JPS5568121A - Manufacture of large size square steel pipe - Google Patents

Manufacture of large size square steel pipe

Info

Publication number
JPS5568121A
JPS5568121A JP14268178A JP14268178A JPS5568121A JP S5568121 A JPS5568121 A JP S5568121A JP 14268178 A JP14268178 A JP 14268178A JP 14268178 A JP14268178 A JP 14268178A JP S5568121 A JPS5568121 A JP S5568121A
Authority
JP
Japan
Prior art keywords
corners
steel pipe
square steel
large size
degrees
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
JP14268178A
Other languages
English (en)
Inventor
Hiroshi Nakajima
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.)
Nakajima KK
Original Assignee
Nakajima KK
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 Nakajima KK filed Critical Nakajima KK
Priority to JP14268178A priority Critical patent/JPS5568121A/ja
Priority to US06/093,336 priority patent/US4301348A/en
Publication of JPS5568121A publication Critical patent/JPS5568121A/ja
Pending legal-status Critical Current

Links

JP14268178A 1978-11-17 1978-11-17 Manufacture of large size square steel pipe Pending JPS5568121A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14268178A JPS5568121A (en) 1978-11-17 1978-11-17 Manufacture of large size square steel pipe
US06/093,336 US4301348A (en) 1978-11-17 1979-11-13 Process for producing large-sized rectangular or square steel pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14268178A JPS5568121A (en) 1978-11-17 1978-11-17 Manufacture of large size square steel pipe

Publications (1)

Publication Number Publication Date
JPS5568121A true JPS5568121A (en) 1980-05-22

Family

ID=15321038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14268178A Pending JPS5568121A (en) 1978-11-17 1978-11-17 Manufacture of large size square steel pipe

Country Status (1)

Country Link
JP (1) JPS5568121A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699107A (zh) * 2012-06-19 2012-10-03 武汉钢铁(集团)公司 薄壁高强度方矩钢管的冷弯成型方法
CN103286527A (zh) * 2013-03-29 2013-09-11 常州钢劲型钢有限公司 特大口径超壁厚型方形钢管生产工艺
CN103801583A (zh) * 2014-02-13 2014-05-21 风范绿色建筑（常熟）有限公司 大规格直接成方矩管加工工艺
CN104401404A (zh) * 2014-11-27 2015-03-11 刘权 汽车车厢底架纵梁

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051459A (ja) * 1973-09-07 1975-05-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051459A (ja) * 1973-09-07 1975-05-08

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699107A (zh) * 2012-06-19 2012-10-03 武汉钢铁(集团)公司 薄壁高强度方矩钢管的冷弯成型方法
CN103286527A (zh) * 2013-03-29 2013-09-11 常州钢劲型钢有限公司 特大口径超壁厚型方形钢管生产工艺
CN103801583A (zh) * 2014-02-13 2014-05-21 风范绿色建筑（常熟）有限公司 大规格直接成方矩管加工工艺
CN104401404A (zh) * 2014-11-27 2015-03-11 刘权 汽车车厢底架纵梁

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