JPH0422646B2 - - Google Patents

Info

Publication number
JPH0422646B2
JPH0422646B2 JP5139187A JP5139187A JPH0422646B2 JP H0422646 B2 JPH0422646 B2 JP H0422646B2 JP 5139187 A JP5139187 A JP 5139187A JP 5139187 A JP5139187 A JP 5139187A JP H0422646 B2 JPH0422646 B2 JP H0422646B2
Authority
JP
Japan
Prior art keywords
welding
twisting
roll
welded
weld line
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.)
Expired
Application number
JP5139187A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63220921A (ja
Inventor
Daigo Sumimoto
Yukihisa Kuryama
Yoshio Ishii
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP5139187A priority Critical patent/JPS63220921A/ja
Publication of JPS63220921A publication Critical patent/JPS63220921A/ja
Publication of JPH0422646B2 publication Critical patent/JPH0422646B2/ja
Granted legal-status Critical Current

Links

JP5139187A 1987-03-06 1987-03-06 溶接管成形における捩れ防止方法 Granted JPS63220921A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5139187A JPS63220921A (ja) 1987-03-06 1987-03-06 溶接管成形における捩れ防止方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5139187A JPS63220921A (ja) 1987-03-06 1987-03-06 溶接管成形における捩れ防止方法

Publications (2)

Publication Number Publication Date
JPS63220921A JPS63220921A (ja) 1988-09-14
JPH0422646B2 true JPH0422646B2 (en]) 1992-04-20

Family

ID=12885640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5139187A Granted JPS63220921A (ja) 1987-03-06 1987-03-06 溶接管成形における捩れ防止方法

Country Status (1)

Country Link
JP (1) JPS63220921A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103846614B (zh) * 2012-11-28 2016-07-06 常州盛德无缝钢管有限公司 一种防止nd钢表面热裂的低温穿孔工艺

Also Published As

Publication number Publication date
JPS63220921A (ja) 1988-09-14

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