JPS6478626A - Straightening device for shape steel - Google Patents
Straightening device for shape steelInfo
- Publication number
- JPS6478626A JPS6478626A JP23684687A JP23684687A JPS6478626A JP S6478626 A JPS6478626 A JP S6478626A JP 23684687 A JP23684687 A JP 23684687A JP 23684687 A JP23684687 A JP 23684687A JP S6478626 A JPS6478626 A JP S6478626A
- Authority
- JP
- Japan
- Prior art keywords
- shape steel
- bending
- rolling reduction
- roller
- light rolling
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
PURPOSE:To simply and exactly straighten complicated bending of shape steel, by constituting a straightening device of the shape steel which has been manufactured by cold rolling, of a bending measuring instrument of the shape steel, each light rolling reduction device of a web part and a flange part and its controller, and a roller straightening machine. CONSTITUTION:Right-and-left bending and up-and-down bending in the longitudinal direction of shape steel 6 having a web part and a flange part, which has been manufactured by cold rolling are measured. This measured value is inputted to an arithmetic operation controller to which a host CPU has been set, and by controlling the rolling reductions P1, P2 and axial direction moving extents M1, M2 of a web light rolling reduction roller 21 and a flange light rolling reduction roller 22 in a light rolling reduction device 2 by an output from the controller, and controlling the contact lengths L1, L2 in both the rollers 21, 22 and the web part and the flange part of the shape steel, light rolling reduction is executed. Subsequently, by executing up-and-down bending by a roller straightening machine 4 consisting of plural upper and lower rollers which have been arranged zigzag, the residual stress and bending are eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23684687A JPS6478626A (en) | 1987-09-21 | 1987-09-21 | Straightening device for shape steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23684687A JPS6478626A (en) | 1987-09-21 | 1987-09-21 | Straightening device for shape steel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478626A true JPS6478626A (en) | 1989-03-24 |
Family
ID=17006661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23684687A Pending JPS6478626A (en) | 1987-09-21 | 1987-09-21 | Straightening device for shape steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478626A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012218055A (en) * | 2011-04-12 | 2012-11-12 | Nippon Steel Corp | Rail straightening device |
JP2014208370A (en) * | 2013-03-22 | 2014-11-06 | Jfeスチール株式会社 | Device and method for correcting shape steel, and equipment and method for manufacturing shape steel |
-
1987
- 1987-09-21 JP JP23684687A patent/JPS6478626A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012218055A (en) * | 2011-04-12 | 2012-11-12 | Nippon Steel Corp | Rail straightening device |
JP2014208370A (en) * | 2013-03-22 | 2014-11-06 | Jfeスチール株式会社 | Device and method for correcting shape steel, and equipment and method for manufacturing shape steel |
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