GB1256772A - Improvements in or relating to a process of manufacturing tubes - Google Patents

Improvements in or relating to a process of manufacturing tubes

Info

Publication number
GB1256772A
GB1256772A GB1256772DA GB1256772A GB 1256772 A GB1256772 A GB 1256772A GB 1256772D A GB1256772D A GB 1256772DA GB 1256772 A GB1256772 A GB 1256772A
Authority
GB
United Kingdom
Prior art keywords
edges
strip
tube
tubes
vallourec
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
Inventor
Jean Gontard
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.)
Elphiac SA
Vallourec SA
Original Assignee
Elphiac SA
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 Elphiac SA, Vallourec SA filed Critical Elphiac SA
Publication of GB1256772A publication Critical patent/GB1256772A/en
Expired 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K5/00—Gas flame welding
    • B23K5/02—Seam welding
    • B23K5/06—Welding longitudinal seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

1,256,772. Making tubes; skelping; welding by pressure. VALLOUREC (USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES) ELPHIAC S.A. 14 Aug., 1969 [16 Aug., 1968], No. 40636/69. Headings B3A, B3E and B3R. In a method and apparatus for producing a welded tube from metal strip the strip is preheated in a furnace, formed into a tube with the edges of the strip adjacent each other with a small gap between them, the edges are superheated, preferably by electric induction heating, a gas is blown on to the edges and the tube welded by bringing the edges together by means of forming rollers. The gas may be oxygen, air or a mixture thereof, or steam. The heating in the furnace is preferably to 900‹ to 1300‹ C. with superheating of from 50‹ to 450‹ C. in the case of steel strip.
GB1256772D 1968-08-16 1969-08-14 Improvements in or relating to a process of manufacturing tubes Expired GB1256772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR163292 1968-08-16

Publications (1)

Publication Number Publication Date
GB1256772A true GB1256772A (en) 1971-12-15

Family

ID=8653824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1256772D Expired GB1256772A (en) 1968-08-16 1969-08-14 Improvements in or relating to a process of manufacturing tubes

Country Status (5)

Country Link
AT (1) AT302773B (en)
BE (1) BE737390A (en)
CA (1) CA886856A (en)
FR (1) FR1590672A (en)
GB (1) GB1256772A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2638476C1 (en) * 2016-11-08 2017-12-13 Публичное Акционерное Общество "Корпорация Всмпо-Ависма" Method for manufacturing welded straight-seam pipes of titanium alloys

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032222C2 (en) * 1979-09-28 1987-08-20 Sumitomo Kinzoku Kogyo K.K., Osaka Device for the continuous production of butt-welded pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2638476C1 (en) * 2016-11-08 2017-12-13 Публичное Акционерное Общество "Корпорация Всмпо-Ависма" Method for manufacturing welded straight-seam pipes of titanium alloys

Also Published As

Publication number Publication date
CA886856A (en) 1971-11-30
AT302773B (en) 1972-10-25
FR1590672A (en) 1970-04-20
DE1941461A1 (en) 1970-02-19
DE1941461B2 (en) 1972-07-20
BE737390A (en) 1970-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees