Title:
METHOD FOR FORMING LINEAR GROOVE ON STEEL STRIP AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2016/103668
Kind Code:
A8
Abstract:
A resist coating film for etching having a pattern formed thereupon can be obtained at high speed and with high precision as a result of: coating, on to a steel strip, a negative resist ink that hardens when exposed; drying same and forming a resist coating film; then irradiating light while moving, in synchronization with the travel speed of the steel strip, a mask member that covers the resist coating film surface and blocks light; solidifying the resist coating film not covered by the mask member; and then removing the resist coating film other than the solidified section, by using a developing solution. In addition, a fine and uniform linear groove can be formed on the surface of the steel strip, by dissolving and removing the portion of the steel strip having the resist coating film removed by etching.
Inventors:
KOBAYASHI HIROKAZU (JP)
Application Number:
PCT/JP2015/006332
Publication Date:
April 13, 2017
Filing Date:
December 18, 2015
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C25F3/06; C21D8/12; C23F1/00; H01F1/16
Attorney, Agent or Firm:
SUGIMURA, Kenji (JP)
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