FR2033555A5 - Insulated household hot-water pipe - Google Patents

Insulated household hot-water pipe

Info

Publication number
FR2033555A5
FR2033555A5 FR6905168A FR6905168A FR2033555A5 FR 2033555 A5 FR2033555 A5 FR 2033555A5 FR 6905168 A FR6905168 A FR 6905168A FR 6905168 A FR6905168 A FR 6905168A FR 2033555 A5 FR2033555 A5 FR 2033555A5
Authority
FR
France
Prior art keywords
plastics
tube
water pipe
insulated
foamed
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
Application number
FR6905168A
Other languages
French (fr)
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.)
Vallourec SA
Original Assignee
Vallourec SA
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 Vallourec SA filed Critical Vallourec SA
Priority to FR6905168A priority Critical patent/FR2033555A5/en
Application granted granted Critical
Publication of FR2033555A5 publication Critical patent/FR2033555A5/en
Expired 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
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Metal tube is insulated with a surrounding continuous sheath of foamed plastics, directly produced on the tube by extrusion and expansion. Pref. the tube is steel. The plastics is closed-cell and is polyethylene, P.V.C. or polystyrene. The tube is passed through an extrusion die and the plastics, foamed by blowing agent, has its outer surface conformed to gauge by a cooled pipe. A second sheath of non-expanded plastics may be extruded around the foamed plastics.
FR6905168A 1969-02-27 1969-02-27 Insulated household hot-water pipe Expired FR2033555A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6905168A FR2033555A5 (en) 1969-02-27 1969-02-27 Insulated household hot-water pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6905168A FR2033555A5 (en) 1969-02-27 1969-02-27 Insulated household hot-water pipe

Publications (1)

Publication Number Publication Date
FR2033555A5 true FR2033555A5 (en) 1970-12-04

Family

ID=9029725

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6905168A Expired FR2033555A5 (en) 1969-02-27 1969-02-27 Insulated household hot-water pipe

Country Status (1)

Country Link
FR (1) FR2033555A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146562A (en) * 1976-06-22 1979-03-27 Sumitomo Chemical Company, Limited Extrusion coating method with polyolefin foam
FR2455974A1 (en) * 1979-05-11 1980-12-05 Nokia Oy Ab EXTRUDER HEAD FOR APPLYING PLASTIC FOAM INSULATION ON A TELEPHONE WIRE
US4397797A (en) * 1979-07-31 1983-08-09 The Furukawa Electric Co., Ltd. Method for extrusion coating of a pipe with a foamed cover layer having three integrally formed cellular sub-layers
WO1992002353A1 (en) * 1989-02-10 1992-02-20 Oy Muotekno Ab Method for coating a steel pipe by extrusion
EP0556665A1 (en) * 1992-02-18 1993-08-25 FRIEDRICH THEYSOHN GmbH Process of manufacturing plastic tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146562A (en) * 1976-06-22 1979-03-27 Sumitomo Chemical Company, Limited Extrusion coating method with polyolefin foam
FR2455974A1 (en) * 1979-05-11 1980-12-05 Nokia Oy Ab EXTRUDER HEAD FOR APPLYING PLASTIC FOAM INSULATION ON A TELEPHONE WIRE
US4397797A (en) * 1979-07-31 1983-08-09 The Furukawa Electric Co., Ltd. Method for extrusion coating of a pipe with a foamed cover layer having three integrally formed cellular sub-layers
WO1992002353A1 (en) * 1989-02-10 1992-02-20 Oy Muotekno Ab Method for coating a steel pipe by extrusion
EP0556665A1 (en) * 1992-02-18 1993-08-25 FRIEDRICH THEYSOHN GmbH Process of manufacturing plastic tubes

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