Title:
鋼片の研削方法、棒鋼の製造方法及び線材の製造方法
Document Type and Number:
Japanese Patent JP6992898
Kind Code:
B2
Abstract:
Provided are a method for grinding a steel billet, a method for manufacturing steel bar, and a method for manufacturing wire rod, with which surface defects can be reduced further while suppressing a deterioration in productivity. This method for grinding a steel billet, method for manufacturing steel bar, and method for manufacturing wire rod include a step, prior to rolling of a steel billet which is long in one direction and which has a rectangular cross sectional shape when cut along a plane perpendicular to said one direction, of grinding a region including a zone of up to at least 26% and at most 30% of the length of one side from a corner portion of the rectangle, along said one side, over the entire length of the steel billet.
Inventors:
Kenichi Komaki
Keiichi Maruta
Keiichi Maruta
Application Number:
JP2020526044A
Publication Date:
January 13, 2022
Filing Date:
February 20, 2020
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B24B7/12; B21B1/02; B21B1/16; B21B15/00; B21B38/00; B21C51/00; B24B9/00; B24B27/00; B24B27/033
Domestic Patent References:
| JP1150402A | ||||
| JP2008068297A | ||||
| JP2004181561A | ||||
| JP60033803A |
Attorney, Agent or Firm:
田中 秀▲てつ▼
Hirose Hajime
Miyasaka Tohru
Tetsuya Mori
Hirose Hajime
Miyasaka Tohru
Tetsuya Mori
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