JPS55158803A - Manufacture of square steel shape - Google Patents

Manufacture of square steel shape

Info

Publication number
JPS55158803A
JPS55158803A JP6664179A JP6664179A JPS55158803A JP S55158803 A JPS55158803 A JP S55158803A JP 6664179 A JP6664179 A JP 6664179A JP 6664179 A JP6664179 A JP 6664179A JP S55158803 A JPS55158803 A JP S55158803A
Authority
JP
Japan
Prior art keywords
mill
steel material
rolled
reforming
welded
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
JP6664179A
Other languages
Japanese (ja)
Inventor
Hiroji Nishimoto
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 JP6664179A priority Critical patent/JPS55158803A/en
Publication of JPS55158803A publication Critical patent/JPS55158803A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To mass-produce the square shape of enclosed section at low cost through the continuous rolling line, by passing the material successively through the breakdown mill, the forming mill and the reforming mill, on purpose to carry out the reform rolling work so as to make edges of the short side to join together.
CONSTITUTION: The flat slab as the rolled material is heated and soaked to suitable temperatures, and is sent to the breakdown mill 10, by which the slab is roughly rolled through three passes into a rough shaped steel material 4 possessing an approximately W-character section gently sloped with low height and wide breadth. Next, this steel material 4 is sent to the forming mill 11 like as the two-high mill, etc., and is formed into a rought cup-type sectioned open-top steel material 6. The long side 6c of this steel material 6 is located on the center line L of the pass line. Following to this, the steel material 6 is rolled by the reforming mill 12 like as the two-high caliber mill, etc., by reducing so as to bring near each couple of the long sides 7b, 7d, and the short sides 7a, 7e, respectively. After that, the edges of the short sides 7a, 7e, are joined together to form the enclosed sectioned square steel material 7, and its seams are welded or forge-welded, and then, the final product is obtained through the straightening process.
COPYRIGHT: (C)1980,JPO&Japio
JP6664179A 1979-05-29 1979-05-29 Manufacture of square steel shape Pending JPS55158803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6664179A JPS55158803A (en) 1979-05-29 1979-05-29 Manufacture of square steel shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6664179A JPS55158803A (en) 1979-05-29 1979-05-29 Manufacture of square steel shape

Publications (1)

Publication Number Publication Date
JPS55158803A true JPS55158803A (en) 1980-12-10

Family

ID=13321718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6664179A Pending JPS55158803A (en) 1979-05-29 1979-05-29 Manufacture of square steel shape

Country Status (1)

Country Link
JP (1) JPS55158803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498323A (en) * 1982-05-25 1985-02-12 Arbed S.A. Method of rolling sheet piling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498323A (en) * 1982-05-25 1985-02-12 Arbed S.A. Method of rolling sheet piling

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