DE2017433A1 - Flexible aluminium tube - Google Patents

Flexible aluminium tube

Info

Publication number
DE2017433A1
DE2017433A1 DE19702017433 DE2017433A DE2017433A1 DE 2017433 A1 DE2017433 A1 DE 2017433A1 DE 19702017433 DE19702017433 DE 19702017433 DE 2017433 A DE2017433 A DE 2017433A DE 2017433 A1 DE2017433 A1 DE 2017433A1
Authority
DE
Germany
Prior art keywords
pipe
pipe according
aluminum
layer
tube
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.)
Pending
Application number
DE19702017433
Other languages
German (de)
Inventor
Jürgen 5301 Bonn-Röttgen; Scheuten DipL-Ing. Heinz; 5070 Bergisch Gladbach; Schwerdtfeger Oswald Dipl.-Ing. 5000 Köln Gladenbeck
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.)
Felten and Guilleaume Kabelwerke GmbH
Original Assignee
Felten and Guilleaume Kabelwerke GmbH
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 Felten and Guilleaume Kabelwerke GmbH filed Critical Felten and Guilleaume Kabelwerke GmbH
Priority to DE19702017433 priority Critical patent/DE2017433A1/en
Priority to ES1970200938U priority patent/ES200938Y/en
Priority to GB1297293D priority patent/GB1297293A/en
Priority to CH1783070A priority patent/CH523458A/en
Priority to NL7101788A priority patent/NL7101788A/xx
Priority to BE762935A priority patent/BE762935A/en
Priority to FR7105581A priority patent/FR2078786A5/fr
Publication of DE2017433A1 publication Critical patent/DE2017433A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/1063—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sheet wrapped around the pipe
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • 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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • 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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

Flexible aluminium tube is seamless, and has a flexible, sealed coating of Al chromate or Al Cr phosphate formed from the Al of the tube, or of a thermoplastics material such as polyethylene, or an elastic material, and an outer protective cover. Used esp. for water pipes. The pipes are protected externally against corrosion and internally against corrosive fluids.

Description

Biegsames Rohr, insbesondere Wasserleitungsrohr Die Erfindung bezieht sich auf ein biegsames Rohr, das zur Fortleitung von Flüssigkeiten und Gasen dienen kann, und insbesondere als Wasserleitungsrohr bestimmt ist. Das Rohr soll unbedingt dicht sein, soll leicht au verlegen sein und aus-Transportgründen wenig Gewicht haben. Es ist daher als nahtloses Aluminiumrohr ausgebildet.Flexible pipe, particularly water pipe The invention relates to is based on a flexible tube that is used to carry liquids and gases can, and is intended in particular as a water pipe. The pipe should absolutely be tight, should be easy to lay and light weight for reasons of transport to have. It is therefore designed as a seamless aluminum tube.

Erfindungsgemäß besitzt das genannte Rohr an seiner Innenfläche eine dichte und biegsame, gegen aggresive Medien schützende Schicht. Eine solche Schicht bleibt auch bei wiederholtem Biegen, wie es beim Auf- und Umtrommeln sowie beim Verlegen unvermeidlicherweise vorkommt, unversehrt und gew&hrleistet dadurch einen bleibenden Schutz des Aluminiumrohres gegen Zerstörung durch die fortzuleitenden Medien oder in diesen enthaltene aggresive Stoffe.According to the invention, said tube has a on its inner surface dense and flexible layer that protects against aggressive media. Such a layer remains even with repeated bending, as is the case with reeling and reeling as well as with Laying inevitably occurs, undamaged and thus guaranteed a permanent protection of the aluminum pipe against destruction by the forwarding Media or aggressive substances contained in them.

Als eine solche Schicht kann das Rohr nach der Erfindung vorteilhaft an seiner Innenfläche mit einem aus der Aluminiuminnen flache des Rohres bildeten anorganischen Überzug, insbesondere aus Aluminiumchromat oder aus Aluminiumchromphosphat, versehen sein.As such a layer, the pipe according to the invention can be advantageous formed on its inner surface with one of the aluminum inner flat of the tube inorganic coating, in particular made of aluminum chromate or aluminum chromium phosphate, be provided.

Die Herstellung dieses bezuges geschieht vorzugsweise derart, daß man beim Pressen des Aluminiumrohres auf der Strangpresse durch den Hohldorn der Presse hindurch eine den Überzug erzeugende Flüssigkeit auf die Innenwand des Aluminiumrohres aufbringt. Zu diesem Zweck kann vorteilhaft ein Zuleitungsrohr für die genannte Flüssigkeit, das in dem stranggepreßten Aluminiumrohr in hinreichendem Abstand von der Preßmatrize endet, in dem Hohldorn der Presse angeordnet sein.The production of this reference is preferably done in such a way that when pressing the aluminum tube on the extruder through the hollow mandrel of the Press a coating-producing liquid through it onto the inner wall of the aluminum tube brings up. For this purpose, a feed pipe for said Liquid in the extruded aluminum tube at a sufficient distance from the press die ends, be arranged in the hollow mandrel of the press.

Als weitere Ausführungsform kann das Rohr nach der Erfindung an seiner Innenfläche vorteilhaft eine nahtlose, vorzugsweise stranggepreßte Schicht aus thermoplastischem Kunststoff, wie Polyvinylchlorid oder PolySthylen, oder aus thermoelastischem Stoff, wie natürlichem oder synthetischem Gummi, besitzen. Vorzugsweise besteht diese Schicht aus ungefülltem Polyäthylen, das ermährungeghysiologiscrh unbedenklich ist. Zur besseren Verbindung der Schutzschicht mit der metallischen Innenfläche des Rohres kann es sich dabei empfehlen, unmittelbar an der metallaschen Innenfläche des Rohres eine haftvermittelnde Zwlsohenschicht anzuordnen.As a further embodiment, the tube according to the invention can at his The inner surface is advantageously a seamless, preferably extruded, thermoplastic layer Plastic, such as polyvinyl chloride or polyethylene, or made of thermoelastic material, such as natural or synthetic rubber. This layer preferably exists Made of unfilled polyethylene, which is physiologically safe. To the better connection of the protective layer with the metallic inner surface of the pipe it may be advisable to do this directly on the metal inner surface of the pipe to arrange an adhesion-promoting intermediate layer.

Zur Herstellung der Schicht aus thermoplastischem oder thermoelastischem Stoff an der Innenfläche des Rohres wird mit besonderem Vorteil ein Schlauch aus einem solchen Stoff, beispielsweise aus Polyäthylen, in den Hohidorn der Presse, auf der das Aluminiumrohr erzeugt wird, eingeführt und mit dem Aluminiumrohr ummantelt. Bei Verwendung einer haftvermittelnden Zwischenachicht besitzt dabei dieser Schlauch vorteilhaft schon an seiner Außenfläche einen ueberzug aus dem haftvermittelnden Stoff.For making the layer from thermoplastic or thermoelastic Fabric on the inner surface of the pipe is made of a hose with particular advantage such a material, for example made of polyethylene, in the hollow mandrel of the press, on which the aluminum pipe is produced is inserted and connected to the aluminum pipe encased. When using an adhesion-promoting intermediate layer, it has this hose advantageously already has a coating of the adhesive on its outer surface Material.

Auf seiner Außenfläche kann'das Rohr in an sich bekannter Weise einen Korrosicnsschutzmantel besitzen, der beispiesweise aus Polyvinylchlorid nahtlos aufgepreßt sein kann.On its outer surface, the pipe can in a manner known per se Corrosion protection coat, which is seamlessly made of polyvinyl chloride, for example can be pressed on.

Die Zeichnung zeigt beispielsweise eine Ausführungsform eines Rohres nach der Erfindung in Figur l in einer Ansicht und stufenweise abgesetzt, in Figur 2 im Querschnitt.The drawing shows, for example, an embodiment of a pipe according to the invention in Figure l in a view and stepped down in Figure 2 in cross section.

Das nahtlos gepreßte Rohr 1 aus -Aluminium besitzt an seiner Innenfläche eine Schicht 2 aus ungefulltem Polyäthylen, die wiederum als nahtlos gepreßtes Rohr ausgebildet ist. Außen ist ein Korrosionsschutzmantel 3 aus Polyvinylchlorid auf das Rohr 1 aufgebracht.The seamlessly pressed tube 1 made of aluminum has on its inner surface a layer 2 made of unfilled polyethylene, which in turn is a seamlessly pressed tube is trained. A corrosion protection jacket 3 made of polyvinyl chloride is on the outside the tube 1 applied.

Claims (8)

Patentansprüche:Patent claims: 1. Biegsames nahtloses Aluminiumrohr, insbesondere Wasserleitungsrohr, das einen äußeren Korrosionsschutzmantel haben kann, d a d u r C h g e k e n n z e 1 e h n e t, daß es an seiner Innenfläche eine dichte und biegsame, gegen aggresive Medien schützende Schicht besitzt.1.Bendable seamless aluminum pipe, especially water pipe pipe, which can have an outer corrosion protection jacket, which can be used to prevent damage e 1 e n e t that it is dense and flexible on its inner surface, against aggressive Has media protective layer. 2. Rohr nach Anspruch 1, d à d u r c h g e k e n n z e i e hn e t, daß es an seiner Innenfläche einen aus der Aluminiuminnenfläche des Rohres gebildeten anorganischen Überzug -besitzt.2. Pipe according to claim 1, d à d u r c h g e k e n n z e i e hn e t, that it is formed on its inner surface from the aluminum inner surface of the tube inorganic coating. 3. Rohr nach Anspruch 2, d a d u r c h g e k e n n z e i c hn e t, daß es an seiner Innenfläche einen Überzug aus Aluminiumchromat besitzt.3. Pipe according to claim 2, d a d u r c h g e k e n n z e i c hn e t, that it has a coating of aluminum chromate on its inner surface. 4. Rohr nach Anspruch 2, d a d u r c h g e k e n n z e 1 c hn e t, daß es an seiner Innenfläche einen Überzug aus Aluminiumchromphosphat besitzt.4. Pipe according to claim 2, d a d u r c h g e k e n n z e 1 c hn e t, that it has a coating of aluminum chromium phosphate on its inner surface. 5. Rohr nach Anspruch 1, d a d u r c h g e k e n n z e i a hn e t, daß es an-seiner Innenfläche eine nahtlose Schicht aus thermoplastischem Kunststoff besitzt.5. Pipe according to claim 1, d a d u r c h g e k e n n z e i a hn e t, that there is a seamless layer of thermoplastic material on its inner surface owns. 6. Rohr nach Anspruch 1, d a d u r c h g e k e n n z e i c hn e t, daß es an seiner Innenfläche eine nahtlose Schicht aus thermoelastischem Stoff besitzt.6. Pipe according to claim 1, d a d u r c h g e k e n n z e i c hn e t, that it has a seamless layer of thermoelastic material on its inner surface. 7. Rohr nach Anspruch 5, d a d u r c h g e k e n n z e i c hn e t, daß die Schicht an der Innenfläche aus ungefülltem Polyäthylen besteht.7. Pipe according to claim 5, d a d u r c h g e k e n n z e i c hn e t, that the layer on the inner surface consists of unfilled polyethylene. 8. Rohr nach einem der Ansprüche 5 bis 7, d a d u r c h g ek e n n z e i c h n e t, daß es unmittelbar an seiner metalwischen Innenfläche eine haftvermittelnde Zwischenschicht besitzt.8. Pipe according to one of claims 5 to 7, d a d u r c h g ek e n n shows that there is an adhesion-promoting material directly on its metallic inner surface Has intermediate layer.
DE19702017433 1970-04-11 1970-04-11 Flexible aluminium tube Pending DE2017433A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19702017433 DE2017433A1 (en) 1970-04-11 1970-04-11 Flexible aluminium tube
ES1970200938U ES200938Y (en) 1970-04-11 1970-10-27 A FLEXIBLE ALUMINUM TUBE.
GB1297293D GB1297293A (en) 1970-04-11 1970-11-25
CH1783070A CH523458A (en) 1970-04-11 1970-12-02 Flexible aluminum pipe, especially water pipe
NL7101788A NL7101788A (en) 1970-04-11 1971-02-11
BE762935A BE762935A (en) 1970-04-11 1971-02-15 FLEXIBLE TUBE, MORE PARTICULARLY TUBE FOR WATER LINE
FR7105581A FR2078786A5 (en) 1970-04-11 1971-02-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702017433 DE2017433A1 (en) 1970-04-11 1970-04-11 Flexible aluminium tube

Publications (1)

Publication Number Publication Date
DE2017433A1 true DE2017433A1 (en) 1971-10-28

Family

ID=5767828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702017433 Pending DE2017433A1 (en) 1970-04-11 1970-04-11 Flexible aluminium tube

Country Status (1)

Country Link
DE (1) DE2017433A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9114252U1 (en) * 1991-11-15 1992-01-09 Hewing GmbH, 4434 Ochtrup Composite pipe, especially for underfloor heating etc.
DE4310272A1 (en) * 1993-03-30 1994-10-06 Emil Heinrich Friedrich Process for producing multilayered composite tubes with metal inserts
EP0768488A2 (en) * 1995-10-10 1997-04-16 Bundy Corporation Metal tubing coated with multiple layers of polymeric materials
WO1999061833A1 (en) * 1998-05-22 1999-12-02 The B.F. Goodrich Company Multilayer composite pipe, fluid conduit system using multilayer composite pipe and method of making the composite pipe
DE102016101989B4 (en) 2016-02-04 2021-11-18 Standard-Metallwerke Gmbh Process for the production of an aluminum pipe and a pipeline as well as an aluminum pipe and a pipeline

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9114252U1 (en) * 1991-11-15 1992-01-09 Hewing GmbH, 4434 Ochtrup Composite pipe, especially for underfloor heating etc.
DE4310272A1 (en) * 1993-03-30 1994-10-06 Emil Heinrich Friedrich Process for producing multilayered composite tubes with metal inserts
EP0768488A2 (en) * 1995-10-10 1997-04-16 Bundy Corporation Metal tubing coated with multiple layers of polymeric materials
EP0768488A3 (en) * 1995-10-10 1997-04-23 Bundy Corporation Metal tubing coated with multiple layers of polymeric materials
WO1999061833A1 (en) * 1998-05-22 1999-12-02 The B.F. Goodrich Company Multilayer composite pipe, fluid conduit system using multilayer composite pipe and method of making the composite pipe
US6293311B1 (en) 1998-05-22 2001-09-25 Pmd Holdings Corp. Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite
DE102016101989B4 (en) 2016-02-04 2021-11-18 Standard-Metallwerke Gmbh Process for the production of an aluminum pipe and a pipeline as well as an aluminum pipe and a pipeline

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