JPS53125954A - Method of producing thick pipes - Google Patents

Method of producing thick pipes

Info

Publication number
JPS53125954A
JPS53125954A JP4045377A JP4045377A JPS53125954A JP S53125954 A JPS53125954 A JP S53125954A JP 4045377 A JP4045377 A JP 4045377A JP 4045377 A JP4045377 A JP 4045377A JP S53125954 A JPS53125954 A JP S53125954A
Authority
JP
Japan
Prior art keywords
producing thick
thick pipes
press
proximity
pressing
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
JP4045377A
Other languages
Japanese (ja)
Inventor
Tadaaki Taira
Toshiro Ishihara
Junichiro Takehara
Hiroyoshi Matsubara
Saburou Kageshi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP4045377A priority Critical patent/JPS53125954A/en
Publication of JPS53125954A publication Critical patent/JPS53125954A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To accomplish welding without formation of any sharp point in the proximity of the groove, preventing crack in the welded zone while avoiding increase in press powder during the operation of O press for production of large diameter thick steel pipes by providing shrinking operation after 0 pressing.
COPYRIGHT: (C)1978,JPO&Japio
JP4045377A 1977-04-11 1977-04-11 Method of producing thick pipes Pending JPS53125954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4045377A JPS53125954A (en) 1977-04-11 1977-04-11 Method of producing thick pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4045377A JPS53125954A (en) 1977-04-11 1977-04-11 Method of producing thick pipes

Publications (1)

Publication Number Publication Date
JPS53125954A true JPS53125954A (en) 1978-11-02

Family

ID=12581048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4045377A Pending JPS53125954A (en) 1977-04-11 1977-04-11 Method of producing thick pipes

Country Status (1)

Country Link
JP (1) JPS53125954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121823A (en) * 1981-01-20 1982-07-29 Toshiba Corp Manufacture of metallic cylindrical member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121823A (en) * 1981-01-20 1982-07-29 Toshiba Corp Manufacture of metallic cylindrical member
JPS6247088B2 (en) * 1981-01-20 1987-10-06 Tokyo Shibaura Electric Co

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