-treatments, e.g. reshaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/733General 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
    • B29C66/7332General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/733General 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
    • B29C66/7336General 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 opaque, transparent or translucent to visible light
    • B29C66/73365General 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 opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
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    • B29L2023/22Tubes or pipes, i.e. rigid
    • YGENERAL 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
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    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007Running or continuous length work
    • Y10T156/1008Longitudinal bending
    • Y10T156/1013Longitudinal bending and edge-joining of one piece blank to form tube
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1036Bending of one piece blank and joining edges to form article
    • Y10T156/1038Hollow cylinder article
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1052Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062Prior to assembly
    • Y10T156/1066Cutting to shape joining edge surfaces only
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/19Sheets or webs edge spliced or joined
    • Y10T428/192Sheets or webs coplanar
    • Y10T428/195Beveled, stepped, or skived in thickness

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Tubes (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Wrappers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Saccharide Compounds (AREA)
  • Packages (AREA)
  • Toys (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Description

Oppfinnelsen angår en fremgangsmåte til kontinuerlig å danne en forsegling mellom et ytre randparti og et overlappende indre randparti av en flerskiktsfolie for å danne et rørformet legeme, idet begge randpartier har et indre skikt av sveisbar plast og et ytre skikt av sveisbar plast og en skåret kant i lengderetningen av det rørformede legeme, samtidig som kanten av det indre randparti er skåret skrått i lengderetningen slik at det indre skikt av dette randparti rager utenfor det eller de andre skikt, idet det ytre og det indre randparti samt det indre skikt av det indre randparti og det indre skikt av det ytre randparti sveises sammen ved innvirkning av varme og trykk for dannelse av en sveisesøm, hvor randpartiene presses mellom to verktøyer, hvorav minst ett har et spor som vender mot det indre randparti for å motta de overlappende randpartier, hvor det ytre skikt av det ytre randparti presses inn i det ytre skikt av det indre randparti, og det ytre skikt av de indre og ytre randpartier bringes til å strømme sammen for å danne et kontinuerlig skikt.
Skiktene av en, av flere skikt bestående folie har forskjellige oppgaver når folien f.eks. tjener som emballasjemateriale. Det skikt som vender mot det gods som skal pakkes, må være kjemisk nøytralt overfor dette gods. Minst ett mellomskikt tjener til oppnåelse av den ønskede styrke samt den ønskede elastisitet, spesielt ved anvendelse av folien i en emballasjebeholder. Det ytre skikt må kunne forsynes med trykk og skal oppvise en optisk og fysisk tiltrek-kende overflate. Videre kan det i forbindelse med diffunderende gods være nødvendig å utforme et av mellomskiktene som diffusjonshemmende barriere. Hvis f.eks. et av mellomskiktene består av metall, kreves der vanligvis et heftskikt på begge sider av metallet for oppnåelse av en sikker forbindelse med de øvrige skikt. Minst ett av de ytre skikt består av en sveisbar plast for å tillate den emballasje som skal fremstilles, å lukkes ved sveising.
Et for emballasjetuber beregnet tuberør oppviser vanligvis en langsgående søm hvor de innbyrdes overlappende randpartier av den laminerte folie er sammensveiset.
I denne forbindelse er vanligvis innersiden av det ene randparti sveiset sammen med yttersiden av det andre randparti. En slik søm danner riktignok en tett lukning, men oppviser den ulempe at det indre skikt som vender mot godset, er avbrutt langs sømmen som følge av foliens oppbygning av flere skikt. Derved far man risiko for at det emballerte gods i nærheten av sømmen kommer i berøring ikke bare med det kjemisk nøytrale skikt, men også med de øvrige skikt.
Fra EP-A3-0177470 er det kjent en fremgangsmåte for fremstilling av rør av en flerskiktfolie der denne ombøyes til rørform og de langsgående kanter forbindes. Patentet beskriver primært en fremgangsmåte der skjøtekantene forbindes butt i butt ved hjelp av overlappende foliestrimler som fastsveiser rørets ytterside henholdsvis innerside, men metoden kan også benyttes når det anvendes overlappskjøt.
Videre er det i DE-B-1486190 beskrevet en fremstillingsmetode for en tube hvor tubeemnet formes over en passende sylindrisk formdel og slik at emnekantene anbringes overlappende. Deretter blir de overlappende partier sveiset sammen ved hjelp av trykk og varme, samtidig som den indre, overlappende del formes radielt innover. Herved kan det imidlertid oppstå en uheldig blanding av materialet på foliematerialets inner- og ytterskikt.
Til grunn for oppfinnelsen ligger den oppgave å forbedre en fremgangsmåte av den innledningsvis angitte art på en slik måte, at en berøring av det emballerte gods med de øvrige skikt av folien forhindres.
Denne oppgave løses i henhold til oppfinnelsen ved hjelp av en fremgangsmåte av den innledningsvis nevnte art som er kjennetegnet ved at det indre skikt av det indre randparti oppvarmes kraftigere enn det andre skikt av dette randparti og det ytre randparti, for å bringe dette indre skikt til å flyte over og inn i sporet for å danne et intimt sammensveiset indre skikt med det indre skikt av det ytre randparti.
Som følge av fremgangsmåten ifølge oppfinnelsen vil det indre skikt av det innerstliggende randparti som vender mot det gods som skal emballeres, strekke seg utenfor de øvrige skikt av dette randparti, slik at det indre skikt dekker de øvrige skikt på snittstedet og kan forbindes med det indre skikt av det ytterstliggende randparti ved sveiseoperasjonen. På denne måte er det sikret at sømmen er fullstendig overdekket av det indre skikt på det sted som vender mot godset. Spesielt når der kreves en høy renhetsgrad, vil fremgangsmåten ifølge oppfinnelsen effektivt hindre at godset inngår uønskede eller endog utillatelige forbindelser med noen av mellomskiktene, slik at forbindelser som fremstilles i henhold til fremgangsmåten, også er egnet til emballering av gods som hittil har krevet en spesiell utforing av beholderen eller bruk av dobbeltveggede emballasjer.
Ved en foretrukket utførelsesform i henhold til oppfinnelsen skråskjæres kanten i en vinkel på ca 40 grader med tverretningen.
Et utførelseseksemp.el på oppfinnelsen vil nå bli nærmere beskrevet under henvisning til tegningen. Fig. 1 viser de innbyrdes overlappende kantpartier av en laminert folie, sett i tverrsnitt gjennom en søm som skal fremstilles, og før denne sveises.
Fig. 2 viser oppbyggingen av den laminerte folie.
Fig. 3 viser et snitt gjennom to bånd som tjener som verktøy ved fremstillingen av sømmen.
Fig. 4 viser et snitt gjennom den ferdige søm.
Fig. 1 viser to innbyrdes overlappende randpartier av en laminert folie, f.eks. for fremstilling av en søm i et tuberør for en emballasjetube. Begge randpartier av folien har en innerside 10 og en ytterside 12. Innersiden 10 vender mot det gods som skal emballeres. Ved den viste anordning ligger innersiden 10 av det ene randparti 14 mot yttersiden 12 av det andre randparti 16. Kanten 18 av det ytre randparti 14 er rett avskåret. Kanten 20 av det indre randparti 16 er slik skrått avskåret at det skikt 6 som ligger lengst fra de flater 10, 12 som skal presses mot hinannen, rager ut over de øvrige skikt av dette randparti. Snittkanten 20 danner fortrinnsvis en vinkel på 40° med tverretningen. Fig. 1 er tegnet i en målestokk på 50:1. Fig. 2 viser det ytre randparti 14 i en målestokk på 100:1 for å lette beskrivel-sen av de enkelte skikt. Det ytre skikt 1 består av en termoplast, f.eks. av polyeten, polypropen eller deres kopolymerer. Det annet skikt 2 består av papir som skal gi folien den ønskede stivhet. Det tredje skikt 3 er et heftskikt av plast for å skaffe en sikker forbindelse med det fjerde skikt 4, som består av aluminium. Aluminiumskiktet 4 tjener spesielt til oppnåelse av den ønskede elastisitet og eventuelt også som diffusjonsbarriere. På den andre side av aluminiumskiktet 4 er der anordnet et nytt heftskikt 5 av plast for å skaffe en sikker forbindelse mellom aluminiumskiktet 4 og det indre skikt 6. Det indre skikt 6 består igjen av en termoplast som på samme måte som det ytre skikt 1 er sveisbar. I sin beskaffenhet kan imidlertid det indre skikt 6 adskille seg fra det ytre skikt 1. Det indre skikt 6 kan f.eks. være gjennomsiktig, mens det ytre skikt 1 som er bestemt til å forsynes med trykk, fortrinnsvis kan være farget. Fig. 3 viser de innbyrdes overlappende skikt på fig. 1 mellom to som verktøy tjenende bånd 22 og 26. Det indre bånd 22 er et stålbånd med et langsgående spor 24 som de innbyrdes overlappende randpartier 14 og 16 presses inn i under sveiseoperasjonen ved hjelp av det motliggende bånd 26. Båndene 22 og 26 drives endeløst rundt ved hjelp av ikke viste organer, slik at forbindelsen mellom de to folierandpartier 14 og 16 finner sted endeløst og kontinuerlig.
Sveisevarmen blir frembragt induktivt ved hjelp av høyfrekvens i de to innbyrdes overlappende aluminiumskikt 4 (fig. 2). Som en ytterligere hjelp er det indre bånd 22 dessuten forvarmet. De direkte oppvarmede aluminiumskikt 4, i de to randpartier avgir varme til de tilgrensende plastskikt, spesielt til de to heftskikt 3 og 5, og videre til termoplastskiktet 6, som danner det indre skikt og skal sveises til det indre skikt av det motliggende randparti. Det oppvarmede aluminiumskikt 4 overfører forholdsvis lite varme til det ytre plastskikt 1, da det mellomliggende papirskikt 2 virker isolerende. Som følge av den kraftigere oppvarming av de indre skikt 6 av de to randpartier 14 og 16 dannes der en intim sveiseforbindelse, idet plastskiktet 6 på det indre randparti 16 flyter over som følge av den skrå snittkant 20. Denne skrå snittkant 20 bevirker videre at der foreligger en større materialmengde av plastskiktet 6. Som følge av sammenpressingstrykket mellom de to bånd 22 og 26 i sporet 24 fås der en praktisk talt sømløs overgang mellom plastskiktene 6 på de to randpartier 14 og 16.
På fig. 4 er den ferdige forbindelse vist i tverrsnitt. Det fremgår av figuren at termoplastskiktet 1 på det indre randparti 16 i området for den skrå snittkant 20 og i denne forbindelse også de to heftskikt 3 og 5 (fig. 2) er blitt presset ut til et fliklignende parti 28. Dette fliklignende parti 28 rager riktignok inn i det indre plastskikt 6, men utgjør ikke noe brudd i det sammensmeltede plastskikt 6 fra de to randpartier 14 og 16.
Det ytre plastskikt 1 på begge randpartier 14 og 16 er likeledes smeltet sammen til et gjennomgående skikt, nærmere bestemt ved hjelp av det trykk som utøves på skiktet 1 på det ytre randparti 14 av det ytre bånd 26, som likeledes fortrinnsvis er et stålbånd. Ved snittkanten 18 av det ytre randparti 14 er der blitt presset ut et flikformet parti 30 av heftskiktene 3 og 5 (fig. 2), som er trengt inn i skiktet 1, men uten å bryte dette.

Claims (2)

1. Fremgangsmåte til kontinuerlig å danne en forsegling mellom et ytre randparti (14) og et overlappende indre randparti (16) av en flerskiktsfolie for å danne et rørformet legeme, idet begge randpartier har et indre skikt (6) av sveisbar plast og et ytre skikt (12) av sveisbar plast og en skåret kant (18, 20) i lengderetningen av det rørformede legeme, samtidig som kanten (20) av det indre randparti (16) er skåret skrått i lengderetningen slik at det indre skikt (6) av dette randparti (16) rager utenfor det eller de andre skikt (1-5), idet det ytre og det indre randparti (14, 16) samt det indre skikt (6) av det indre randparti (16) og det indre skikt (6) av det ytre randparti (14) sveises sammen ved innvirkning av varme og trykk for dannelse av en sveisesøm, hvor randpartiene (14, 16) presses mellom to verktøyer (22, 26), hvorav minst ett har et spor (24) som vender mot det indre randparti (16) for å motta de overlappende randpartier, hvor det ytre skikt (12) av det ytre randparti (14) presses inn i det ytre skikt (12) av det indre randparti (16), og det ytre skikt (12) av de indre og ytre randpartier (14, 16) bringes til å strømme sammen for å danne et kontinuerlig skikt,karakterisert vedat det indre skikt (6) av det indre randparti (16) oppvarmes kraftigere enn de andre skikt (1-5) av dette randparti (16) og det ytre randparti (14) for å bringe dette indre skikt (6) til å flyte over og inn i sporet (24) for å danne et intimt sammensveiset indre skikt med det indre skikt (6) av det ytre randparti (14).
2. Fremgangsmåte som angitt i krav 1, karakterisert vedat kanten (20) skråskjæres i en vinkel på ca. 40° med tverretningen.
NO882590A 1986-10-15 1988-06-13 Fremgangsmåte til kontinuerlig å danne en forsegling mellom overlappende randpartier av en flerskiktsfolie for å danne et rörformet legeme NO300959B1 (no)

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CH4118/86A CH670988A5 (no) 1986-10-15 1986-10-15
PCT/CH1987/000137 WO1988002691A2 (fr) 1986-10-15 1987-10-07 Procede pour assembler des bords a recouvrement d'une feuille multicouche, et tube fabrique selon ce procede

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NO882590L NO882590L (no) 1988-06-13
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DK323288A (da) 1988-08-12
NZ222154A (en) 1989-07-27
IN170328B (no) 1992-03-14
DK323288D0 (da) 1988-06-14
DK170524B1 (da) 1995-10-16
DD266320A5 (de) 1989-03-29
JPH0574454B2 (no) 1993-10-18
NO882590D0 (no) 1988-06-13
ZA877670B (en) 1988-04-19
JPS6398421A (ja) 1988-04-28
DE3778633D1 (de) 1992-06-04
AU588713B2 (en) 1989-09-21
ATE75444T1 (de) 1992-05-15
EP0264012B1 (de) 1992-04-29
IE872739L (en) 1988-04-15
WO1988002691A3 (fr) 1988-07-28
FI874529A0 (fi) 1987-10-14
ES2032795T3 (es) 1993-03-01
US4834822A (en) 1989-05-30
MX172174B (es) 1993-12-07
EP0264012A3 (en) 1988-09-14
FI874529A (fi) 1988-04-16
NO882590L (no) 1988-06-13
WO1988002691A2 (fr) 1988-04-21
AU8028487A (en) 1988-05-06
KR890700077A (ko) 1989-03-02
KR940009908B1 (ko) 1994-10-18
CH670988A5 (no) 1989-07-31
EP0264012A2 (de) 1988-04-20
CN87106865A (zh) 1988-05-04
CA1312541C (en) 1993-01-12

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