JPS57199507A - Method of preventing internal defect in manufacture of pipe - Google Patents

Method of preventing internal defect in manufacture of pipe

Info

Publication number
JPS57199507A
JPS57199507A JP57055230A JP5523082A JPS57199507A JP S57199507 A JPS57199507 A JP S57199507A JP 57055230 A JP57055230 A JP 57055230A JP 5523082 A JP5523082 A JP 5523082A JP S57199507 A JPS57199507 A JP S57199507A
Authority
JP
Japan
Prior art keywords
manufacture
pipe
internal defect
preventing internal
preventing
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.)
Pending
Application number
JP57055230A
Other languages
English (en)
Japanese (ja)
Inventor
Barutokousukii Haintsu
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 JPS57199507A publication Critical patent/JPS57199507A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Lubricants (AREA)
JP57055230A 1981-05-29 1982-04-02 Method of preventing internal defect in manufacture of pipe Pending JPS57199507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813122046 DE3122046A1 (de) 1981-05-29 1981-05-29 Verfahren zur vermeidung von innenfehlern bei der herstellung von rohren

Publications (1)

Publication Number Publication Date
JPS57199507A true JPS57199507A (en) 1982-12-07

Family

ID=6133831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57055230A Pending JPS57199507A (en) 1981-05-29 1982-04-02 Method of preventing internal defect in manufacture of pipe

Country Status (7)

Country Link
JP (1) JPS57199507A (it)
BE (1) BE893345A (it)
BR (1) BR8203116A (it)
DE (1) DE3122046A1 (it)
FR (1) FR2506633A1 (it)
GB (1) GB2099738A (it)
IT (1) IT8220164A0 (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1160196B (it) * 1983-02-24 1987-03-04 Dalmine Spa Procedimento di disossidazione a caldo di tubi metallici semilavorati
DE3432288C2 (de) * 1984-09-01 1987-01-02 Kocks Technik Gmbh & Co, 4010 Hilden Anwendung von Inertgas beim Herstellen nahtloser Rohre
RU2133160C1 (ru) * 1998-04-16 1999-07-20 АООТ "Челябинский трубопрокатный завод" Способ производства биметаллических труб
FI114900B (fi) * 2000-12-20 2005-01-31 Outokumpu Oy Menetelmä ja laitteisto putkien valmistamiseksi
FI114901B (fi) * 2000-12-20 2005-01-31 Outokumpu Oy Menetelmä ja laitteisto putkien valmistamiseksi valssaamalla

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258947A (en) * 1963-12-19 1966-07-05 Schloemann Ag Processes for protecting products and tools during physical deformation of heavy metals and products so produced
JPS5537590B2 (it) * 1973-06-11 1980-09-29
DE2356985A1 (de) * 1973-11-15 1975-05-22 Kabel Metallwerke Ghh Verfahren zur herstellung nahtloser metallischer rohre

Also Published As

Publication number Publication date
DE3122046A1 (de) 1982-12-16
BR8203116A (pt) 1983-05-10
GB2099738A (en) 1982-12-15
IT8220164A0 (it) 1982-03-15
BE893345A (fr) 1982-09-16
FR2506633A1 (fr) 1982-12-03

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