GB1341853A - Process for producing helically wound welded seam pipe - Google Patents

Process for producing helically wound welded seam pipe

Info

Publication number
GB1341853A
GB1341853A GB1341853DA GB1341853A GB 1341853 A GB1341853 A GB 1341853A GB 1341853D A GB1341853D A GB 1341853DA GB 1341853 A GB1341853 A GB 1341853A
Authority
GB
United Kingdom
Prior art keywords
welding
tack
pipe
skelp
helically wound
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
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.)
Steel Company of Canada Ltd
Original Assignee
Steel Company of Canada 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 Steel Company of Canada Ltd filed Critical Steel Company of Canada Ltd
Publication of GB1341853A publication Critical patent/GB1341853A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
    • B23K9/0325—Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams
    • 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
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/122—Making tubes or metal hoses with helically arranged seams with welded or soldered seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)

Abstract

1341853 Helically wound tube; welding by fusion STEEL CO OF CANADA Ltd 6 Jan 1972 [8 Jan 1971] 983/71 Headings B3A and B3R A process for producing helically wound pipe comprises continuously delivering skelp to a rolling station, continuously rolling the skelp into helically wound pipe, continuously tackwelding the edges of said skelp together by a gasshielded arc-welding technique, removing the tack-welded pipe to a submerged-arc welding station and converting the tack-weld to a continuous weld. The edges of the skelp are preferably chamfered, forming either a single or double chamfer of about 30 degrees, to provide mating edges prior to the tack-welding. One or two wire MIG (e.g. with argon), MAG (with CO 2 ) or TIG welding or any gas shielded arcwelding technique may be used in which the gas is either an inert gas or CO 2 , or a combination of these, and which employs a consumable or non-consumable electrode. In the particular embodiment a MIG head 18 has a wire feed 20, gas shielding lines 22, water cooling pipe 24, and support 25. The gap between adjacent edges is controlled by a mechanism 26 such that tack-welding occurs at the lowermost point of the pipe 12. Lengths of tack-welded pipe can be severed from one another by conventional methods, e.g. sawing, gas cutting.
GB1341853D 1971-01-08 1971-01-08 Process for producing helically wound welded seam pipe Expired GB1341853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB98371 1971-01-08

Publications (1)

Publication Number Publication Date
GB1341853A true GB1341853A (en) 1973-12-25

Family

ID=9713962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1341853D Expired GB1341853A (en) 1971-01-08 1971-01-08 Process for producing helically wound welded seam pipe

Country Status (2)

Country Link
CA (1) CA919257A (en)
GB (1) GB1341853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400987A1 (en) * 1977-06-30 1979-03-23 Nippon Kokan Kk MIG spiral seam welding of steel pipe - formed by bending steel plate and using internal and external welding at high speed
CN109317983A (en) * 2018-11-28 2019-02-12 宝鸡石油钢管有限责任公司 Skid spiral submerged welded pipe unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520610C3 (en) * 1975-05-09 1984-10-25 Blohm + Voss Ag, 2000 Hamburg Method and device for the production of screw sutures

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400987A1 (en) * 1977-06-30 1979-03-23 Nippon Kokan Kk MIG spiral seam welding of steel pipe - formed by bending steel plate and using internal and external welding at high speed
CN109317983A (en) * 2018-11-28 2019-02-12 宝鸡石油钢管有限责任公司 Skid spiral submerged welded pipe unit
CN109317983B (en) * 2018-11-28 2024-05-14 中国石油天然气集团有限公司 Skid-mounted spiral submerged arc welded pipe unit

Also Published As

Publication number Publication date
CA919257A (en) 1973-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years