NO991665L - Method of making a long, two-layer metal tube - Google Patents

Method of making a long, two-layer metal tube

Info

Publication number
NO991665L
NO991665L NO991665A NO991665A NO991665L NO 991665 L NO991665 L NO 991665L NO 991665 A NO991665 A NO 991665A NO 991665 A NO991665 A NO 991665A NO 991665 L NO991665 L NO 991665L
Authority
NO
Norway
Prior art keywords
joined body
long
layer metal
metal tube
making
Prior art date
Application number
NO991665A
Other languages
Norwegian (no)
Other versions
NO991665D0 (en
Inventor
Takao Shimizu
Hirotsugu Horio
Noboru Yamamoto
Shigeyuki Inagaki
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Publication of NO991665D0 publication Critical patent/NO991665D0/en
Publication of NO991665L publication Critical patent/NO991665L/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
    • B21C37/154—Making multi-wall tubes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Arc Welding In General (AREA)

Abstract

Et langt, tolags metallrør fremstilles på den følgende måte: Et sammenføyet legeme (30) av innermetallrør innføres i et sammenføyet legeme (10) av yttermetallrør. Det sammenføyde legemet (30) av innermetallrør har mindre ytterdiameter enn innerdiameteren til det sammenføyde legemet (10) av yttermetallrør. Det sammenføyde legemet (30) av innermetallrør har ett eller flere sammenføyningspartier (33N). Det sammenføyde legemet (10) av yttermetallrør har ett eller flere sammenføynings- eller fastklemmingspartier (16N). Deretter ekspanderes det sammenføyde legemet (10) av innermetallrør for å fremstille et tolags metallrør.A long, two-layer metal pipe is made as follows: A joined body (30) of inner metal pipe is inserted into a joined body (10) of outer metal pipe. The joined body (30) of inner metal pipes has a smaller outer diameter than the inner diameter of the joined body (10) of outer metal pipe. The joined body (30) of inner metal tubes has one or more joining portions (33N). The joined body (10) of outer metal tubing has one or more joining or clamping portions (16N). Then, the joined body (10) is expanded by inner metal tubing to produce a two-layer metal tube.

NO991665A 1998-04-08 1999-04-08 Method of making a long, two-layer metal tube NO991665L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9552998A JPH11290939A (en) 1998-04-08 1998-04-08 Manufacture of long double metallic tube

Publications (2)

Publication Number Publication Date
NO991665D0 NO991665D0 (en) 1999-04-08
NO991665L true NO991665L (en) 1999-10-11

Family

ID=14140092

Family Applications (1)

Application Number Title Priority Date Filing Date
NO991665A NO991665L (en) 1998-04-08 1999-04-08 Method of making a long, two-layer metal tube

Country Status (4)

Country Link
EP (1) EP0950441A3 (en)
JP (1) JPH11290939A (en)
CA (1) CA2268697A1 (en)
NO (1) NO991665L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6791051B2 (en) * 2002-08-22 2004-09-14 Delphi Technologies, Inc. Method for metallurgically attaching a tube to a member
DK1827727T3 (en) 2004-12-21 2008-09-15 Bergrohr Gmbh Siegen Process for producing a multilayer tube
WO2007030856A1 (en) * 2005-09-16 2007-03-22 Dux Manufacturing Limited A heat exchanger element and a water heater and heat pump utilising same
KR101298702B1 (en) * 2011-04-27 2013-08-21 현대제철 주식회사 Dual pipe and method for forming the same
CN104043675A (en) * 2014-06-18 2014-09-17 谢光玉 Preparation method of aluminium alloy/stainless steel bimetal composite tube
KR101703089B1 (en) * 2016-02-02 2017-02-06 김성식 Method of manufacturing a metal pipe having an inner protective tube
KR101870573B1 (en) * 2017-06-16 2018-06-22 방만혁 Composite pipe consisting of stainless steel pipe, steel pipe and anti-corrosion layer and, manufacturing methods for the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827437A (en) * 1929-12-07 1931-10-13 Alfred H Pascoe Method of making reenforced drill pipe casings
FR1072416A (en) * 1951-11-16 1954-09-13 Foster Wheeler Ltd Process for the manufacture of composite tubes and products obtained
DE3278625D1 (en) * 1982-03-17 1988-07-14 Kawasaki Heavy Ind Ltd Method of producing multiple-wall, composite tubular structures
JPS58167094A (en) * 1982-03-29 1983-10-03 Japan Steel Works Ltd:The Method for welding joint of stainless steel clad steel
JPH0813428A (en) 1994-06-22 1996-01-16 Itsutsu:Kk Embedded type led unit and construction method therefor

Also Published As

Publication number Publication date
JPH11290939A (en) 1999-10-26
EP0950441A2 (en) 1999-10-20
NO991665D0 (en) 1999-04-08
EP0950441A3 (en) 2001-05-02
CA2268697A1 (en) 1999-10-08

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application