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ES8201856A1 - Tube rolling - Google Patents

Tube rolling

Info

Publication number
ES8201856A1
ES8201856A1 ES500887A ES500887A ES8201856A1 ES 8201856 A1 ES8201856 A1 ES 8201856A1 ES 500887 A ES500887 A ES 500887A ES 500887 A ES500887 A ES 500887A ES 8201856 A1 ES8201856 A1 ES 8201856A1
Authority
ES
Spain
Prior art keywords
passes
blank
pass
rod
tube
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
ES500887A
Other languages
Spanish (es)
Other versions
ES500887A0 (en
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.)
Tubos Reunidos SA
Original Assignee
Tubos Reunidos 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 Tubos Reunidos SA filed Critical Tubos Reunidos SA
Publication of ES500887A0 publication Critical patent/ES500887A0/en
Publication of ES8201856A1 publication Critical patent/ES8201856A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
    • B21C1/26—Push-bench drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A small flange (4) is initially formed on the end of a tube to be rolled, the tube then being mounted on a mandrel rod 2 which is pushed through successive roll passes.The wall thickness of the blank (1) reduced in at least three passes, the reduction in the first two passes being 40-60% less than in the third pass. The rod (2) and blank (1) is moved relatively slowly into the first pass (6) minimizing the motive force to be sustained by the flange (4), and accelerated to the third pass (8). The wastage at the flanged end of the blank is further reduced by a part thereof being rolled onto the rod (2) in the reducing passes (6, 7, 8).
ES500887A 1980-06-09 1981-03-31 Tube rolling Expired ES8201856A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3021940A DE3021940C2 (en) 1980-06-09 1980-06-09 Method and system for the production of pipes on pipe push bench systems

Publications (2)

Publication Number Publication Date
ES500887A0 ES500887A0 (en) 1982-01-16
ES8201856A1 true ES8201856A1 (en) 1982-01-16

Family

ID=6104373

Family Applications (1)

Application Number Title Priority Date Filing Date
ES500887A Expired ES8201856A1 (en) 1980-06-09 1981-03-31 Tube rolling

Country Status (9)

Country Link
JP (1) JPS574347A (en)
KR (1) KR850001567B1 (en)
DE (1) DE3021940C2 (en)
ES (1) ES8201856A1 (en)
FR (1) FR2483809A1 (en)
GB (1) GB2077165B (en)
IT (1) IT1138349B (en)
MX (1) MX152303A (en)
ZA (1) ZA813868B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309797A1 (en) * 1983-03-18 1984-09-20 Kocks Technik Gmbh & Co, 4010 Hilden METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES
DE3632522A1 (en) * 1986-09-25 1988-03-31 Kocks Technik Method and installation for the production of tube blanks
DE3742155C2 (en) * 1987-12-10 1995-01-05 Mannesmann Ag Device for the production of seamless pipes
DE10333507B3 (en) * 2003-07-18 2004-09-23 V&M Deutschland Gmbh Process to manufacture a seamless steel pipe by punching hot metal block with a mandrel followed by passage through inclined nip mill
CN101920263B (en) * 2010-07-29 2012-06-06 沈阳东方钢铁有限公司 Method for producing medium and small aperture seamless steel tube by reducing and rolling hollow continuous cast tube blank
DE102015109092A1 (en) 2015-06-09 2016-12-15 Sms Group Gmbh Method for operating a seamless pipe system and seamless pipe system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081853B (en) * 1956-06-06 1960-05-19 Pompey Acieries Method for producing hollow bodies open on one side by punching a block and then stretching out the hole in a push bench
GB1092717A (en) * 1964-11-18 1967-11-29 Tube Mill Holding Sa Plant and process for producing seamless tubes using a push-bench, and seamless tubes produced by the process
DE1452255A1 (en) * 1965-01-16 1969-04-17 Demag Ag Method and device for the production of pipes of great length on pipe push bench systems
DE2812778C2 (en) * 1978-03-23 1983-03-17 Kocks Technik Gmbh & Co, 4010 Hilden Plant for the production of seamless tubes

Also Published As

Publication number Publication date
DE3021940A1 (en) 1981-12-17
FR2483809A1 (en) 1981-12-11
GB2077165B (en) 1983-09-01
ZA813868B (en) 1982-06-30
KR830005920A (en) 1983-09-14
IT8121809A0 (en) 1981-05-19
KR850001567B1 (en) 1985-10-19
GB2077165A (en) 1981-12-16
IT1138349B (en) 1986-09-17
JPS574347A (en) 1982-01-09
ES500887A0 (en) 1982-01-16
FR2483809B1 (en) 1984-11-23
MX152303A (en) 1985-06-25
DE3021940C2 (en) 1982-05-19

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