Title:
METHOD FOR FORMING LINEAR GROOVE ON COLD ROLLED STEEL STRIP AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2016/092858
Kind Code:
A1
Abstract:
An etching resist coat in which a pattern is rapidly and accurately formed can be obtained by applying a positive resist ink that is solubilized by exposure to light to a cold rolled steel strip, drying the positive resist ink into a resist coat thereafter, forming a photosensitive part by sweeping laser light focused into a point over the cold rolled steel strip in the width direction thereof, and removing the resist coat on the photosensitive part with a developer. Subsequently, a fine, uniform groove can be formed on the surface of the cold rolled steel strip by etching to dissolve and remove a part of the cold rolled steel strip from which the resist coat has been removed.
Inventors:
KOBAYASHI HIROKAZU (JP)
Application Number:
PCT/JP2015/006175
Publication Date:
June 16, 2016
Filing Date:
December 10, 2015
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C25F3/14; C25F3/06; C25F7/00; G03F7/40; H01F1/16
Foreign References:
| JP2011137193A | 2011-07-14 | |||
| JPH03204107A | 1991-09-05 | |||
| JPS62179105A | 1987-08-06 |
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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