SE8400399D0 - PROCEDURE FOR MANUFACTURING A PLASTROR - Google Patents

PROCEDURE FOR MANUFACTURING A PLASTROR

Info

Publication number
SE8400399D0
SE8400399D0 SE8400399A SE8400399A SE8400399D0 SE 8400399 D0 SE8400399 D0 SE 8400399D0 SE 8400399 A SE8400399 A SE 8400399A SE 8400399 A SE8400399 A SE 8400399A SE 8400399 D0 SE8400399 D0 SE 8400399D0
Authority
SE
Sweden
Prior art keywords
tube
section
blank
outside
manufacturing
Prior art date
Application number
SE8400399A
Other languages
Swedish (sv)
Other versions
SE451249B (en
SE8400399L (en
Inventor
Y Lundequist
Original Assignee
Wirsbo Bruks Ab
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 Wirsbo Bruks Ab filed Critical Wirsbo Bruks Ab
Priority to SE8400399A priority Critical patent/SE451249B/en
Publication of SE8400399D0 publication Critical patent/SE8400399D0/en
Priority to IT67064/85A priority patent/IT1182376B/en
Priority to ES539806A priority patent/ES8606118A1/en
Priority to PCT/SE1985/000030 priority patent/WO1985003251A1/en
Publication of SE8400399L publication Critical patent/SE8400399L/en
Publication of SE451249B publication Critical patent/SE451249B/en

Links

Classifications

    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02—Thermal shrinking
    • B29C61/025—Thermal shrinking for the production of hollow or tubular articles
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/04—Thermal expansion
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

In a method of manufacturing a plastic tube, a tube blank having substantially constant outside and inside diameters is first manufactured of a plastic material having memory characteristics. This tube blank is then heated and reshaped to a tube (10) having a different outside and/or inside diameter. At least one section (10B) of the tube is then heated to the crystalline melting-point of the plastic material. This tube section then resumes the dimensions of the tube blank, so that the tube obtains at least two sections (10A, 10B) having different outside and/or inside diameters. By drawing the tube to a smaller outside diameter, it is possible to provide a tube having a thinner section (10A) and a thicker section (10B) by the heating to the crystalline melting-point. The thinner section gives the tube an increased flexibility, and the thicker section gives a better possibility to provide the tube with a large collar (17) for connecting the tube to another connection element, for example a water pipe (18).
SE8400399A 1984-01-27 1984-01-27 PROCEDURE FOR MANUFACTURING A EASY PLASTIC PLASTIC WITH ATMINSTONE A COLLECTION SE451249B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8400399A SE451249B (en) 1984-01-27 1984-01-27 PROCEDURE FOR MANUFACTURING A EASY PLASTIC PLASTIC WITH ATMINSTONE A COLLECTION
IT67064/85A IT1182376B (en) 1984-01-27 1985-01-24 PROCEDURE FOR MANUFACTURING PLASTIC TUBES
ES539806A ES8606118A1 (en) 1984-01-27 1985-01-24 Method of manufacturing a plastic tube
PCT/SE1985/000030 WO1985003251A1 (en) 1984-01-27 1985-01-25 Method of manufacturing a plastic tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8400399A SE451249B (en) 1984-01-27 1984-01-27 PROCEDURE FOR MANUFACTURING A EASY PLASTIC PLASTIC WITH ATMINSTONE A COLLECTION

Publications (3)

Publication Number Publication Date
SE8400399D0 true SE8400399D0 (en) 1984-01-27
SE8400399L SE8400399L (en) 1985-07-28
SE451249B SE451249B (en) 1987-09-21

Family

ID=20354472

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8400399A SE451249B (en) 1984-01-27 1984-01-27 PROCEDURE FOR MANUFACTURING A EASY PLASTIC PLASTIC WITH ATMINSTONE A COLLECTION

Country Status (4)

Country Link
ES (1) ES8606118A1 (en)
IT (1) IT1182376B (en)
SE (1) SE451249B (en)
WO (1) WO1985003251A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069856A (en) * 1990-09-12 1991-12-03 Courtaulds Packaging Inc. Method of forming a headed thermoplastic tube
AT398725B (en) * 1992-10-21 1995-01-25 Schnallinger Helfried Ing METHOD FOR PRODUCING EXHAUST SLEEVES ON PLASTIC PIPES
US5861200A (en) * 1993-05-14 1999-01-19 Rowley; William Thin wall copper sleeve for all plastic conduit
US6557907B2 (en) 1993-05-14 2003-05-06 William W. Rowley Polyethylene connectors
US5622670A (en) * 1993-05-14 1997-04-22 Rowley; William Process for fabricating crosslinked polyethylene tubing ends
US6070916A (en) * 1993-05-14 2000-06-06 Rowley; William W. Crosslinked polyethylene tubing ends
US6860524B1 (en) 1993-05-14 2005-03-01 William W. Rowley Polyolefin connectors
US6485666B1 (en) 1998-03-11 2002-11-26 William W. Rowley Post extrusion profile processing
US6848719B2 (en) 2001-09-06 2005-02-01 William W. Rowley Bendable polymer-lined water heater connector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349700A (en) * 1960-07-15 1964-01-17 Raychem Corp Method and apparatus for producing plastic memory materials
CH527050A (en) * 1970-01-22 1972-08-31 Braas & Co Gmbh Plastic tubes with ends of different diameter
US3634924A (en) * 1970-04-20 1972-01-18 American Hospital Supply Corp Method of making multilumen balloon catheter
US3755524A (en) * 1970-10-26 1973-08-28 Climate Conditioning Corp Method for making pipe reducers
GB1373100A (en) * 1970-11-03 1974-11-06 Raychem Ltd Heat-recoverable members
FR2215123A5 (en) * 1972-12-22 1974-08-19 Pontigny Jacques
DE3024284C2 (en) * 1980-06-27 1982-11-25 Modest Serge'evič Moskva Akutin Device for expanding a plastic tube that shrinks when heated
DE3152022A1 (en) * 1981-01-26 1982-11-04 Wirsbo Pex, Zweigniederlassung der Platzer Schwedenbau GmbH, 6056 Heusenstamm Process for the production of plastic deformations, and pipe fittings

Also Published As

Publication number Publication date
IT8567064A0 (en) 1985-01-24
SE451249B (en) 1987-09-21
IT1182376B (en) 1987-10-05
SE8400399L (en) 1985-07-28
WO1985003251A1 (en) 1985-08-01
IT8567064A1 (en) 1986-07-24
ES8606118A1 (en) 1986-04-01
ES539806A0 (en) 1986-04-01

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