EP0356743A3 - Dornstange für Rohrwalzwerke - Google Patents

Dornstange für Rohrwalzwerke Download PDF

Info

Publication number
EP0356743A3
EP0356743A3 EP19890114240 EP89114240A EP0356743A3 EP 0356743 A3 EP0356743 A3 EP 0356743A3 EP 19890114240 EP19890114240 EP 19890114240 EP 89114240 A EP89114240 A EP 89114240A EP 0356743 A3 EP0356743 A3 EP 0356743A3
Authority
EP
European Patent Office
Prior art keywords
rolling mills
tube rolling
mandrel rod
annular gap
mandrel
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.)
Withdrawn
Application number
EP19890114240
Other languages
English (en)
French (fr)
Other versions
EP0356743A2 (de
Inventor
Francis Dr. Fischer
Jean-Paul Calmes
Alain Dr. Cron
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.)
Lonza AG
Original Assignee
Lonza 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 Lonza AG filed Critical Lonza AG
Publication of EP0356743A2 publication Critical patent/EP0356743A2/de
Publication of EP0356743A3 publication Critical patent/EP0356743A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Metal Rolling (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Die Dornstange (1) für Rohrwalzwerke, bei denen die Luppe (5) auf der Dornstange (1) gewalzt wird, besteht aus zwei ineinandergesteckten Rohren (2, 3). Der Ringspalt (4) zwischen den Rohren (2, 3) ist mit einem Duroplast ausgefüllt, dessen Ausdehnungskoeffizient so groß gewählt ist, daß der Du­ roplast auch bei Temperaturdifferenzen zwischen den Rohren (2, 3) den Ringspalt (4) vollständig ausfüllt.
EP19890114240 1988-08-31 1989-08-02 Dornstange für Rohrwalzwerke Withdrawn EP0356743A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3254/88 1988-08-31
CH3254/88A CH679462A5 (de) 1988-08-31 1988-08-31

Publications (2)

Publication Number Publication Date
EP0356743A2 EP0356743A2 (de) 1990-03-07
EP0356743A3 true EP0356743A3 (de) 1991-03-27

Family

ID=4251996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890114240 Withdrawn EP0356743A3 (de) 1988-08-31 1989-08-02 Dornstange für Rohrwalzwerke

Country Status (6)

Country Link
US (1) US4956988A (de)
EP (1) EP0356743A3 (de)
JP (1) JPH02104406A (de)
CN (1) CN1040747A (de)
BR (1) BR8904379A (de)
CH (1) CH679462A5 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186035A (en) * 1992-02-18 1993-02-16 General Electric Company Tube loading sleeve for pilger mill
US8161786B2 (en) * 2008-04-15 2012-04-24 Glen Stapleton Apparatus for feeding and turning tube products into a pilger mill machine
CN103801558B (zh) * 2014-01-27 2015-12-30 胜利油田康贝石油工程装备有限公司 石油用割缝管的梯型缝加工方法和设备
CN104138914B (zh) * 2014-07-29 2016-10-26 湖北新冶钢特种钢管有限公司 一种顶管机固定扣瓦

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989507A (en) * 1933-05-03 1935-01-29 Diescher Tube Mills Inc Rolling mill mandrel
US2025439A (en) * 1933-05-20 1935-12-24 Brownstein Benjamin Mandrel bar for continuous tube rolling mills
FR822733A (fr) * 1936-06-11 1938-01-06 Witkowitzer Bergb Gewerkschaft Procédé de laminage des tubes dit: au pas de pèlerin
FR1096089A (fr) * 1953-03-24 1955-06-08 Perfectionnements dans les mandrins de laminage à refroidissement intérieur et dans les dispositions d'adduction à ces mandrins du fluide réfrigérant
GB1162338A (en) * 1967-04-07 1969-08-27 Wiggin & Co Ltd Henry Extrusion Mandrel
US3918284A (en) * 1973-04-20 1975-11-11 Youngstown Sheet And Tube Co Seamless tube mill piercer mandrel and assembly
SU719720A1 (ru) * 1978-01-02 1980-03-10 Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов Составной дорн дл пилигримовой прокатки труб
JPS55103200A (en) * 1979-01-31 1980-08-07 Nippon Kokan Kk <Nkk> Manufacturing method of external bottom plate for double-walled low temperature tank
DE3429524A1 (de) * 1984-08-10 1986-02-20 Kocks Technik Gmbh & Co, 4010 Hilden Dornstange oder stopfen fuer eine walzstrasse zum herstellen nahtloser rohre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL130355C (de) * 1964-09-09
JPS5856648B2 (ja) * 1979-01-31 1983-12-16 新日本製鐵株式会社 管の連続圧延法
US4819471A (en) * 1986-10-31 1989-04-11 Westinghouse Electric Corp. Pilger die for tubing production

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989507A (en) * 1933-05-03 1935-01-29 Diescher Tube Mills Inc Rolling mill mandrel
US2025439A (en) * 1933-05-20 1935-12-24 Brownstein Benjamin Mandrel bar for continuous tube rolling mills
FR822733A (fr) * 1936-06-11 1938-01-06 Witkowitzer Bergb Gewerkschaft Procédé de laminage des tubes dit: au pas de pèlerin
FR1096089A (fr) * 1953-03-24 1955-06-08 Perfectionnements dans les mandrins de laminage à refroidissement intérieur et dans les dispositions d'adduction à ces mandrins du fluide réfrigérant
GB1162338A (en) * 1967-04-07 1969-08-27 Wiggin & Co Ltd Henry Extrusion Mandrel
US3918284A (en) * 1973-04-20 1975-11-11 Youngstown Sheet And Tube Co Seamless tube mill piercer mandrel and assembly
SU719720A1 (ru) * 1978-01-02 1980-03-10 Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов Составной дорн дл пилигримовой прокатки труб
JPS55103200A (en) * 1979-01-31 1980-08-07 Nippon Kokan Kk <Nkk> Manufacturing method of external bottom plate for double-walled low temperature tank
DE3429524A1 (de) * 1984-08-10 1986-02-20 Kocks Technik Gmbh & Co, 4010 Hilden Dornstange oder stopfen fuer eine walzstrasse zum herstellen nahtloser rohre

Also Published As

Publication number Publication date
US4956988A (en) 1990-09-18
JPH02104406A (ja) 1990-04-17
CN1040747A (zh) 1990-03-28
EP0356743A2 (de) 1990-03-07
BR8904379A (pt) 1990-04-17
CH679462A5 (de) 1992-02-28

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