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GB831285A - Process for the continuous production of longitudinally welded steel tubes - Google Patents

Process for the continuous production of longitudinally welded steel tubes

Info

Publication number
GB831285A
GB831285A GB12282/57A GB1228257A GB831285A GB 831285 A GB831285 A GB 831285A GB 12282/57 A GB12282/57 A GB 12282/57A GB 1228257 A GB1228257 A GB 1228257A GB 831285 A GB831285 A GB 831285A
Authority
GB
United Kingdom
Prior art keywords
strip
tube
heating
mill
welding
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
GB12282/57A
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.)
Phoenix Rheinrohr AG
Original Assignee
Phoenix Rheinrohr AG
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 Phoenix Rheinrohr AG filed Critical Phoenix Rheinrohr AG
Publication of GB831285A publication Critical patent/GB831285A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/08Making tubes with welded or soldered seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/08Making tubes with welded or soldered seams
    • B21C37/083Supply, or operations combined with supply, of strip material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

831,285. Making tubes; working at specified temperatures. PHOENIX-RHEINROHR AKTIENGESELLSCHAFT VEREINIGTE HUTTENUND ROHRENWERKE. April 15, 1957 [April 13, 1956], No. 12282/57. Classes 83 (2) and 83 (4). A method of making metal tubes comprises welding together a plurality of slabs, heating the bar so formed to 1000‹ C. in a continuous furnace, rolling the bar to reduce its thickness to between one tenth and one twentieth, heating the edges of the strip so formed to welding temperature, deforming and welding the strip to form a tube and heating the tube prior to stretching it in a mill. Metal slabs 1, 300 mm. wide to 50 mm. thick and 10,000 mm. long, the thickness being 20-50 times the wall thickness of the tube to be made, are welded together to form a continuous line 2 which is heated in a continuous furnace 3 to 1000‹ C. After descaling by water pressure at 4, the slab is reduced in a planetary rolling mill 5 to a strip 300 mm. wide and 3 to 5 mm. thick. The strip produced is then polished and may be trimmed at 6 after which its marginal edges are inductively heated to welding temperature at 7. Rollers 8 then form the strip 21 while rollers 9 weld the seam to complete a tube 2<SP>11</SP> which is then reheated to 950-1000‹ C. prior to stretching in a mill 11.
GB12282/57A 1956-04-13 1957-04-15 Process for the continuous production of longitudinally welded steel tubes Expired GB831285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP16057D DE1089713B (en) 1956-04-13 1956-04-13 Process for the production of an endless belt in the continuous production of welded pipes by welding pre-parts together

Publications (1)

Publication Number Publication Date
GB831285A true GB831285A (en) 1960-03-30

Family

ID=7365861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12282/57A Expired GB831285A (en) 1956-04-13 1957-04-15 Process for the continuous production of longitudinally welded steel tubes

Country Status (2)

Country Link
DE (1) DE1089713B (en)
GB (1) GB831285A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522464A (en) * 1978-08-07 1980-02-18 Hitachi Ltd Continuous rolling method of slab

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT54839B (en) * 1909-11-29 1912-08-10 Elias Elkan Ries Method and device for the production of welded pipes.
CH177660A (en) * 1932-11-18 1935-06-15 Holt Broadfield Ward Process and device for the production of welded tubes.
NL115227C (en) * 1939-06-18
DE896332C (en) * 1940-03-12 1953-11-12 Hoerder Huettenunion Ag Process for the production of high pressure hollow bodies, in which band-shaped materials in one or more layers are helically wound onto a core body
DE918021C (en) * 1940-04-19 1954-09-16 E H Siegfried Junghans Dr Ing Process and plant for the production of strip and sheet metal
AT183725B (en) * 1949-02-18 1955-11-10 Tadeusz Sendzimir Rolling process in a planetary rolling mill and a dedicated rolling mill

Also Published As

Publication number Publication date
DE1089713B (en) 1960-09-29

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