JPS549146A - Method of producing forge-welded pipes - Google Patents

Method of producing forge-welded pipes

Info

Publication number
JPS549146A
JPS549146A JP7508477A JP7508477A JPS549146A JP S549146 A JPS549146 A JP S549146A JP 7508477 A JP7508477 A JP 7508477A JP 7508477 A JP7508477 A JP 7508477A JP S549146 A JPS549146 A JP S549146A
Authority
JP
Japan
Prior art keywords
forge
welded pipes
producing
welded
welding
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
JP7508477A
Other languages
Japanese (ja)
Other versions
JPS5617968B2 (en
Inventor
Mochimichi Onishi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP7508477A priority Critical patent/JPS549146A/en
Publication of JPS549146A publication Critical patent/JPS549146A/en
Publication of JPS5617968B2 publication Critical patent/JPS5617968B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE: To accomplish noticeable conservation of fuel and improve workability by a forge-welding with a forge-welding roll after a hoop is so formed that the section is shaped into a rough circle and the portion to be welded is heated locally with a tunnel heating furnace.
COPYRIGHT: (C)1979,JPO&Japio
JP7508477A 1977-06-23 1977-06-23 Method of producing forge-welded pipes Granted JPS549146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7508477A JPS549146A (en) 1977-06-23 1977-06-23 Method of producing forge-welded pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7508477A JPS549146A (en) 1977-06-23 1977-06-23 Method of producing forge-welded pipes

Publications (2)

Publication Number Publication Date
JPS549146A true JPS549146A (en) 1979-01-23
JPS5617968B2 JPS5617968B2 (en) 1981-04-25

Family

ID=13565948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7508477A Granted JPS549146A (en) 1977-06-23 1977-06-23 Method of producing forge-welded pipes

Country Status (1)

Country Link
JP (1) JPS549146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589714A (en) * 1981-07-10 1983-01-20 Sumitomo Metal Ind Ltd Line of steel pipe manufacturing installation from steel band as blank material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115159A (en) * 1974-02-22 1975-09-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115159A (en) * 1974-02-22 1975-09-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589714A (en) * 1981-07-10 1983-01-20 Sumitomo Metal Ind Ltd Line of steel pipe manufacturing installation from steel band as blank material

Also Published As

Publication number Publication date
JPS5617968B2 (en) 1981-04-25

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