EP0272204A3 - Method for controlling the thickness of tubewall - Google Patents

Method for controlling the thickness of tubewall Download PDF

Info

Publication number
EP0272204A3
EP0272204A3 EP87730165A EP87730165A EP0272204A3 EP 0272204 A3 EP0272204 A3 EP 0272204A3 EP 87730165 A EP87730165 A EP 87730165A EP 87730165 A EP87730165 A EP 87730165A EP 0272204 A3 EP0272204 A3 EP 0272204A3
Authority
EP
European Patent Office
Prior art keywords
tubewall
thickness
controlling
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.)
Granted
Application number
EP87730165A
Other languages
German (de)
Other versions
EP0272204A2 (en
EP0272204B1 (en
Inventor
Hans Joachim Dr.-Ing. Pehle
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0272204A2 publication Critical patent/EP0272204A2/en
Publication of EP0272204A3 publication Critical patent/EP0272204A3/en
Application granted granted Critical
Publication of EP0272204B1 publication Critical patent/EP0272204B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
EP87730165A 1986-12-18 1987-12-15 Method for controlling the thickness of tubewall Expired - Lifetime EP0272204B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643659 1986-12-18
DE19863643659 DE3643659A1 (en) 1986-12-18 1986-12-18 METHOD FOR CONTROLLING THE PIPE WALL THICKNESS

Publications (3)

Publication Number Publication Date
EP0272204A2 EP0272204A2 (en) 1988-06-22
EP0272204A3 true EP0272204A3 (en) 1988-11-09
EP0272204B1 EP0272204B1 (en) 1992-07-15

Family

ID=6316703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730165A Expired - Lifetime EP0272204B1 (en) 1986-12-18 1987-12-15 Method for controlling the thickness of tubewall

Country Status (2)

Country Link
EP (1) EP0272204B1 (en)
DE (2) DE3643659A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201717C1 (en) * 2002-01-18 2003-04-10 Sms Meer Gmbh Pipe rolling stand in which at least two rollers work together, takes the measured pipe wall thickness at different peripheral positions to control the roller rotary speeds independently
DE102017211481A1 (en) 2017-07-05 2019-01-10 Sms Group Gmbh Device for controlling a draft-reducing mill
DE102017220750A1 (en) 2017-11-21 2019-05-23 Sms Group Gmbh Device for controlling a draft-reducing mill
DE102018217378B3 (en) * 2018-10-11 2020-03-26 Sms Group Gmbh Wall thickness control when reducing pipe stretch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1158754A (en) * 1967-03-21 1969-07-16 Kocks Wermelskirchen Gmbh Process for Stretch-Reducing Tubes
US3496745A (en) * 1967-05-01 1970-02-24 Kocks Gmbh Friedrich Process for stretch-reducing tubes
DE1427922B2 (en) * 1965-04-07 1973-08-09 Fa. Friedrich Kocks, 4000 Düsseldorf ADJUSTMENT DEVICE FOR REGULATING THE OVERALL DRAW DEGREE WHEN DRAW-REDUCING PIPES
DE2947233A1 (en) * 1979-11-23 1981-05-27 Kocks Technik GmbH & Co, 4000 Düsseldorf ADJUSTMENT DEVICE FOR REGULATING THE TOTAL DEGREE OF DEGREE OF A DRAW REDUCTION MILL

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564882A (en) * 1968-04-22 1971-02-23 Allegheny Ludlum Steel Rolling mill control system
JPS60199514A (en) * 1984-03-22 1985-10-09 Sumitomo Metal Ind Ltd Draw rolling method of pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1427922B2 (en) * 1965-04-07 1973-08-09 Fa. Friedrich Kocks, 4000 Düsseldorf ADJUSTMENT DEVICE FOR REGULATING THE OVERALL DRAW DEGREE WHEN DRAW-REDUCING PIPES
GB1158754A (en) * 1967-03-21 1969-07-16 Kocks Wermelskirchen Gmbh Process for Stretch-Reducing Tubes
US3496745A (en) * 1967-05-01 1970-02-24 Kocks Gmbh Friedrich Process for stretch-reducing tubes
DE2947233A1 (en) * 1979-11-23 1981-05-27 Kocks Technik GmbH & Co, 4000 Düsseldorf ADJUSTMENT DEVICE FOR REGULATING THE TOTAL DEGREE OF DEGREE OF A DRAW REDUCTION MILL

Also Published As

Publication number Publication date
DE3643659C2 (en) 1990-05-17
EP0272204A2 (en) 1988-06-22
DE3643659A1 (en) 1988-07-07
DE3780429D1 (en) 1992-08-20
EP0272204B1 (en) 1992-07-15

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