DE10146406C1 - Multi-layer composite pipe formed from plastic bonded with metal tube formed from strip, includes space in bonding agent allowing escape of diffusing water vapor - Google Patents

Multi-layer composite pipe formed from plastic bonded with metal tube formed from strip, includes space in bonding agent allowing escape of diffusing water vapor

Info

Publication number
DE10146406C1
DE10146406C1 DE10146406A DE10146406A DE10146406C1 DE 10146406 C1 DE10146406 C1 DE 10146406C1 DE 10146406 A DE10146406 A DE 10146406A DE 10146406 A DE10146406 A DE 10146406A DE 10146406 C1 DE10146406 C1 DE 10146406C1
Authority
DE
Germany
Prior art keywords
pipe
tube
plastic
metal
adhesion promoter
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.)
Expired - Fee Related
Application number
DE10146406A
Other languages
German (de)
Inventor
Willy Hendrickx
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.)
Henco Industries NV
Original Assignee
Henco Industries NV
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 Henco Industries NV filed Critical Henco Industries NV
Priority to DE10146406A priority Critical patent/DE10146406C1/en
Application granted granted Critical
Publication of DE10146406C1 publication Critical patent/DE10146406C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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 non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/32—Layered products comprising a layer 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/185—Articles comprising two or more components, e.g. co-extruded layers the components being layers comprising six or more components, i.e. each component being counted once for each time it is present, e.g. in a layer
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0641—MDPE, i.e. medium density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/065—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
    • B29K2081/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide or derivatives thereof
    • 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
    • B29L2023/00—Tubular articles
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • 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
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/043—HDPE, i.e. high density polyethylene
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • 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
    • B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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
    • B32B2333/00—Polymers of unsaturated acids or derivatives thereof
    • B32B2333/04—Polymers of esters
    • B32B2333/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • 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
    • B32B2355/00—Specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of index codes B32B2323/00 - B32B2333/00
    • B32B2355/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2377/00—Polyamides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Bonding agent (2a) intervenes between the plastic pipe (1) and the metal pipe (3). Into the bonding agent a space is formed to receive water vapor diffusing through the plastic pipe, to permit its escape. The space is formed by longitudinal and/or transverse and/or spiral grooves or impressions. An Independent claim is included for the method of manufacture, in which the space is formed in the bonding agent during extrusion. Preferred features: Intermediate bonding agent joins the metal tube (3) to a further, surrounding plastic pipe (4).

Description

Die Erfindung betrifft ein Mehrschicht-Verbundrohr, bestehend aus einem inneren Kunststoffrohr und einem aus Bandmaterial herge­ stellten Metallrohr, wobei das Kunststoffrohr und das Metallrohr unter Zwischenfügung eines Haftvermittlers miteinander verbunden sind. Weiterhin betrifft die Erfindung ein Herstellungsverfahren für ein solches Mehrschicht-Verbundrohr.The invention relates to a multilayer composite pipe consisting of an inner plastic tube and one from tape material posed metal pipe, with the plastic pipe and the metal pipe under Intermediate placement of an adhesion promoter. The invention further relates to a production method for a such multilayer composite pipe.

Ein derartiges gattungsgemäßes Mehrschicht-Verbundrohr ist aus der DE 43 04 717 A1 bekannt. Dieses Mehrschicht-Verbundrohr ist als Fünf-Schicht-Verbundrohr mit einem inneren Kunststoffrohr herge­ stellt, das unter Zwischenfügung einer Schicht eines Haftvermittlers von einem Metallrohr und dieses wiederum unter Zwischenfügung einer weiteren Schicht eines Haftvermittlers von einem äußeren Kunststoffrohr umgeben ist. Bei diesem Mehrschicht-Verbundrohr tritt eventuell der Effekt auf, dass durch das innere Kunststoffrohr hindurchgeleitetes Heißwasser in Form von (Wasser)-Dampf durch das innere Kunststoffrohr hindurchdiffundiert und bis zu dem Metallrohr gelangt. Durch das Metallrohr ist ein Hindurchdiffundieren nicht möglich.Such a generic multilayer composite pipe is from the DE 43 04 717 A1 known. This multilayer composite pipe is as Five-layer composite pipe with an inner plastic pipe provides that with the interposition of a layer of an adhesion promoter of a metal pipe and this in turn with the interposition another layer of an adhesion promoter from an outer Plastic pipe is surrounded. This multilayer composite pipe occurs possibly the effect on that through the inner plastic tube passed through hot water in the form of (water) steam the inner plastic tube diffuses through and up to the Metal pipe arrives. Diffusion through the metal tube not possible.

Aus der weiterhin bekannten CH-PS 543 698 ist bekannt, ein inneres Kunststoffrohr und ein das Kunststoffrohr umgebende Metallrohr über Verbindungselemente miteinander zu verbinden. Dabei verbleiben zwischen den separaten Verbindungselementen beziehungsweise zwischen dem/den fortlaufenden Verbindungselement(en) Zwischenräume, in deren Bereich das Kunststoffrohr und das Metallrohr beabstandet zueinander angeordnet sind. Die Problematik des durch das Kunststoffrohr diffundierenden Wasserdampfs ist in dem Dokument nicht erwähnt. Vielmehr wird in den Zwischenräumen Korrosion erzeugendes Kondenswasser festgehalten, das sich nicht entlang des ganzen Rohres bewegen soll.From the still known CH-PS 543 698 an inner is known Plastic pipe and a metal pipe surrounding the plastic pipe To connect fasteners with each other. Remain there between the separate connecting elements respectively between the continuous connecting element (s)  Spaces in the area of which the plastic pipe and the Metal pipe are spaced from each other. The problem of the water vapor diffusing through the plastic pipe is in not mentioned in the document. Rather, it is in the gaps Corrosion-causing condensed water is held, which is not should move along the entire pipe.

Die CH 674 763 A5 nennt das Problem des Diffundierens von Wasserdampf durch ein Innenrohr. Dieser durch das Innenrohr diffundierende Wasserdampf wird von einer Metallfolie aufgehalten, wobei zwischen dem Innenrohr und der Metallfolie ein Polstermaterial eingefügt ist, das spiralförmig aufgewickelt oder in Längsrichtung umgelegt wird. Das Polstermaterial ist zusammendrückbar, um Expansionsbewegungen des Innenrohrs aufzufangen.CH 674 763 A5 mentions the problem of diffusing Water vapor through an inner tube. This through the inner tube diffusing water vapor is stopped by a metal foil, a cushioning material between the inner tube and the metal foil is inserted, which is wound spirally or in the longitudinal direction is flipped. The padding material is compressible to Catch expansion movements of the inner tube.

Die DE 195 36 698 C1 lehrt zwischen einem Innenrohr und einem Metall-Außenrohr einen Luftspalt zu realisieren, der bei der Verschweißung des Metall-Außenrohrs und dessen anschließender Bearbeitung weitgehend oder vollständig verschwindet.DE 195 36 698 C1 teaches between an inner tube and one Metal outer tube to realize an air gap at the Welding the metal outer tube and its subsequent Editing largely or completely disappears.

Die DE-PS 11 77 432 zeigt ein Rohr, das geschweißt oder gelötet wird und somit aus einem metallischen Werkstoff besteht. Dieses Rohr wird zur Wärmeisolierung mit einer Hülle in Sägezahnform umgeben.DE-PS 11 77 432 shows a tube that is welded or soldered is and thus consists of a metallic material. This Pipe is used for heat insulation with a sawtooth shell surround.

Der Erfindung liegt die Aufgabe zugrunde, ein besseres Mehrschicht- Verbundrohr zu schaffen und ein entsprechendes Herstellungsver­ fahren anzugeben, das fertigungstechnisch einfach umsetzbar sein soll.The invention has for its object to provide a better multilayer To create composite pipe and a corresponding manufacturing drive to specify, the manufacturing technology to be easily implemented should.

Diese Aufgabe wird dadurch gelöst, dass in den Haftvermittler zwischen dem Kunststoffrohr und dem Metallrohr eine Ausweichzone als Aufnahmeraum für durch das Kunststoffrohr diffundierenden Wasserdampf angeordnet ist und dass die Ausweichzone aus Rillen, insbesondere aus Längsrillen und/oder Querrillen und/oder Spiralrillen oder aus Eindrückungen gebildet ist. Gemäß dem Herstellungsverfahren wird diese Ausweichzone während des Herstellungsvorgangs des Mehrschicht-Verbundrohrs zwischen dem Kunststoffrohr und dem Metallrohr angeordnet. Das eventuelle Diffun­ dieren vom Wasserdampf durch das Kunststoffrohr hindurch ist ein prinzipiell unerwünschter Vorgang, der aber praktisch nicht gänzlich zu verhindern ist. Daher wird durch das für Wasserdampf undurchläs­ sige Metallrohr verhindert, dass der Wasserdampf nach außen aus dem Mehrschicht-Verbundrohr austreten kann. Der Wasserdampf bzw. das Wasser gelangt somit in die Ausweichzone und wird von dort über zumindest einen Abschnitt des Mehrschicht-Verbundrohrs verteilt. Dabei ist die Ausweichzone als zumindest ein Ausweichraum zu verstehen, der zwischen dem Kunststoffrohr von dem Metallrohr angeordnet ist. Die Ausweichzone ist in den Haftvermittler eingelassen. Diese Ausführungsform ist fertigungstechnisch leicht umsetzbar, indem die Ausweichzone in Form von insbesondere Längsrillen oder Spiralrillen beim Extrudieren des Mehrschicht- Verbundrohres beispielsweise durch entsprechende Gestaltung des Extruderkopfes oder Drehung des entstehenden Mehrschicht- Verbundrohres in den Haftvermittler eingeformt werden. Querrillen oder Eindrückungen können während oder nach dem Extrusionsvorgang in den Haftvermittler durch entsprechende Werkzeuge eingeformt werden. Vorteil aller dieser Ausgestaltungen ist es, dass gezielt Ausweichräume geschaffen sind, ohne dass das Mehrschicht-Verbundrohr geschwächt oder die Gefahr von entstehenden Beschädigungen besteht. Zudem ist durch die Kompensationszone im Normalfall eine zusätzliche Isolierung durch die luftgefüllten Ausweichräume gegeben. This problem is solved in that in the adhesion promoter an escape zone between the plastic pipe and the metal pipe  as a receiving space for diffusing through the plastic tube Water vapor is arranged and that the evasive zone of grooves, in particular from longitudinal grooves and / or transverse grooves and / or Spiral grooves or formed from indentations. According to the Manufacturing process this evasion zone during the Manufacturing process of the multilayer composite pipe between the Plastic pipe and the metal pipe arranged. The possible diffusion Dieren of water vapor through the plastic pipe is a principally undesirable process, but practically not entirely is to be prevented. Therefore, it is impermeable to water vapor metal pipe prevents the water vapor from escaping to the outside can emerge from the multilayer composite pipe. The steam or the water thus gets into the escape zone and is from there over at least a section of the multilayer composite pipe distributed. The evasive zone is at least one evasive space to understand the between the plastic pipe from the metal pipe is arranged. The escape zone is in the adhesion promoter admitted. This embodiment is easy to manufacture feasible by the evasion zone in the form of in particular Longitudinal grooves or spiral grooves when extruding the multilayer Composite pipe, for example, by appropriate design of the Extruder head or rotation of the resulting multilayer Composite tube are molded into the coupling agent. transverse grooves or impressions can occur during or after the Extrusion process in the adhesion promoter through appropriate Tools are molded. Advantage of all of these configurations it is that deliberate alternative spaces are created without this Multi-layer composite pipe weakened or the risk of resulting damage exists. In addition, the Compensation zone in the normal case with additional insulation given the air-filled alternative rooms.  

In weiterer Ausgestaltung der Erfindung ist das Metallrohr unter Zwischenfügung von einem Haftvermittler von einem weiteren, äußeren Kunststoffrohr umgeben. Ein derartiges Fünf-Schicht-Ver­ bundrohr hat sich als besonders vorteilhaft erwiesen. Dabei besteht das innere und äußere Kunststoffrohr bevorzugt aus HDPE, HDPEXC, HDPEXb, HDPEXa, MDPEXc, MDPE, LDPE, LLDPE, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, P.V.D.F., HDPE-RT, MDPE-RT, PE-RT, HDPEXc-RT, MDPEXc-RT, LDPEXc, LLDPEXc oder aus einer Kombination davon.In a further embodiment of the invention, the metal tube is surrounded by a further outer plastic tube with the interposition of an adhesion promoter. Such a five-layer composite pipe has proven to be particularly advantageous. The inner and outer plastic pipe is preferably made of HDPE, HDPEXC, HDPEX b , HDPEX a , MDPEX c , MDPE, LDPE, LLDPE, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, PVDF, HDPE-RT, MDPE-RT, PE-RT, HDPEX c -RT, MDPEX c -RT, LDPEX c , LLDPEX c or a combination thereof.

Bezüglich des Herstellungsverfahren ist im Rahmen der Erfindung vorgesehen, zunächst das innere Kunststoffrohr zu fertigen, mit einem Haftvermittler zu überziehen und dann das von einem Metallband­ wickel abgerollte Metallband um den Haftvermittler zu formen und dessen Längskanten gegebenenfalls aneinanderstoßend oder über­ lappend zu verkleben, zu verschweißen oder zu verlöten. Es ist aber im Rahmen der Erfindung ebenfalls vorgesehen, zunächst das Metall­ rohr - wie zuvor beschrieben - aus einem Metallband zu fertigen und während des Fertigungsvorgangs das innere Kunststoffrohr unter Zwischenfügung des Haftvermittlers in das gerade fertiggestellte Metallrohr hineinzuspritzen bzw. extrudieren. Dabei wird die Aus­ weichzone, während des Einspritzens geformt.Regarding the manufacturing process is within the scope of the invention intended to first manufacture the inner plastic tube with a To coat adhesion promoter and then that of a metal tape wrap rolled metal tape to form the bonding agent and its longitudinal edges, if necessary, abutting or over to glue, to weld or to solder. But it is also provided in the context of the invention, first the metal pipe - as described above - to manufacture from a metal strip and the inner plastic tube under during the manufacturing process Intermediate placement of the adhesion promoter in the just finished Inject or extrude metal pipe. The end soft zone, shaped during injection.

Während des Herstellungsvorgangs kann das innere Kunststoffrohr und das dieses unter Zwischenfügung des Haftvermittlers umgebende Metallrohr in einer Hochfrequenzanlage erhitzt werden, um eine gute Haftung zu erhalten. Das ganze Mehrschicht-Verbundrohr kann ab­ schließend durch Elektronenstrahlen vernetzt werden. Falls das Mehrschicht-Verbundrohr aus HDPE-RT, MDPE-RT oder PE-RT, ge­ fertigt ist, kann auf das Vernetzen verzichtet werden. Aus diesen Materia­ lien hergestellte Mehrschicht-Verbundrohre können unvernetzt eingesetzt werden.During the manufacturing process, the inner plastic tube and that surrounding it with the intermediary of the adhesion promoter Metal pipe in a high frequency system can be heated to good To get liability. The whole multi-layer composite pipe can finally crosslinked by electron beams. If that Multi-layer composite pipe made of HDPE-RT, MDPE-RT or PE-RT, ge is completed, crosslinking can be dispensed with. From these materia Multi-layer composite pipes produced can be used uncrosslinked become.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind der Zeich­ nungsbeschreibung zu entnehmen, in der in den Figuren dargestellte Ausführungsbeispiele der Erfindung näher beschrieben sind. Further advantageous embodiments of the invention are the drawing can be seen in the description shown in the figures Embodiments of the invention are described in more detail.  

Es zeigen:Show it:

Fig. 1: einen Schnitt durch das erfindungsgemäße Mehrschicht- Verbundrohr, Fig. 1 shows a section through the inventive multi-layer composite pipe,

Fig. 2a bis 2d: Ausgestaltungen der Ausweichräume, Figures 2a to 2d. Embodiments of the deflection spaces,

Fig. 3: eine Detailansicht des Mehrschicht-Verbundrohr nach Fig. 1 und Fig. 3 is a detail view of the multilayer composite pipe of Figures 1 and.

Fig. 4: eine Ausschnittsvergrößerung aus Fig. 3. FIG. 4: an enlarged detail from FIG. 3.

Das Mehrschicht-Verbundrohr gemäß Fig. 1 ist als Fünf-Schicht-Ver­ bundrohr aufgebaut, wobei dieses Mehrschicht-Verbundrohr insbe­ sondere in der Installations- und Heizungstechnik verwendet wird und durch dieses Mehrschicht-Verbundrohr Kaltwasser, Warmwasser und Heißwasser geleitet wird. Das Mehrschicht-Verbundrohr weist ein in­ neres Kunststoffrohr 1 auf, das von einer Schicht eines Haftver­ mittlers 2a umgeben ist. Dem Haftvermittler 2a folgt ein Metallrohr 3, das wiederum von einer Schicht eines Haftvermittlers 2b umgeben ist. An den Haftvermittler 2b schließt sich ein äußeres Kunststoffrohr 4 an. Das Mehrschicht-Verbundrohr wird bevorzugt durch Extrudieren unter gleichzeitiger Herstellung und Einarbeitung des Metallrohres 3 hergestellt. Dabei wird zunächst das innere Kunststoffrohr 1 und der Haftvermittler 2a durch einen oder aufeinanderfolgende Extrusions­ vorgänge hergestellt. In einem nachfolgenden Herstellungsschritt wird Metallband von einem Wickel abgenommen, um die Schicht des Haft­ vermittlers 2a herumgefügt und das Metallband an den zusammen­ gefügten Stoßkanten zu dem Metallrohr 3 gegebenenfalls überlap­ pend verklebt, verlötet oder verschweißt. In einem oder aufeinander­ folgenden weiteren Extrusionsvorgängen wird die weitere Schicht des Haftvermittlers 2b und anschließend das äußere Kunststoffrohr 4 ge­ fertigt. Das innere Kunststoffrohr 1 und ggf. auch das äußere Kunststoffrohr 4 sind bevorzugt aus HDPE, HDPEXc, HDPEXb, HDPEXa, MDPEXc, MDPE, LDPE, LLDPE, HDPE-RT HDPEXc-RT, MDPE-RT, PE- RT, MDPEXc-RT, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, P.V.D.F., LDPEXc, LLDPEXc oder aus einer Kombination davon gefertigt. Das Metallrohr ist insbesondere aus Kupfer, Aluminium, rostfreien Stahl, Stahl, Messing oder anderen Metallen hergestellt.The multilayer composite pipe as shown in FIG. 1 is constructed as a five-layer Ver composite tube, said multilayer composite pipe in particular sondere in the plumbing and heating technique is used, and through this multi-layer composite pipe cold water, hot water and hot water is passed. The multi-layer composite pipe has a neren plastic tube 1 , which is surrounded by a layer of an adhesive 2 a. The adhesion promoter 2 a is followed by a metal tube 3 , which in turn is surrounded by a layer of an adhesion promoter 2 b. An outer plastic tube 4 connects to the adhesion promoter 2 b. The multilayer composite pipe is preferably produced by extrusion with simultaneous production and incorporation of the metal pipe 3 . First, the inner plastic tube 1 and the adhesion promoter 2 a are produced by one or successive extrusion processes. In a subsequent manufacturing step, metal strip is removed from a winding, added to the layer of bonding agent 2 a and the metal strip is glued, soldered or welded to the metal pipe 3, if necessary overlap pend. In one or successive further extrusion processes, the further layer of the adhesion promoter 2 b and then the outer plastic tube 4 is manufactured ge. The inner plastic tube 1 and possibly also the outer plastic tube 4 are preferably made of HDPE, HDPEX c , HDPEX b , HDPEX a , MDPEX c , MDPE, LDPE, LLDPE, HDPE-RT HDPEX c -RT, MDPE-RT, PE-RT , MDPEX c -RT, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, PVDF, LDPEX c , LLDPEX c or a combination thereof manufactured. The metal tube is made in particular of copper, aluminum, stainless steel, steel, brass or other metals.

In die Schicht des Haftvermittlers 2a wird während des Extrusions­ vorgangs die Ausweichzone in Form von Ausweichräumen 5 einge­ lassen. Diese Ausweichräume 5 sind gemäß den Ausführungsbei­ spielen der Fig. 2a, 2b, 2c, 2d ausgestaltet. Gemäß Fig. 2a sind die Ausweichräume 5 als Längsrillen 6 ausgebildet, wobei sich diese Längsrillen 6 besonders leicht durch entsprechende Ausbildung des Extrusionskopfes herstellen lassen. Diese Ausführungsform ist auch in Fig. 1 dargestellt. Dabei können die Längsrillen 6 (wie die Aus­ weichräume 5 insgesamt) alle möglichen verschiedenen Abmes­ sungen haben. Gemäß Fig. 2b sind die Ausweichräume 5 als Quer­ rillen 7 ausgebildet, wobei diese Querrillen 7 zusätzlich durch Längs­ rillen 6 verbunden sein können. Als Herstellungsverfahren für diese Ausführungsform bietet sich an, die Querrillen 7 während des Her­ stellungsvorgangs in das Kunststoffrohr 1, den Haftvermittler 2a und/oder das Metallband beispielsweise durch Einpressen einzuar­ beiten. Für die Spiralrillen 8 gemäß Fig. 2c bietet sich prinzipiell das gleiche Herstellungsverfahren an, wobei diese Spiralrillen 8 aber auch während des Extrusionsvorgangs, beispielsweise durch eine entsprechende Drehbewegung, in den Haftvermittler 2a eingelassen werden können. In dem Ausführungsbeispiel nach Fig. 2d sind in dem Haftvermittler 2a Eindrückungen 10 eingelassen.In the layer of adhesion promoter 2 a, the evasion zone in the form of evacuation spaces 5 is left in during the extrusion process. These alternative rooms 5 are designed according to the exemplary embodiments in FIGS. 2a, 2b, 2c, 2d. According to FIG. 2a, the alternative spaces 5 are designed as longitudinal grooves 6 , these longitudinal grooves 6 being particularly easy to produce by appropriately designing the extrusion head. This embodiment is also shown in FIG. 1. The longitudinal grooves 6 (as from the soft spaces 5 overall) can have all possible different dimensions. According to Fig. 2b, the deflection spaces 5 are as lateral grooves 7 are formed, said transverse grooves 7 in addition groove may be connected by longitudinal. 6 As a manufacturing method for this embodiment, the transverse grooves 7 during the manufacturing process in the plastic tube 1 , the adhesion promoter 2 a and / or the metal strip, for example, by pressing in, are suitable. In principle, the same production method is available for the spiral grooves 8 according to FIG. 2c, but these spiral grooves 8 can also be let into the adhesion promoter 2 a during the extrusion process, for example by a corresponding rotary movement. In the embodiment according to Fig. 2d 10 are embedded in the adhesive agent 2a indentations.

Fig. 3 zeigt einen Ausschnitt des Mehrschicht-Verbundrohres gemäß Fig. 1 und Fig. 4 die in Fig. 3 bezeichnete Stelle als Ausschnittsvergrößerung. Aus der Ausschnittsvergrößerung geht die zahnkranz­ artige Ausbildung des Haftvermittlers 2a hervor, wobei die Räume zwischen den einzelnen Zähnen 9 die Ausweichräume 5 bilden. Während des Herstellungsvorgangs, nämlich nachdem um das innere Kunststoffrohr 1 der Haftvermittler 2a aufgebracht ist und das Metall­ rohr 3 um den Haftvermittler gefertigt ist, kann das soweit hergestellte Mehrschicht-Verbundrohr in einer Hochfrequenzanlage erhitzt werden, um eine gute Haftung insbesondere des Haftvermittlers 2a auf dem Metallrohr 3 zu erhalten. Nachdem das Mehrschicht-Verbundrohr unter Hinzufügung der weiteren Schicht des Haftvermittlers 2b und des äußeren Kunststoffrohres 4 fertiggestellt ist, kann das gesamte Mehrschicht-Verbundrohr durch Elektronenstrahlen vernetzt werden. In diesem Falle sind die Rillen in dem Haftvermittler 2a angeordnet. FIG. 3 shows a section of the multilayer composite pipe according to FIG. 1 and FIG. 4, the location designated in FIG. 3 as an enlarged section. From the enlargement of the toothed rim-like formation of the adhesion promoter 2 a emerges, the spaces between the individual teeth 9 forming the alternative spaces 5 . During the manufacturing process, namely after the bonding agent 2 a is applied around the inner plastic tube 1 and the metal tube 3 is made around the bonding agent, the multi-layer composite tube produced so far can be heated in a high-frequency system in order to ensure good adhesion, in particular of the bonding agent 2 a to get on the metal tube 3 . After the multi-layer composite pipe with the addition of the further layer of the adhesion promoter 2 b and the outer plastic tube 4 is completed, the entire multi-layer composite pipe can be cross-linked by electron beams. In this case, the grooves are arranged in the adhesion promoter 2 a.

Claims (4)

1. Mehrschicht-Verbundrohr, bestehend aus einem Kunststoff­ rohr und einem aus einem Band hergestellten Metallrohr, wobei das Kunststoffrohr und das Metallrohr unter Zwischenfügung eines Haft­ vermittlers miteinander verbunden sind, dadurch gekennzeichnet, dass in den Haftvermittler (2a) zwischen dem Kunststoffrohr (1) und dem Metallrohr (3) eine Ausweichzone als Aufnahmeraum für durch das Kunststoffrohr diffundierenden Wasserdampf angeordnet ist und dass die Ausweichzone aus Rillen, insbesondere aus Längsrillen (6) und/oder Querrillen (7) und/oder Spiralrillen (8) oder aus Eindrückungen (10) gebildet ist.1. multilayer composite tube, consisting of a plastic tube and a metal tube made of a band, the plastic tube and the metal tube being connected to one another with the interposition of an adhesion promoter, characterized in that in the adhesion promoter ( 2 a) between the plastic tube ( 1 ) and the metal pipe ( 3 ), an escape zone is arranged as a receiving space for water vapor diffusing through the plastic pipe, and that the escape zone consists of grooves, in particular longitudinal grooves ( 6 ) and / or transverse grooves ( 7 ) and / or spiral grooves ( 8 ) or impressions ( 10 ) is formed. 2. Mehrschicht-Verbundrohr nach Anspruch 1, dadurch gekennzeichnet, dass das Metallrohr (3) unter Zwischenfü­ gung von einem Haftvermittler (2b) von einem weiteren Kunststoff­ rohr (4) umgeben ist.2. Multi-layer composite pipe according to claim 1, characterized in that the metal pipe ( 3 ) with the interposition of an adhesion promoter ( 2 b) is surrounded by a further plastic pipe ( 4 ). 3. Mehrschicht-Verbundrohr nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Kunststoffrohr (1, 4) aus HDPE, HDPEXc, HDPEXb, HDPEXa, MDPEXc, MDPE, LDPE, LLDPE, HDPE-RT, HDPEXc-RT, PE-RT, MDPE-RT, MDPEXc-RT, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, P.V.D.F., LDPEXc, LLDPEXc oder aus einer Kombination davon be­ steht. 3. Multi-layer composite pipe according to claim 1 or 2, characterized in that the plastic pipe ( 1 , 4 ) made of HDPE, HDPEX c , HDPEX b , HDPEX a , MDPEX c , MDPE, LDPE, LLDPE, HDPE-RT, HDPEX c - RT, PE-RT, MDPE-RT, MDPEX c -RT, PP, PVC, PB, PSU, PPSU, PA, PC, PES, PPS, PS, ABS, POM, PMMA, PBT, PET, PSI, PVDF, LDPEX c , LLDPEX c or a combination thereof. 4. Verfahren zur Herstellung eines Mehrschicht-Verbundrohres, bestehend aus einem Kunststoffrohr und einem aus einem Band hergestellten Metallrohr, wobei das Kunststoffrohr und das Metall­ rohr unter Zwischenfügung eines Haftvermittlers miteinander ver­ bunden sind, dadurch gekennzeichnet, dass während des Herstellungsvorgangs zwischen dem Kunststoffrohr (1) und dem Metallrohr (3) eine Aus­ weichzone als Aufnahmeraum für durch das Kunststoffrohr diffundierenden Wasserdampf angeordnet wird, die beim Extrudieren in dem Haftvermittler (2a) hergestellt wird und dass die Ausweichzone als Rillen, insbesondere als Längsrillen (6) und/oder Querrillen (7) und/oder Spiralrillen (8) oder als Eindrückungen (10) ausgebildet gebildet ist.4. A method for producing a multi-layer composite pipe, consisting of a plastic tube and a metal tube made from a strip, the plastic tube and the metal tube being connected to one another with the interposition of an adhesion promoter, characterized in that during the production process between the plastic tube ( 1 ) and the metal tube ( 3 ) a soft zone is arranged as a receiving space for water vapor diffusing through the plastic tube, which is produced during extrusion in the adhesion promoter ( 2 a) and that the escape zone as grooves, in particular as longitudinal grooves ( 6 ) and / or transverse grooves ( 7 ) and / or spiral grooves ( 8 ) or as indentations ( 10 ) is formed.
DE10146406A 2001-09-20 2001-09-20 Multi-layer composite pipe formed from plastic bonded with metal tube formed from strip, includes space in bonding agent allowing escape of diffusing water vapor Expired - Fee Related DE10146406C1 (en)

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DE10358820B4 (en) * 2003-12-16 2005-09-01 Henco Industries Nv Multilayered compound pipe with an inner and outer plastic pipes and an intermediate metal pipe comprises a reserve zone for diffused water vapor set into the outer surface of the metal pipe
DE10358820A1 (en) * 2003-12-16 2005-07-21 Henco Industries Nv Multilayered compound pipe with an inner and outer plastic pipes and an intermediate metal pipe comprises a reserve zone for diffused water vapor set into the outer surface of the metal pipe
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CN102996917A (en) * 2011-09-08 2013-03-27 张俊达 Mineral nylon galvanized composite pipe
FR3020440A1 (en) * 2014-10-14 2015-10-30 Technip France FLEXIBLE SUBMARINE CONDUIT COMPRISING A LAYER COMPRISING A POLYETHYLENE WITH INCREASED THERMAL RESISTANCE
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EP3206866B1 (en) 2014-10-14 2020-04-29 Technip France Flexible underwater pipe including a layer including a cross-linked polyethylene with increased thermal resistance
CN105064756A (en) * 2015-08-18 2015-11-18 云南驰宏锌锗股份有限公司 Anticorrosion method for improving anticorrosion effect and fixing rigid polyvinyl chloride plate through fusible interlining

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