SE9401478D0 - Method and apparatus for the manufacture of pipes - Google Patents

Method and apparatus for the manufacture of pipes

Info

Publication number
SE9401478D0
SE9401478D0 SE9401478A SE9401478A SE9401478D0 SE 9401478 D0 SE9401478 D0 SE 9401478D0 SE 9401478 A SE9401478 A SE 9401478A SE 9401478 A SE9401478 A SE 9401478A SE 9401478 D0 SE9401478 D0 SE 9401478D0
Authority
SE
Sweden
Prior art keywords
cushion
pipe
section
diameter
half section
Prior art date
Application number
SE9401478A
Other languages
Swedish (sv)
Other versions
SE9401478L (en
SE508370C2 (en
Inventor
Sven Ekberg
Original Assignee
Permascand 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 Permascand Ab filed Critical Permascand Ab
Priority to SE9401478A priority Critical patent/SE508370C2/en
Publication of SE9401478D0 publication Critical patent/SE9401478D0/en
Priority to NO951643A priority patent/NO309258B1/en
Publication of SE9401478L publication Critical patent/SE9401478L/en
Publication of SE508370C2 publication Critical patent/SE508370C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/286—Making tube fittings for connecting pipes, e.g. U-pieces starting from sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The process involves placing a plate material over a cushion shaped pipe section and then pressing a stamp with the same shape as the cushion down against the plate to deform it. The pipe section is pressed down whilst it is in the cushion, at and along the line which will form the join with the other half section to give a whole pipe, so that a smaller pipe diameter than is desired in the end prod. is obtd. The pipe half section is removed from the cushion, following which its diameter recovers to the desired size.
SE9401478A 1994-04-29 1994-04-29 Process for mfg. of pipes from two curved half sections SE508370C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9401478A SE508370C2 (en) 1994-04-29 1994-04-29 Process for mfg. of pipes from two curved half sections
NO951643A NO309258B1 (en) 1994-04-29 1995-04-28 Method and apparatus for making pipe bends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401478A SE508370C2 (en) 1994-04-29 1994-04-29 Process for mfg. of pipes from two curved half sections

Publications (3)

Publication Number Publication Date
SE9401478D0 true SE9401478D0 (en) 1994-04-29
SE9401478L SE9401478L (en) 1995-10-30
SE508370C2 SE508370C2 (en) 1998-09-28

Family

ID=20393836

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401478A SE508370C2 (en) 1994-04-29 1994-04-29 Process for mfg. of pipes from two curved half sections

Country Status (2)

Country Link
NO (1) NO309258B1 (en)
SE (1) SE508370C2 (en)

Also Published As

Publication number Publication date
NO951643D0 (en) 1995-04-28
NO951643L (en) 1995-10-30
SE9401478L (en) 1995-10-30
NO309258B1 (en) 2001-01-08
SE508370C2 (en) 1998-09-28

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