JPS55158803A - Manufacture of square steel shape - Google Patents
Manufacture of square steel shapeInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4498323A (en) * | 1982-05-25 | 1985-02-12 | Arbed S.A. | Method of rolling sheet piling |
-
1979
- 1979-05-29 JP JP6664179A patent/JPS55158803A/en active Pending
Cited By (1)
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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