JPS5481156A - Manufacture of welded box-shaped steel - Google Patents

Manufacture of welded box-shaped steel

Info

Publication number
JPS5481156A
JPS5481156A JP14971677A JP14971677A JPS5481156A JP S5481156 A JPS5481156 A JP S5481156A JP 14971677 A JP14971677 A JP 14971677A JP 14971677 A JP14971677 A JP 14971677A JP S5481156 A JPS5481156 A JP S5481156A
Authority
JP
Japan
Prior art keywords
web
flange
shaped steel
central part
weld
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
JP14971677A
Other languages
Japanese (ja)
Other versions
JPS5744407B2 (en
Inventor
Katsuichi Nakayama
Chihiro Hayashi
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 JP14971677A priority Critical patent/JPS5481156A/en
Publication of JPS5481156A publication Critical patent/JPS5481156A/en
Publication of JPS5744407B2 publication Critical patent/JPS5744407B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain welded box-shaped steel with ease of welding by the procedure in which in the forming process of channel steel, flange is formed at right angle to web, the central part of web is bent in a center high form toward the flange projection side, and the flange edges are welded at weld point while correcting the bend of the central part of web to flat form.
CONSTITUTION: A steel belt cut into a desired dimension, or the element A drawn out of uncoiler, is molded by turns into the following channel section by a plural tier of forming rolls (illustration is omitted). In short, the flange 12 is molded at right angle to the web 11 of the channel steel 1, and then the central part of the flange is formed in a center high form (C1 to 3) toward the flange projection side. Then, they are sent to the weld site D and the squeeze roll 2 is provided on each of upper and lower parts of weld point W and web receiving roll is placed on the inside coupling with the roll 2. Then the center high portion of the web is formed into flat, and then welding current is applied to the upper and lower edges of flanges combined to weld them, thus forming the box-shaped steel E.
COPYRIGHT: (C)1979,JPO&Japio
JP14971677A 1977-12-13 1977-12-13 Manufacture of welded box-shaped steel Granted JPS5481156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14971677A JPS5481156A (en) 1977-12-13 1977-12-13 Manufacture of welded box-shaped steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14971677A JPS5481156A (en) 1977-12-13 1977-12-13 Manufacture of welded box-shaped steel

Publications (2)

Publication Number Publication Date
JPS5481156A true JPS5481156A (en) 1979-06-28
JPS5744407B2 JPS5744407B2 (en) 1982-09-21

Family

ID=15481252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14971677A Granted JPS5481156A (en) 1977-12-13 1977-12-13 Manufacture of welded box-shaped steel

Country Status (1)

Country Link
JP (1) JPS5481156A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711731A (en) * 1980-06-25 1982-01-21 Komatsu Ltd Production of curved boom
JPS59191519A (en) * 1983-04-15 1984-10-30 Nippon Steel Metal Prod Co Ltd Sizing method of electric welded steel pipe
JPS59191518A (en) * 1983-04-15 1984-10-30 Nippon Steel Metal Prod Co Ltd Sizing method of electric welded steel pipe
JPS6137321A (en) * 1984-07-27 1986-02-22 Nippon Steel Metal Prod Co Ltd Forming method of angular steel pipe
JP2012157874A (en) * 2011-01-31 2012-08-23 Jfe Steel Corp Method and device for manufacturing flangeless closed cross section structural part with bent shape
WO2013153683A1 (en) * 2012-04-13 2013-10-17 Ｊｆｅスチール株式会社 Device and method for producing flangeless closed-cross-section-structure component having curved shape
US20140096888A1 (en) * 2011-07-26 2014-04-10 Antelope Oil Tool & Mfg. Co., Llc Rolled tubular centralizer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295564A (en) * 1976-02-09 1977-08-11 Nakajima Kk Method of making angular steel pipe of large diameter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295564A (en) * 1976-02-09 1977-08-11 Nakajima Kk Method of making angular steel pipe of large diameter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711731A (en) * 1980-06-25 1982-01-21 Komatsu Ltd Production of curved boom
JPS59191519A (en) * 1983-04-15 1984-10-30 Nippon Steel Metal Prod Co Ltd Sizing method of electric welded steel pipe
JPS59191518A (en) * 1983-04-15 1984-10-30 Nippon Steel Metal Prod Co Ltd Sizing method of electric welded steel pipe
JPH0438485B2 (en) * 1983-04-15 1992-06-24
JPS6137321A (en) * 1984-07-27 1986-02-22 Nippon Steel Metal Prod Co Ltd Forming method of angular steel pipe
JP2012157874A (en) * 2011-01-31 2012-08-23 Jfe Steel Corp Method and device for manufacturing flangeless closed cross section structural part with bent shape
US20140096888A1 (en) * 2011-07-26 2014-04-10 Antelope Oil Tool & Mfg. Co., Llc Rolled tubular centralizer
US9982496B2 (en) * 2011-07-26 2018-05-29 Innovex Downhole Solutions, Inc. Rolled tubular centralizer
WO2013153683A1 (en) * 2012-04-13 2013-10-17 Ｊｆｅスチール株式会社 Device and method for producing flangeless closed-cross-section-structure component having curved shape
KR20140132764A (en) * 2012-04-13 2014-11-18 제이에프이 스틸 가부시키가이샤 Device and method for producing flangeless closed-cross-section-structure component having curved shape
US9669444B2 (en) 2012-04-13 2017-06-06 Jfe Steel Corporation Method of manufacturing curvilineal closed structure parts without flange and apparatus for the same

Also Published As

Publication number Publication date
JPS5744407B2 (en) 1982-09-21

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