EP3393779A1 - Semi-finished product for producing hollow profiled sections, hollow profiled sections made therefrom, and method for producing same - Google Patents

Semi-finished product for producing hollow profiled sections, hollow profiled sections made therefrom, and method for producing same

Info

Publication number
EP3393779A1
EP3393779A1 EP16812933.6A EP16812933A EP3393779A1 EP 3393779 A1 EP3393779 A1 EP 3393779A1 EP 16812933 A EP16812933 A EP 16812933A EP 3393779 A1 EP3393779 A1 EP 3393779A1
Authority
EP
European Patent Office
Prior art keywords
connection region
metal substrate
coupling layer
hollow profile
semifinished product
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP16812933.6A
Other languages
German (de)
French (fr)
Inventor
Andreas Cott
Manuel Grundmann
Dieter Kalemba
Torsten Krahnert
Stefan Mayer
Lothar Patberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
Original Assignee
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
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 ThyssenKrupp Steel Europe AG, ThyssenKrupp AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP3393779A1 publication Critical patent/EP3393779A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining 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
    • B29C66/4322—Joining 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • 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
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
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    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
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    • 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
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
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    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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    • B29K2705/12—Iron
    • 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
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • 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
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • the invention relates to semi-finished products for the production of hollow profiles, as e.g. in lightweight construction, building and plant engineering, as well as in pipeline construction. Furthermore, the application comprises hollow profiles produced from this semi-finished product and the method for producing such hollow profiles.
  • hollow profiles are known with multilayer structure, which usually takes place by possibly multiple one or two-sided coating of hollow profiles after their production.
  • Coating cost of 3D molded profiles is very high and can be applied only with effort sufficient pressure to allow adhesion.
  • Object of the present invention is to provide an alternative to the known in the prior art profiles, in particular the properties of the
  • a semifinished product for producing a hollow profile which has a metal substrate which has a width which is greater than the circumference of the hollow profile to be produced, and comprises a first connection region and a second connection region, which in the production of the hollow profile
  • first and second, connecting region is coated with a thermoplastic coupling layer.
  • the provision of the coupling layer on the flat metal substrate can be, for example, by
  • thermoplastic coupling layer preferably extends over the entire surface over the width of the metal substrate.
  • band coating operations can be applied to full-surface layers easily.
  • a full-surface coupling layer offers the advantage of an additional layer on the finished hollow profile, which optionally provides protection of the metal substrate against the environment in terms of corrosion or insulation, and the elimination of the requirement for accurate positioning of the coupling layer on the metal substrate.
  • the semifinished product is characterized in that, apart from the first and / or second connecting region, a further metal substrate, in particular with a width corresponding to the circumference of the hollow profile or the metal substrate minus the two connecting regions, is arranged on the coupling layer.
  • a further metal substrate is applied to the full-surface coupling layer. Due to the additional metal substrate, a multilayer wall structure is produced in the shaped hollow profile.
  • the metal substrate and / or further metal substrate consists of a sandwich material comprising at least two cover plates and an intermediate plastic layer, in particular a fiber-reinforced plastic layer.
  • connection region and the second connection region of the semifinished product are arranged in the widthwise direction in opposite edge regions and on different sides of the metal substrate or on the same side of the metal substrate.
  • the semi-finished hollow profiles with different arranged connecting areas produced.
  • connection areas arise over the circumference extending overlapping connection areas. If the connection areas lie on the same side, a flange protruding from the circumference can be formed by the connection areas.
  • the coupling layer is as
  • the mechanical properties of the semifinished product and the resulting hollow profile are improved.
  • the reinforcement may be targeted in the direction of loading, e.g. in the longitudinal or circumferential direction or by a relation to the longitudinal direction by preferably 45 ° twisted alignment also with respect to torsion done.
  • Hollow profiles according to the invention have a closed cross-section, which is formed by the deformation of a semifinished product according to the invention and joining the
  • first connection region and the second connection region are connected by a thermoplastic coupling layer.
  • a first connection region and a second connection region are provided overlapping at least over part of the circumference.
  • a first connection region and a second connection region are provided overlapping at an angle protruding from the periphery of the flange.
  • This flange can be provided projecting both inside or outside on the hollow profile at an arbitrary angle from the peripheral surface. Manufacturing technology, an outboard flange is preferably preferred with an angle of about 90 ° relative to the peripheral surface.
  • the production of the closed hollow profile comprises the following steps,
  • thermoplastic coupling layer Heating the thermoplastic coupling layer
  • the deformation can be carried out in continuous processes such as roll profiling in strip-shaped metal substrates, which is particularly advantageous for very long or endless hollow profiles.
  • stepped pressing operations are suitable.
  • mechanical mandrels or a pressurized medium can be used for shaping.
  • thermoplastic coupling layer for connecting the first and the second connection region may take place for the entire component, for example in an oven, or else preferably only locally at the connection regions by heat radiation or heat conduction, e.g. by infrared radiators, heating elements such as plates or rollers, or induction coils that heat the metal substrate.
  • the heating is expediently carried out after the forming of the semifinished product to the hollow profile or at the time at which the first and second connection region are brought into overlap. Alternatively, the heating at least partially already before or during the forming of the semifinished product.
  • An upstream heating has, for example, with regard to the formability of a multilayer composite of metal substrate, coupling layer and further metal substrate, in particular in the case of sandwich material as a further metal substrate, advantages.
  • Embodiments of the hollow profiles are shown as simple square profiles, wherein, of course, any closed cross-sectional shape for inventive
  • FIG. 1 a shows a semifinished product 1 according to the invention, which has a metal substrate 2, and a first connection region 3 and a second connection region 4, which are arranged on different sides of the metal substrate 2, and at the second connection region 4 a coupling layer 5 made of a thermoplastic material, such as For example, polyamide, in particular PA6, PE, PP, PET, PC and / or mixtures thereof is applied.
  • the metal substrate 2 preferably consists of a steel strip, which is present as an endless belt or in panels.
  • FIG. 1 b shows a hollow profile 7 in which the metal substrate 2 has been shaped from a semifinished product 1 shown in FIG. 1 a such that the first connection region 3 and the second connection region 4 are arranged opposite one another.
  • the hollow section 7 is not closed in this illustration.
  • a next step is the
  • FIG. 2 a shows a further semifinished product 1 according to the invention, the first connecting region 3 having the coupling layer 5 and the coupling layer 5 extending over the entire surface over the width of the metal substrate 2.
  • Connecting region 4, 4 ' may, as in Fig. La, on the other side of the Metal substrate 2 are - see.
  • FIG. 2 b shows a hollow profile 7 made of a semifinished product 1 according to FIG. 2 a, wherein the first connection region 3 and the second connection region 4 lie on different sides of the metal substrate 2. The transformation was carried out analogously to FIG. Ib.
  • FIG. 2 c shows a further embodiment of a hollow profile 7 made of a semifinished product 1 according to FIG. 2 a, wherein the first connecting region 3 and the second
  • Connecting region 4 ' lie on the same side of the metal substrate 2.
  • Forming in this case was such that the first connection region 3 and the second connection region 4 'to an outward at an angle 10 from the periphery
  • Fig. 3a shows an analogous embodiment to Fig. La, wherein the coupling layer 5, 5 'is provided locally on the first and the second connection region 3, 4.
  • Fig. 3b shows an analogous embodiment to Fig. Lb, wherein the
  • Coupling layers 5, 5 ', the first and second connecting portion 3, 4 connected to each other over a portion of the circumference 8, in particular glued or welded, are.
  • the coupling layer 5 extends from the first connection region 3 across the width of the metal substrate 2 to the second connection region 4, the second connection region 4 having no coupling layer 5.
  • a further metal substrate 6 is provided on the coupling layer 5, apart from the first and second connecting region 3, 4.
  • the Further metal substrate 6 thus has a width approximately corresponding to the circumference of the finished hollow profile minus the connecting region extending over part of the circumference 8. Other widths as well as the use of
  • Sandwich material for the further metal substrate 6 are also possible.
  • Sandwich material is in particular a multilayer composite with metallic
  • Fig. 4b shows a hollow section 7 of a semifinished product 1 according to the embodiment shown in Fig. 4a.
  • a semifinished product 1 is shown, which is provided on both sides of the entire surface with a coupling layer 5, 5 '.
  • the hollow profiles 7 produced therefrom there are always a first and a second connecting region 3, 4, 4 'with a coupling layer 5, 5', which is why always
  • FIG. 6 is a simplified schematic representation of the essential
  • step A the semi-finished product is formed to produce the shape of the hollow profile.
  • step B at least in the region of the first and / or second connection region, the coupling layer is heated in order to soften it and / or to activate it and to prepare it for step C.
  • step C the first and second connection regions are pressed together in order to connect the coupling layer to the metal substrate or to bond or weld to a further coupling layer or further section of the same coupling layer.
  • step D preferably with at least temporary maintenance of at least part of the pressing pressure from step C in order to solidify the connection. This is a closed hollow profile.
  • FIG. 7 illustrates a process flow with the same steps A to D as explained with reference to FIG. 6. With the difference that the step B of the heating takes place before step A of the forming, whereby preferably the complete semi-finished product is heated.
  • Room temperature relatively brittle plastic or semi-finished with another metal substrate, in particular from a sandwich material with fiber reinforcement, heating before forming has an advantageous effect on the process, as the
  • heating of the first and second connection regions can take place once the heated component has been formed again.

Abstract

The invention relates to a semi-finished product (1) for producing a hollow profiled section (7). The semi-finished product (1) has a width which is greater than the periphery of the hollow profiled section (7). The semi-finished product has a metal substrate (2) which comprises a first connection region (3) and a second connection region (4, 4') that are brought into contact with each other during the production of a hollow profiled section (7). The invention is characterized in that the first and/or second connection region (3, 4, 4') is coated with a thermoplastic coupling layer (5, 5'). The invention also relates to a hollow profiled section made of said semi-finished product and to a method for producing such a hollow profiled section.

Description

Halbzeug für die Herstellung von Hohlprofilen, Hohlprofile hieraus sowie  Semi-finished products for the production of hollow profiles, hollow profiles thereof as well
Verfahren zu deren Herstellung  Process for their preparation
Die Erfindung betrifft Halbzeuge für die Herstellung von Hohlprofilen, wie sie z.B. im Leichtbau, der Gebäude- bzw. Anlagentechnik sowie im Leitungsbau Anwendung finden. Des Weiteren umfasst die Anmeldung aus diesem Halbzeug erstellte Hohlprofile sowie das Verfahren zum Herstellen derartige Hohlprofile. The invention relates to semi-finished products for the production of hollow profiles, as e.g. in lightweight construction, building and plant engineering, as well as in pipeline construction. Furthermore, the application comprises hollow profiles produced from this semi-finished product and the method for producing such hollow profiles.
Im Stand der Technik sind diverse Hohlprofile bekannt, die aus einem Material gefertigt sind. Diese werden entweder durch Extrusions- oder Gießverfahren direkt als Various hollow profiles are known in the prior art, which are made of a material. These are either by extrusion or casting directly as
Hohlprofile mit definiertem Querschnitt erzeugt oder durch Verschweißen der stumpf aufeinander stoßenden Enden des aus einem Blech hergestellten Schlitzprofils mit einer konstanten Wandstärke gebildet. Hollow profiles produced with a defined cross-section or formed by welding the butt end of the abutting ends of the slot profile made of a sheet metal with a constant wall thickness.
Des Weiteren sind Hohlprofile mit mehrschichtigem Aufbau bekannt, wobei diese meist durch ggf. mehrfaches ein- oder beidseitiges Beschichten von Hohlprofilen nach deren Herstellung erfolgt. Furthermore, hollow profiles are known with multilayer structure, which usually takes place by possibly multiple one or two-sided coating of hollow profiles after their production.
Nachteilig an diesen aus dem Stand der Technik bekannten Profilen ist, dass der A disadvantage of these known from the prior art profiles is that of
Beschichtungsaufwand an 3D geformten Profilen sehr hoch ist und nur mit Aufwand ausreichender Druck aufgebracht werden kann um eine Haftung zu ermöglichen. Coating cost of 3D molded profiles is very high and can be applied only with effort sufficient pressure to allow adhesion.
Aufgabe der vorliegenden Erfindung ist es, eine Alternative zu den im Stand der Technik bekannten Profilen bereitzustellen, wobei insbesondere die Eigenschaften des Object of the present invention is to provide an alternative to the known in the prior art profiles, in particular the properties of the
Hohlprofils flexibler und einfacher einstellbar sind und ein verbessertes Hollow profiles are more flexible and easier to adjust and an improved
Leichtbaupotential gegeben ist. Lightweight potential is given.
Gelöst wird die Aufgabe durch ein Halbzeug zur Herstellung eines Hohlprofils, welches ein Metallsubstrat aufweist, welches eine Breite aufweist, die größer als der Umfang des herzustellenden Hohlprofils ist, und einen ersten Verbindungsbereich und einen zweiten Verbindungsbereich umfasst, die bei der Herstellung des Hohlprofils The object is achieved by a semifinished product for producing a hollow profile, which has a metal substrate which has a width which is greater than the circumference of the hollow profile to be produced, and comprises a first connection region and a second connection region, which in the production of the hollow profile
miteinander in Kontakt gebracht werden, dadurch gekennzeichnet, dass der erste oder zweite oder beide, also erster und zweiter, Verbindungsbereich mit einer thermoplastischen Koppelschicht beschichtet ist. Die Bereitstellung der Koppelschicht auf dem flachen Metallsubstrat lässt sich beispielsweise durch be brought into contact with each other, characterized in that the first or second or both, so first and second, connecting region is coated with a thermoplastic coupling layer. The provision of the coupling layer on the flat metal substrate can be, for example, by
Bandbeschichtungsvorgänge oder andere Methoden zur Kunststoffapplizierung leicht und kostengünstig erzielen. Unter Metallsubstrat sind neben band- auch blechförmige Ausführungen zu verstehen.  Band coating operations or other methods for plastic application easily and inexpensively. Under metal substrate are in addition to band and sheet-shaped versions to understand.
Beim Halbzeug erstreckt sich die thermoplastische Koppelschicht bevorzugt vollflächig über die Breite des Metallsubstrats. Insbesondere mit Bandbeschichtungsvorgängen lassen sich vollflächige Schichten leicht aufbringen. Des Weiteren bietet eine vollflächige Koppelschicht den Vorteil einer zusätzlichen Schicht am fertigen Hohlprofil, die ggf. einen Schutz des Metallsubstrats gegen die Umgebung hinsichtlich Korrosion oder Isolierung bietet, sowie dem Entfallen der Anforderung an eine genaue Positionierung der Koppelschicht auf dem Metallsubstrat. In the semifinished product, the thermoplastic coupling layer preferably extends over the entire surface over the width of the metal substrate. In particular, with band coating operations can be applied to full-surface layers easily. Furthermore, a full-surface coupling layer offers the advantage of an additional layer on the finished hollow profile, which optionally provides protection of the metal substrate against the environment in terms of corrosion or insulation, and the elimination of the requirement for accurate positioning of the coupling layer on the metal substrate.
In weiteren Ausführungen ist das Halbzeug dadurch gekennzeichnet, dass auf der Koppelschicht abgesehen von dem ersten und/oder zweiten Verbindungsbereich ein weiteres Metallsubstrat, insbesondere mit einer dem Umfang des herzustellenden Hohlprofils oder dem Metallsubstrat abzüglich der beiden Verbindungsbereiche entsprechenden Breite, angeordnet ist. Das heißt, dass neben den freibleibenden Verbindungsbereich oder Verbindungsbereichen ein weiteres Metallsubstrat auf der vollflächigen Koppelschicht aufgebracht ist. Durch das weitere Metallsubstrat wird beim geformten Hohlprofil ein mehrschichtiger Wandaufbau erzeugt. In further embodiments, the semifinished product is characterized in that, apart from the first and / or second connecting region, a further metal substrate, in particular with a width corresponding to the circumference of the hollow profile or the metal substrate minus the two connecting regions, is arranged on the coupling layer. This means that, in addition to the remaining free connection region or connection regions, a further metal substrate is applied to the full-surface coupling layer. Due to the additional metal substrate, a multilayer wall structure is produced in the shaped hollow profile.
In alternativen Ausführungen des Halbzeugs besteht das Metallsubstrat und/oder weitere Metallsubstrat aus einem Sandwichmaterial aus mindestens zwei Deckblechen und einer dazwischenliegenden Kunststoffschicht, insbesondere faserverstärkten Kunststoffschicht. Hierdurch werden insbesondere die mechanischen Eigenschaften des späteren Hohlprofils verbessert. In alternative embodiments of the semifinished product, the metal substrate and / or further metal substrate consists of a sandwich material comprising at least two cover plates and an intermediate plastic layer, in particular a fiber-reinforced plastic layer. As a result, in particular the mechanical properties of the later hollow profile are improved.
Der erste Verbindungsbereich und der zweite Verbindungsbereich des Halbzeugs sind in Breitenrichtung in entgegensetzten Randbereichen und auf unterschiedlichen Seiten des Metallsubstrats oder auf der gleichen Seiten des Metallsubstrats liegend angeordnet. Abhängig von der Anordnung werden aus dem Halbzeug Hohlprofile mit unterschiedlich angeordneten Verbindungsbereichen herstellbar. Bei auf unterschiedlichen Seiten des Metallsubstrats liegenden Verbindungsbereichen entstehen sich über dem Umfang verlaufend überlappende Verbindungsbereiche. Liegen die Verbindungsbereiche auf der gleichen Seite, kann durch die Verbindungsbereiche ein vom Umfang abstehender Flansch gebildet werden. The first connection region and the second connection region of the semifinished product are arranged in the widthwise direction in opposite edge regions and on different sides of the metal substrate or on the same side of the metal substrate. Depending on the arrangement, the semi-finished hollow profiles with different arranged connecting areas produced. When lying on different sides of the metal substrate connection areas arise over the circumference extending overlapping connection areas. If the connection areas lie on the same side, a flange protruding from the circumference can be formed by the connection areas.
In weiteren Ausführungsformen weist das Metallsubstrat des Halbzeugs in In further embodiments, the metal substrate of the semifinished product in
Längsrichtung unterschiedliche Breiten auf. Hierdurch können Hohlprofile mit in Längsrichtung variierenden Querschnitten erzeugt werden. Bevorzugt ist ein Lengthwise different widths. As a result, hollow profiles can be produced with varying cross-sections in the longitudinal direction. Preferred is a
kontinuierlicher Übergang zwischen den unterschiedlichen Breiten vorgesehen. continuous transition between the different widths provided.
Bei bevorzugten Ausführungsformen des Halbzeugs ist die Koppelschicht als In preferred embodiments of the semifinished product, the coupling layer is as
faserverstärkte Koppelschicht ausgebildet. Durch die Faserverstärkung in der fiber reinforced coupling layer formed. Due to the fiber reinforcement in the
Koppelschicht oder evtl. vorhandenen Kunststoffschichten werden die mechanischen Eigenschaften des Halbzeugs sowie des daraus gefertigten Hohlprofils verbessert. Bei der Verwendung von gerichteten Fasern, wie bei Geweben, Gewirken oder Rovings, kann im Gegensatz zu ungerichteten Fasern, wie Vliesen oder losen Kurzfasern, die Verstärkung gezielt in Belastungsrichtung, z.B. in Längs- oder Umfangsrichtung oder durch eine gegenüber der Längsrichtung um vorzugsweise 45° verdrehte Ausrichtung auch hinsichtlich Torsion, erfolgen. Coupling layer or possibly existing plastic layers, the mechanical properties of the semifinished product and the resulting hollow profile are improved. When using directional fibers such as fabrics, knits or rovings, unlike undirected fibers such as nonwovens or loose short fibers, the reinforcement may be targeted in the direction of loading, e.g. in the longitudinal or circumferential direction or by a relation to the longitudinal direction by preferably 45 ° twisted alignment also with respect to torsion done.
Erfindungsgemäße Hohlprofile weisen einen geschlossenen Querschnitt auf, der durch die Umformung eines erfindungsgemäßen Halbzeugs und Fügen der Hollow profiles according to the invention have a closed cross-section, which is formed by the deformation of a semifinished product according to the invention and joining the
Verbindungsbereiche dieses Halbzeugs erzeugt ist, wobei der erste Verbindungsbereich und der zweite Verbindungsbereich durch eine thermoplastische Koppelschicht verbunden sind. In einer ersten Ausführungsform sind ein erster Verbindungsbereich und ein zweiter Verbindungsbereich sich zumindest über einen Teil des Umfangs überlappend vorgesehen. In weiteren Ausführungen ist ein erster Verbindungsbereich und ein zweiter Verbindungsbereich sich in einem Winkel vom Umfang abstehenden Flansch überlappend vorgesehen. Dieser Flansch kann sowohl innen oder auch außen am Hohlprofil in einem beliebigen Winkel von der Umfangsfläche abstehend vorgesehen sein. Fertigungstechnisch wird ein außenliegender Flansch vorzugsweise mit einem Winkel von ca. 90° gegenüber der Umfangsfläche bevorzugt. Durch die Verwendung von Halbzeugen mit unterschiedlichen Breiten in Längsrichtung werden erfindungsgemäße Hohlprofil mit in Längsrichtung unterschiedlichen Connecting regions of this semi-finished product is generated, wherein the first connection region and the second connection region are connected by a thermoplastic coupling layer. In a first embodiment, a first connection region and a second connection region are provided overlapping at least over part of the circumference. In further embodiments, a first connection region and a second connection region are provided overlapping at an angle protruding from the periphery of the flange. This flange can be provided projecting both inside or outside on the hollow profile at an arbitrary angle from the peripheral surface. Manufacturing technology, an outboard flange is preferably preferred with an angle of about 90 ° relative to the peripheral surface. By using semi-finished products with different widths in the longitudinal direction hollow profile according to the invention with different in the longitudinal direction
Querschnitten erzeugt. Generated cross sections.
Bei einem erfindungsgemäßen Verfahren zur Herstellung eines erfindungsgemäßen Hohlprofils aus einem erfindungsgemäßen Halbzeug umfasst die Herstellung des geschlossenen Hohlprofils folgende Schritte, In a method according to the invention for producing a hollow profile according to the invention from a semifinished product according to the invention, the production of the closed hollow profile comprises the following steps,
- Umformen des Metallsubstrats (2) derart, dass der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') überlappen,  - Forming the metal substrate (2) such that the first connection region (3) and the second connection region (4, 4 ') overlap,
- Erwärmen der thermoplastischen Koppelschicht,  Heating the thermoplastic coupling layer,
- Aufeinanderpressen des ersten und zweiten Verbindungsbereichs,  Pressing the first and second connecting areas together,
- Abkühlen der Koppelschicht.  - cooling the coupling layer.
Die Umformung kann bei bandförmigen Metallsubstraten in kontinuierlichen Prozessen, wie Rollprofilieren erfolgen, was insbesondere für sehr lange bzw. endlose Hohlprofile vorteilhaft ist. Für kleinere oder komplex geformte Bauteile eigenen sich gestufte Pressvorgänge. Gegebenenfalls kann zur Formgebung mechanische Dorne oder ein mit Druck beaufschlagtes Medium verwendet werden. The deformation can be carried out in continuous processes such as roll profiling in strip-shaped metal substrates, which is particularly advantageous for very long or endless hollow profiles. For smaller or complex shaped components, stepped pressing operations are suitable. Optionally, mechanical mandrels or a pressurized medium can be used for shaping.
Die Erwärmung der thermoplastischen Koppelschicht zur Verbindung des ersten mit dem zweiten Verbindungsbereich kann für das ganze Bauteil beispielsweise in einem Ofen erfolgen, oder auch bevorzugt nur lokal an den Verbindungsbereichen durch Wärmestrahlung oder Wärmeleitung z.B. durch Infrarotstrahler, Heizelemente, wie Platten oder Rollen, oder Induktionsspulen, die das Metallsubstrat erwärmen. The heating of the thermoplastic coupling layer for connecting the first and the second connection region may take place for the entire component, for example in an oven, or else preferably only locally at the connection regions by heat radiation or heat conduction, e.g. by infrared radiators, heating elements such as plates or rollers, or induction coils that heat the metal substrate.
Die Erwärmung erfolgt zweckmäßig nach dem Umformen des Halbzeugs zum Hohlprofil bzw. zum Zeitpunkt an dem der erste und zweite Verbindungsbereich in Überlappung gebracht werden. Alternativ kann die Erwärmung zumindest teilweise auch bereits vor oder während dem Umformen des Halbzeugs erfolgen. Eine vorgeschaltete Erwärmung weist beispielsweise hinsichtlich der Umformbarkeit eines mehrschichtigen Verbunds aus Metallsubstrat, Koppelschicht und weiteren Metallsubstrat, insbesondere im Falle von Sandwichmaterial als weiteres Metallsubstrat, Vorteile auf. The heating is expediently carried out after the forming of the semifinished product to the hollow profile or at the time at which the first and second connection region are brought into overlap. Alternatively, the heating at least partially already before or during the forming of the semifinished product. An upstream heating has, for example, with regard to the formability of a multilayer composite of metal substrate, coupling layer and further metal substrate, in particular in the case of sandwich material as a further metal substrate, advantages.
Die obigen Ausführungsformen können beliebig miteinander kombiniert werden. Bei den Figuren sind gleiche oder entsprechende Teile mit gleichen Bezugszeichen versehen. Die Darstellungen sind schematisch und insbesondere die gezeigten The above embodiments may be arbitrarily combined with each other. In the figures, the same or corresponding parts are provided with the same reference numerals. The illustrations are schematic and in particular those shown
Ausführungsformen der Hohlprofile sind als einfache Vierkantprofile gezeigt, wobei selbstverständig jegliche geschlossene Querschnittsform für erfindungsgemäße Embodiments of the hollow profiles are shown as simple square profiles, wherein, of course, any closed cross-sectional shape for inventive
Hohlprofile möglich ist. Die Figuren zeigen: Hollow profiles is possible. The figures show:
Fig. la, 2a, 3a, 4a, 5 verschiedene Ausführungsbeispiele eines Fig. La, 2a, 3a, 4a, 5 different embodiments of a
erfindungsgemäßen Halbzeugs  Inventive semi-finished product
Fig. lb, 2b, 2c, 3b, 4b verschiedene Ausführungsformen eines erfindungsgemäßen Fig. Lb, 2b, 2c, 3b, 4b different embodiments of an inventive
Hohlprofils  hollow profile
Fig. 6, 7 Schematische Ablaufdiagramme für Verfahren zur  6, 7 are schematic flowcharts for methods for
Herstellung eines erfindungsgemäßen Hohlprofils  Production of a hollow profile according to the invention
Fig. la zeigt ein erfindungsgemäßes Halbzeug 1, welches ein Metallsubstrat 2 aufweist, sowie einen ersten Verbindungsbereich 3 und einen zweiten Verbindungbereich 4, die auf unterschiedlichen Seiten des Metallsubstrats 2 angeordnet sind, und am zweiten Verbindungsbereich 4 eine Koppelschicht 5 aus einem thermoplastischen Kunststoff , wie beispielsweise Polyamid, insbesondere PA6, PE, PP, PET, PC und/oder deren Mischungen aufgebracht ist. Das Metallsubstrat 2 besteht vorzugsweise aus einem Stahlband, welches als Endlosband oder in Tafeln vorliegt. 1 a shows a semifinished product 1 according to the invention, which has a metal substrate 2, and a first connection region 3 and a second connection region 4, which are arranged on different sides of the metal substrate 2, and at the second connection region 4 a coupling layer 5 made of a thermoplastic material, such as For example, polyamide, in particular PA6, PE, PP, PET, PC and / or mixtures thereof is applied. The metal substrate 2 preferably consists of a steel strip, which is present as an endless belt or in panels.
Fig. lb zeigt ein Hohlprofil 7 bei dem aus einem in Fig. la dargestellten Halbzeug 1, das Metallsubstrat 2 derart umgeformt wurde, dass der erste Verbindungsbereich 3 und der zweite Verbindungsbereich 4 gegenüberliegend angeordnet sind. Das Hohlprofil 7 ist in dieser Darstellung noch nicht geschlossen. In einem nächsten Schritt ist die 1 b shows a hollow profile 7 in which the metal substrate 2 has been shaped from a semifinished product 1 shown in FIG. 1 a such that the first connection region 3 and the second connection region 4 are arranged opposite one another. The hollow section 7 is not closed in this illustration. In a next step is the
Koppelschicht 5 zu erwärmen, z.B. für PA6 auf ca. 220°-250C, und die beiden To heat coupling layer 5, e.g. for PA6 at about 220 ° -250C, and the two
Verbindungsbereiche 3, 4 beispielsweise mit 0,2 - 5 MPa Druckkraft aufeinander zu pressen. Press connection areas 3, 4, for example, with 0.2 - 5 MPa pressure force on each other.
In Fig. 2a ist ein weiteres erfindungsgemäßes Halbzeug 1 dargestellt, wobei der erste Verbindungsbereich 3 die Koppelschicht 5 aufweist und die Koppelschicht 5 sich vollflächig über die Breite des Metallsubstrats 2 erstreckt. Der zweite FIG. 2 a shows a further semifinished product 1 according to the invention, the first connecting region 3 having the coupling layer 5 and the coupling layer 5 extending over the entire surface over the width of the metal substrate 2. The second
Verbindungsbereich 4, 4' kann sich, wie in Fig. la, auf der anderen Seite des Metallsubstrats 2 befinden - vgl. Bezugszeichen 4 - oder auf der gleichen Seite des Metallsubstrats 2 liegen - vgl. Bezugszeichen 4'. Wenn der zweite Verbindungsbereich 4' auf der gleichen Seite wie der erste Verbindungsbereich 3 liegt, weisen beide Connecting region 4, 4 'may, as in Fig. La, on the other side of the Metal substrate 2 are - see. Reference numeral 4 - or lie on the same side of the metal substrate 2 - see. Reference numeral 4 '. When the second connection portion 4 'is on the same side as the first connection portion 3, both have
Verbindungsbereiche 3, 4' die Koppelschicht 5 auf. Connecting regions 3, 4 'on the coupling layer 5.
Fig. 2b zeigt ein Hohlprofil 7 aus einem ein Halbzeug 1 gemäß Fig. 2a, wobei der erste Verbindungsbereich 3 und der zweite Verbindungsbereich 4 auf unterschiedlichen Seiten des Metallsubstrats 2 liegen. Die Umformung erfolgte analog zu der Fig. Ib. FIG. 2 b shows a hollow profile 7 made of a semifinished product 1 according to FIG. 2 a, wherein the first connection region 3 and the second connection region 4 lie on different sides of the metal substrate 2. The transformation was carried out analogously to FIG. Ib.
Fig. 2c zeigt eine weitere Ausführungsform eines Hohlprofils 7 aus einem Halbzeug 1 gemäß Fig. 2a, wobei der erste Verbindungsbereich 3 und der zweite FIG. 2 c shows a further embodiment of a hollow profile 7 made of a semifinished product 1 according to FIG. 2 a, wherein the first connecting region 3 and the second
Verbindungsbereich 4' auf der gleiche Seite des Metallsubstrats 2 liegen. Die Connecting region 4 'lie on the same side of the metal substrate 2. The
Umformung erfolgte hierbei derart, dass der erste Verbindungsbereich 3 und der zweite Verbindungsbereich 4' zu einem nach außen in einem Winkel 10 vom Umfang Forming in this case was such that the first connection region 3 and the second connection region 4 'to an outward at an angle 10 from the periphery
abstehenden Flansch 9 mit einer doppelt dazwischenliegenden Koppelschicht 5, die durch Erwärmung und Druck mit sich selbst stoffschlüssig verbunden wird, protruding flange 9 with a double intermediate coupling layer 5, which is connected by heating and pressure with self-adhesive,
überlappend angeordnet sind. Hierdurch ergibt sich ein geschlossenes Hohlprofil 7, wobei der außenliegende Flansch 9 beispielsweise zur Anbindung an andere Bauteile verwendet werden kann. Durch die vollflächig ausgebildete Koppelschicht 5 ergibt sich ebenfalls eine geschlossene Beschichtung des Innenumfangs des Hohlprofils 7, wodurch der Hohlraum des Hohlprofils 7 versiegelt ist. are arranged overlapping. This results in a closed hollow profile 7, wherein the outer flange 9 can be used for example for connection to other components. Due to the full surface trained coupling layer 5 also results in a closed coating of the inner periphery of the hollow section 7, whereby the cavity of the hollow section 7 is sealed.
Fig. 3a zeigt eine analoge Ausführungsform zu Fig. la, wobei die Koppelschicht 5, 5' lokal auf dem ersten und dem zweiten Verbindungsbereich 3, 4 vorgesehen ist. Fig. 3a shows an analogous embodiment to Fig. La, wherein the coupling layer 5, 5 'is provided locally on the first and the second connection region 3, 4.
Entsprechend zeigt Fig. 3b eine analoge Ausführung zu Fig. lb, wobei die Accordingly, Fig. 3b shows an analogous embodiment to Fig. Lb, wherein the
Koppelschichten 5, 5' der erste und zweite Verbindungsbereich 3, 4 über einen Teil des Umfangs 8 miteinander verbunden, insbesondere verklebt bzw. verschweißt, sind. Coupling layers 5, 5 ', the first and second connecting portion 3, 4 connected to each other over a portion of the circumference 8, in particular glued or welded, are.
Bei einer in Fig. 4a gezeigten Ausführungsform des Halbzeugs 1 erstreckt sich die Koppelschicht 5 vom ersten Verbindungsbereich 3 über die Breite des Metallsubstrats 2 bis zum dem zweiten Verbindungsbereich 4, wobei der zweite Verbindungsbereich 4 keine Koppelschicht 5 aufweist. Auf der Koppelschicht 5 ist abgesehen von dem ersten und zweiten Verbindungsbereich 3, 4 ein weiteres Metallsubstrat 6 vorgesehen. Das weitere Metallsubstrat 6 weist somit eine in etwa dem Umfang des fertigen Hohlprofils abzüglich des über einen Teil des Umfangs 8 verlaufenden Verbindungsbereichs entsprechenden Breite auf. Andere Breiten sowie die Verwendung von In an embodiment of the semifinished product 1 shown in FIG. 4 a, the coupling layer 5 extends from the first connection region 3 across the width of the metal substrate 2 to the second connection region 4, the second connection region 4 having no coupling layer 5. On the coupling layer 5, apart from the first and second connecting region 3, 4, a further metal substrate 6 is provided. The Further metal substrate 6 thus has a width approximately corresponding to the circumference of the finished hollow profile minus the connecting region extending over part of the circumference 8. Other widths as well as the use of
Sandwichmaterial für das weitere Metallsubstrat 6 sind ebenfalls möglich. Als Sandwich material for the further metal substrate 6 are also possible. When
Sandwichmaterial sind insbesondere ein mehrlagiger Verbund mit metallischen Sandwich material is in particular a multilayer composite with metallic
Deckblechen und eine, insbesondere beispielsweise mit Kohle-, Glas-, Basalt- oder Aramidfaser faserverstärkte, Kunststoffschicht geeignet. Durch derartige Aufbauten des Halbzeugs 1 kann gezielt die Oberfläche oder die mechanischen Eigenschaften des Hohlprofils beeinflusst werden. Cover plates and a, in particular, for example, carbon, glass, basalt or aramid fiber-reinforced plastic layer suitable. By such structures of the semifinished product 1, the surface or the mechanical properties of the hollow profile can be selectively influenced.
Fig. 4b zeigt ein Hohlprofil 7 aus einem Halbzeug 1 gemäß der in Fig. 4a dargestellten Ausführungsform. Durch ein Aussparen der Koppelschicht 5 im Bereich des zweiten Verbindungsbereichs 4 und einem sich in etwa bis zu diesem Bereich erstreckenden weiteren Metallsubstrat 6 ergibt sich ein Hohlprofil 7 mit einer im wesentlichen konstanten Wandstärke. Fig. 4b shows a hollow section 7 of a semifinished product 1 according to the embodiment shown in Fig. 4a. By omitting the coupling layer 5 in the region of the second connection region 4 and a further metal substrate 6 extending approximately up to this region, a hollow profile 7 with a substantially constant wall thickness results.
In Fig. 5 ist eine Ausführungsform eines Halbzeugs 1 gezeigt, welches beidseitig vollflächig mit einer Koppelschicht 5, 5' versehen ist. Derartige Halbzeuge 1 weisen, neben den zu Fig. 2a erläuterten, noch den Vorteil auf, dass flexibel und bedarfsabhängig gewählt werden kann, auf welcher Seite der zweite Verbindungsbereich 4, 4' vorgesehen ist. Bei den hieraus hergestellten Hohlprofilen 7 liegen stets ein erster und eine zweiter Verbindungsbereich 3, 4, 4' mit einer Koppelschicht 5, 5' vor, weshalb immer 5, an embodiment of a semifinished product 1 is shown, which is provided on both sides of the entire surface with a coupling layer 5, 5 '. Such semifinished products 1, in addition to those explained with reference to FIG. 2a, still have the advantage that it is possible to choose flexibly and as needed, on which side the second connection region 4, 4 'is provided. In the case of the hollow profiles 7 produced therefrom, there are always a first and a second connecting region 3, 4, 4 'with a coupling layer 5, 5', which is why always
Verbindungen mit doppelter Koppelschicht 5, 5', wie beispielsweise in Fig. 2c oder Fig. 3b gezeigt, entstehen. Compounds with double coupling layer 5, 5 ', as shown for example in Fig. 2c or Fig. 3b, arise.
Nicht dargestellt sind weitere Varianten, bei denen, wie in Fig. 2a, der erste und zweite Verbindungsbereich 3, 4 auf der gleichen Seite angeordnet sind, wodurch Hohlprofile analog zu Fig. 2c möglich sind, die einen überlappenden, vom Umfang abstehenden Flansch 9 bilden, wobei der Flansch 9, wie in Fig. 2c exemplarisch dargestellt, orthogonal nach außen abstehend ausgeführt sein kann. Allerdings sind auch Not shown are further variants in which, as in Fig. 2a, the first and second connection portion 3, 4 are arranged on the same side, whereby hollow profiles analogous to Fig. 2c are possible, which form an overlapping flange 9 projecting from the circumference , wherein the flange 9, as shown by way of example in Fig. 2c, may be designed to extend orthogonally outwardly. However, too
innenliegende Flansche 9 und/oder andere Winkel 10 zur Umfangsfläche, z.B. 45°, möglich. Fig. 6 ist eine vereinfachte schematische Darstellung der wesentlichen internal flanges 9 and / or other angle 10 to the peripheral surface, for example 45 ° possible. Fig. 6 is a simplified schematic representation of the essential
Verfahrensschritte für die Herstellung eines erfindungsgemäßen Hohlprofils aus einem erfindungsgemäßen Halbzeug. Zunächst wird in Schritt A das Halbzeug umgeformt, um die Form des Hohlprofils zu erzeugen. Anschließend wird in Schritt B zumindest im Bereich des ersten und/oder zweiten Verbindungsbereichs die Koppelschicht erwärmt, um diese zu erweichen und/oder zu aktivieren und für den Schritt C vorzubereiten. In Schritt C werden der erste und zweite Verbindungsbereich miteinander verpresst, um die Koppelschicht mit dem Metallsubstrat zu verbinden beziehungsweise mit einer weiteren Koppelschicht oder weiterem Abschnitt der gleichen Koppelschicht zu verkleben bzw. verschweißen. Anschließend wird das Hohlprofil in Schritt D abgekühlt, vorzugsweise unter zumindest zeitweiser Aufrechterhaltung von zumindest einem Teil des Pressdrucks aus Schritt C, um die Verbindung zu verfestigen. Dadurch liegt ein geschlossenes Hohlprofil vor. Process steps for the production of a hollow profile according to the invention from a semifinished product according to the invention. First, in step A, the semi-finished product is formed to produce the shape of the hollow profile. Subsequently, in step B, at least in the region of the first and / or second connection region, the coupling layer is heated in order to soften it and / or to activate it and to prepare it for step C. In step C, the first and second connection regions are pressed together in order to connect the coupling layer to the metal substrate or to bond or weld to a further coupling layer or further section of the same coupling layer. Subsequently, the hollow profile is cooled in step D, preferably with at least temporary maintenance of at least part of the pressing pressure from step C in order to solidify the connection. This is a closed hollow profile.
Fig. 7 stellt einen Verfahrensablauf mit den gleichen Schritten A bis D dar, wie zu Fig. 6 erläutert. Mit dem Unterschied, dass der Schritt B der Erwärmung vor Schritt A der Umformung erfolgt, wobei bevorzugt das komplette Halbzeug erwärmt wird. FIG. 7 illustrates a process flow with the same steps A to D as explained with reference to FIG. 6. With the difference that the step B of the heating takes place before step A of the forming, whereby preferably the complete semi-finished product is heated.
Insbesondere bei einer thermoplastischen Koppelschicht aus einem bei In particular, in a thermoplastic coupling layer of a at
Raumtemperatur relativ spröden Kunststoff oder Halbzeugen mit einem weiteren Metallsubstrat, insbesondere aus einem Sandwichmaterial mit Faserverstärkung, wirkt sich eine Erwärmung vor Umformung vorteilhaft auf den Prozess aus, da die Room temperature relatively brittle plastic or semi-finished with another metal substrate, in particular from a sandwich material with fiber reinforcement, heating before forming has an advantageous effect on the process, as the
erforderlichen Umformkräfte reduziert und die Gefahr von Beschädigung oder Bruch der Koppelschicht in den umzuformenden Bereichen des Hohlprofils vermieden werden. In einer weiteren Ausführungsform kann nach dem Umformen des erwärmten Bauteils nochmals eine Erwärmung insbesondere der ersten und zweiten Verbindungsbereiche erfolgen. required Umformkräfte reduced and the risk of damage or breakage of the coupling layer in the reshaped areas of the hollow profile can be avoided. In a further embodiment, heating of the first and second connection regions can take place once the heated component has been formed again.
Weitere Verfahrensschritte, wie Zuschneiden des Halbzeugs zu Rohlingen oder Further process steps, such as cutting the semifinished product into blanks or
Ablängen von kontinuierlich hergestellten Hohlprofilen sowie weitere bauteilabhängige Ver- und Bearbeitungen sind nicht dargestellt. Cutting to length of continuously produced hollow profiles and other component-dependent processing and processing are not shown.
Generell ist die Erfindung nicht auf die beschriebenen Ausführungsformen beschränkt, sondern diese können beliebig kombiniert werden. Bezugszeichenliste In general, the invention is not limited to the embodiments described, but these can be combined as desired. LIST OF REFERENCE NUMBERS
1 Halbzeug 1 semi-finished product
2 Metallsubstrat  2 metal substrate
3 erster Verbindungsbereich  3 first connection area
4, 4' zweiter Verbindungsbereich 4, 4 'second connection area
5,5' Koppelschicht 5.5 'coupling layer
6 weiteres Metallsubstrat  6 additional metal substrate
7 Hohlprofil  7 hollow profile
8 Teil des Umfangs mit überlappenden Verbindungsbereichen 8 part of the circumference with overlapping connection areas
9 Flansch (abstehende überlappende Verbindungsbereiche)9 flange (protruding overlapping connection areas)
10 Winkel zwischen Flansch und Umfangsfläche 10 angle between flange and peripheral surface
A Umformschritt A forming step
B Erwärmen der Koppelschicht  B heating of the coupling layer
C Verpressen der Verbindungsbereiche  C pressing the connection areas
D Abkühlen  D cooling down

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Hohlprofil (7), welches einen geschlossenen Querschnitt aufweist, hergestellt aus einem Halbzeug (1), wobei das Halbzeug (1) eine Breite aufweist, die größer als der Umfang des herzustellenden Hohlprofils (7) ist, aufweisend ein 1. hollow profile (7), which has a closed cross-section, made of a semi-finished product (1), wherein the semifinished product (1) has a width which is greater than the circumference of the hollow profile (7) to be produced, comprising
Metallsubstrat (2), welches einen ersten Verbindungsbereich (3) und einen zweiten Verbindungsbereich (4, 4') umfasst, dadurch gekennzeichnet, dass der erste und/oder zweite Verbindungsbereich (3, 4, 4') mit einer thermoplastischen Koppelschicht (5, 5') beschichtet ist, dass der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') sich zumindest über einen Teil des Umfangs (8) überlappen, und dass der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') durch die thermoplastische Koppelschicht (5, 5') verbunden sind.  Metal substrate (2) which comprises a first connection region (3) and a second connection region (4, 4 '), characterized in that the first and / or second connection region (3, 4, 4') is provided with a thermoplastic coupling layer (5, 5 '), that the first connection region (3) and the second connection region (4, 4') overlap at least over part of the circumference (8), and that the first connection region (3) and the second connection region (4, 4 ') through the thermoplastic coupling layer (5, 5') are connected.
2. Hohlprofil (7), welches einen geschlossenen Querschnitt aufweist, hergestellt aus einem Halbzeug (1), wobei das Halbzeug (1) eine Breite aufweist, die größer als der Umfang des herzustellenden Hohlprofils (7) ist, aufweisend ein 2. hollow profile (7), which has a closed cross-section, made of a semifinished product (1), wherein the semifinished product (1) has a width which is greater than the circumference of the hollow profile (7) to be produced, comprising
Metallsubstrat (2), welches einen ersten Verbindungsbereich (3) und einen zweiten Verbindungsbereich (4, 4') umfasst, dadurch gekennzeichnet, dass der erste und/oder zweite Verbindungsbereich (3, 4, 4') mit einer thermoplastischen Koppelschicht (5, 5') beschichtet ist, dass der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') sich in einem Winkel (10) vom Umfang abstehenden Flansch (9) überlappen, und dass der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') durch die thermoplastische  Metal substrate (2) which comprises a first connection region (3) and a second connection region (4, 4 '), characterized in that the first and / or second connection region (3, 4, 4') is provided with a thermoplastic coupling layer (5, 5 ') is coated such that the first connection region (3) and the second connection region (4, 4') overlap at an angle (10) from the flange flange (9), and that the first connection region (3) and the second connection region (3) Connecting region (4, 4 ') through the thermoplastic
Koppelschicht (5, 5') verbunden sind.  Coupling layer (5, 5 ') are connected.
3. Hohlprofil (7) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das 3. hollow profile (7) according to claim 1 or 2, characterized in that the
Hohlprofil (7) in Längsrichtung unterschiedliche Querschnitte aufweist.  Hollow profile (7) has different cross-sections in the longitudinal direction.
4. Halbzeug (1) zur Herstellung eines Hohlprofils (7) nach Anspruch 1, wobei das Halbzeug (1) eine Breite aufweist, die größer als der Umfang des herzustellenden Hohlprofils (7) ist, aufweisend ein Metallsubstrat (2), welches einen ersten Verbindungsbereich (3) und einen zweiten Verbindungsbereich (4, 4') umfasst, wobei der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') in Breitenrichtung in entgegensetzten Randbereichen und auf 4. semifinished product (1) for producing a hollow profile (7) according to claim 1, wherein the semifinished product (1) has a width which is greater than the circumference of the hollow profile (7) to be produced, comprising a metal substrate (2) having a first Connection region (3) and a second connection region (4, 4 '), wherein the first connection region (3) and the second connection region (4, 4') in the width direction in opposite edge regions and on
unterschiedlichen Seiten des Metallsubstrats (2) liegen, dadurch gekennzeichnet, dass der erste und/oder zweite Verbindungsbereich (3, 4, 4') mit einer thermoplastischen Koppelschicht (5, 5') beschichtet ist.  lying on different sides of the metal substrate (2), characterized in that the first and / or second connection region (3, 4, 4 ') with a thermoplastic coupling layer (5, 5') is coated.
5. Halbzeug (1) zur Herstellung eines Hohlprofils (7) nach Anspruch 2, wobei das Halbzeug (1) eine Breite aufweist, die größer als der Umfang des herzustellenden Hohlprofils (7) ist, aufweisend ein Metallsubstrat (2), welches einen ersten Verbindungsbereich (3) und einen zweiten Verbindungsbereich (4, 4') umfasst, wobei der erste Verbindungsbereich (3) und der zweite Verbindungsbereich (4, 4') in Breitenrichtung in entgegensetzten Randbereichen und auf der gleichen Seiten des Metallsubstrats (2) liegen, dadurch gekennzeichnet, dass der erste und/oder zweite Verbindungsbereich (3, 4, 4') mit einer thermoplastischen Koppelschicht (5, 5') beschichtet ist. 5. semifinished product (1) for producing a hollow profile (7) according to claim 2, wherein the semifinished product (1) has a width which is greater than the circumference of the hollow profile (7) to be produced, comprising a metal substrate (2), which has a first Connecting portion (3) and a second connecting portion (4, 4 '), wherein the first connecting portion (3) and the second connecting portion (4, 4') in the width direction in opposite edge regions and on the same sides of the metal substrate (2), characterized in that the first and / or second connection region (3, 4, 4 ') is coated with a thermoplastic coupling layer (5, 5').
6. Halbzeug (1) nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass sich die thermoplastische Koppelschicht (5, 5') vollflächig über die Breite des 6. semifinished product (1) according to claim 4 or 5, characterized in that the thermoplastic coupling layer (5, 5 ') over the entire surface over the width of
Metallsubstrat (2) erstreckt.  Metal substrate (2) extends.
7. Halbzeug (1) nach Anspruch 6, dadurch gekennzeichnet, dass auf der 7. Semi-finished product (1) according to claim 6, characterized in that on the
Koppelschicht (5, 5') abgesehen von dem ersten und/oder zweiten  Coupling layer (5, 5 ') apart from the first and / or second
Verbindungsbereich (3, 4, 4') ein weiteres Metallsubstrat (6) angeordnet ist.  Connection region (3, 4, 4 ') a further metal substrate (6) is arranged.
8. Halbzeug (1) nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass das Metallsubstrat (2) ein Sandwichmaterial aus mindestens zwei Deckblechen und einer dazwischenliegenden Kunststoffschicht, insbesondere faserverstärkte Kunststoffschicht, ist. 8. semifinished product (1) according to one of claims 4 to 7, characterized in that the metal substrate (2) is a sandwich material of at least two cover plates and an intermediate plastic layer, in particular fiber-reinforced plastic layer.
9. Halbzeug (1) nach einem der Ansprüchen 4 bis 8, dadurch gekennzeichnet, dass das Metallsubstrat (2) in Längsrichtung unterschiedliche Breiten aufweist. 9. semifinished product (1) according to one of claims 4 to 8, characterized in that the metal substrate (2) has different widths in the longitudinal direction.
10. Halbzeug (1) nach einem der Ansprüchen 4 bis 9, dadurch gekennzeichnet, dass die Koppelschicht (5, 5') als faserverstärkte Koppelschicht (5, 5') ausgebildet ist. 10. Semifinished product (1) according to one of claims 4 to 9, characterized in that the coupling layer (5, 5 ') as a fiber-reinforced coupling layer (5, 5') is formed.
11. Verfahren zur Herstellung eines Hohlprofils (7) nach einem der Ansprüche 1 bis 3 aus einem Halbzeug (1) gemäß einem der Ansprüche 4 bis 10, wobei die Herstellung eines geschlossenen Hohlprofil (7) folgende Schritte beinhaltet,11. A method for producing a hollow profile (7) according to one of claims 1 to 3 from a semifinished product (1) according to one of claims 4 to 10, wherein the production of a closed hollow profile (7) comprises the following steps,
A Umformen des Metallsubstrats (2) derart, dass der erste VerbindungsbereichA forming the metal substrate (2) such that the first connection region
(3) und der zweite Verbindungsbereich (4, 4') überlappen, (3) and the second connection area (4, 4 ') overlap,
B Erwärmen der thermoplastischen Koppelschicht (5, 5'),  B heating the thermoplastic coupling layer (5, 5 '),
C Aufeinanderpressen des ersten und zweiten Verbindungsbereichs (3, 4, 4'), D Abkühlen der Koppelschicht (5, 5').  C pressing together of the first and second connecting region (3, 4, 4 '), D cooling the coupling layer (5, 5').
EP16812933.6A 2015-12-22 2016-12-14 Semi-finished product for producing hollow profiled sections, hollow profiled sections made therefrom, and method for producing same Withdrawn EP3393779A1 (en)

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DE102015226474.2A DE102015226474A1 (en) 2015-12-22 2015-12-22 Semi-finished products for the production of hollow profiles, hollow profiles thereof and methods for their production
PCT/EP2016/080966 WO2017108526A1 (en) 2015-12-22 2016-12-14 Semi-finished product for producing hollow profiled sections, hollow profiled sections made therefrom, and method for producing same

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ES438136A1 (en) * 1974-06-05 1977-02-01 Scanovator Ab Improvements in the manufacture of hollow elements for the construction of armor. (Machine-translation by Google Translate, not legally binding)
DE2739321C2 (en) * 1977-09-01 1982-09-02 Karl Heinz 3353 Bad Gandersheim Vahlbrauk Process for the production of a plastic-coated metal pipe for installation purposes
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