GB704406A - Improvements relating to the manufacture of seam-welded pipe or tube - Google Patents

Improvements relating to the manufacture of seam-welded pipe or tube

Info

Publication number
GB704406A
GB704406A GB17751/51A GB1775151A GB704406A GB 704406 A GB704406 A GB 704406A GB 17751/51 A GB17751/51 A GB 17751/51A GB 1775151 A GB1775151 A GB 1775151A GB 704406 A GB704406 A GB 704406A
Authority
GB
United Kingdom
Prior art keywords
strip
heated
temperature
welding
edges
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
GB17751/51A
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.)
Ohio Crankshaft Co
Original Assignee
Ohio Crankshaft Co
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 Ohio Crankshaft Co filed Critical Ohio Crankshaft Co
Publication of GB704406A publication Critical patent/GB704406A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23K13/00—Welding by high-frequency current heating
    • B23K13/01—Welding by high-frequency current heating by induction heating
    • B23K13/02—Seam welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

704,406. Making tubes. OHIO CRANKSHAFT CO. July 26, 1951 [July 29, 1950], No. 17751/51. Classes 83 (2) and 83 (4). [Also in Group XI] Welding.-A method of manufacturing seamwelded metal pipe from metal strip comprises pre-heating the strip to a temperature sufficient for hot-forming it into a tube but insufficient for welding, electrically heating the longitudinal edges of the pre-heated strip to the welding temperature and then pressure welding the edges to form a longitudinal seam. A metal strip 10 of rectangular cross-section is fed into a preheating furnace 13 by pairs of driving rollers 11 and 12 where it is heated to the forming temperature, e.g. 1500‹ F. for low carbon steel. A photo-electric cell 14 regulates the furnace temperature and the speed of the strip. The pre-heated strip then passes into a high frequency induction type heater 15 (see Group XI) which heats the two longitudinal edges of the strip to welding temperature, e.g. 2400‹ F. for low carbon steel. The heater may be water cooled to reduce its working temperature and the power output of the heater is controlled by a photo-electric cell 20. The strip then passes through a tube forming machine 21 which rolls or shapes the pre-heated strip to the desired tubular shape and presses together the highly heated opposed longitudinal edges to form a welded seam. The pre-heated strips may be formed into a tubular shape with its edges in closely spaced opposed relationship before the edges are heated to the welding temperature and finally welded together. Specification 704,389 is referred to.
GB17751/51A 1950-07-29 1951-07-26 Improvements relating to the manufacture of seam-welded pipe or tube Expired GB704406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US704406XA 1950-07-29 1950-07-29

Publications (1)

Publication Number Publication Date
GB704406A true GB704406A (en) 1954-02-24

Family

ID=22095297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17751/51A Expired GB704406A (en) 1950-07-29 1951-07-26 Improvements relating to the manufacture of seam-welded pipe or tube

Country Status (1)

Country Link
GB (1) GB704406A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466306A1 (en) * 1979-09-28 1981-04-10 Sumitomo Metal Ind DEVICE FOR THE CONTINUOUS PRODUCTION OF TUBES BY END-TO-END WELDING
GB2452706A (en) * 2007-09-11 2009-03-18 Acergy Uk Ltd Induction pre-heating apparatus and use thereof in welding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466306A1 (en) * 1979-09-28 1981-04-10 Sumitomo Metal Ind DEVICE FOR THE CONTINUOUS PRODUCTION OF TUBES BY END-TO-END WELDING
GB2452706A (en) * 2007-09-11 2009-03-18 Acergy Uk Ltd Induction pre-heating apparatus and use thereof in welding

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