EP0950441A3 - Method of manufacturing long dual layer metal pipe - Google Patents

Method of manufacturing long dual layer metal pipe Download PDF

Info

Publication number
EP0950441A3
EP0950441A3 EP99106946A EP99106946A EP0950441A3 EP 0950441 A3 EP0950441 A3 EP 0950441A3 EP 99106946 A EP99106946 A EP 99106946A EP 99106946 A EP99106946 A EP 99106946A EP 0950441 A3 EP0950441 A3 EP 0950441A3
Authority
EP
European Patent Office
Prior art keywords
joined body
metal pipes
dual layer
metal pipe
layer metal
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.)
Withdrawn
Application number
EP99106946A
Other languages
German (de)
French (fr)
Other versions
EP0950441A2 (en
Inventor
Takao Yagoto Sanhaitsu 501 Shimizu
Hirotsugu Horio
Noboru Yamamoto
Shigeyuki Inagaki
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.)
Daido Steel Co Ltd
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 EP0950441A2 publication Critical patent/EP0950441A2/en
Publication of EP0950441A3 publication Critical patent/EP0950441A3/en
Withdrawn legal-status Critical Current

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

The present invention relates to a method for manufacturing a long dual layer metal pipe (50) which comprises the following steps. Namely, a joined body (30) of inner metal pipes is inserted into a joined body (10) of outer metal pipes. The joined body (30) of inner metal pipes has an outer diameter smaller than an inner diameter of the joined body (10) of outer metal pipes. The joined body (30) of inner metal pipes has one or more joining portions. The joined body of outer metal pipes has one or more joining or clamping portions. Then the joined body of inner metal pipes is expanded to manufacture a dual layer metal pipe (50).
EP99106946A 1998-04-08 1999-04-08 Method of manufacturing long dual layer metal pipe Withdrawn EP0950441A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9552998 1998-04-08
JP9552998A JPH11290939A (en) 1998-04-08 1998-04-08 Manufacture of long double metallic tube

Publications (2)

Publication Number Publication Date
EP0950441A2 EP0950441A2 (en) 1999-10-20
EP0950441A3 true EP0950441A3 (en) 2001-05-02

Family

ID=14140092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106946A Withdrawn EP0950441A3 (en) 1998-04-08 1999-04-08 Method of manufacturing long dual layer metal pipe

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
ES2308586T3 (en) 2004-12-21 2008-12-01 Bergrohr Gmbh Siegen PROCEDURE FOR THE MANUFACTURE OF A MULTI-PIPE TUBE.
US20090266509A1 (en) * 2005-09-16 2009-10-29 Patrick Pussell Heat Exchanger Element and a Water Heater and Heat Pump Utilizing 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

Citations (4)

* 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
EP0089379A1 (en) * 1982-03-17 1983-09-28 Kawasaki Jukogyo Kabushiki Kaisha 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0813428A (en) 1994-06-22 1996-01-16 Itsutsu:Kk Embedded type led unit and construction method therefor

Patent Citations (4)

* 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
EP0089379A1 (en) * 1982-03-17 1983-09-28 Kawasaki Jukogyo Kabushiki Kaisha 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 002 (M - 266) 7 January 1984 (1984-01-07) *

Also Published As

Publication number Publication date
JPH11290939A (en) 1999-10-26
NO991665L (en) 1999-10-11
NO991665D0 (en) 1999-04-08
EP0950441A2 (en) 1999-10-20
CA2268697A1 (en) 1999-10-08

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