Title:
A line slot formation method of a steel strip, and a manufacturing method of a directivity electromagnetic plate and sheet
Document Type and Number:
Japanese Patent JP6103133
Kind Code:
B2
Abstract:
A resist coating for etching use which enables high speed and high accuracy patterning is provided by applying, to a steel strip, a negative resist ink which solidifies upon exposure to light; drying the ink to form a resist coating; then irradiating the steel strip with light while moving a mask member in synchronization with a traveling speed of the steel strip, the mask member being configured to cover a surface of the resist coating to block light, to thereby solidify a portion of the resist coating not covered with the mask member to form a solidified portion; and removing an unsolidified portion other than the solidified portion with a developing solution. Subsequently, by dissolving and removing by etching a portion of the steel strip below the removed portion of the resist coating, a fine and uniform linear groove can be formed in a surface of the steel strip.
Inventors:
Hirokazu Kobayashi
Application Number:
JP2016510334A
Publication Date:
March 29, 2017
Filing Date:
December 18, 2015
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C25F3/14; C21D8/12; C25F3/06; H01F1/16
Domestic Patent References:
| JP62179105A | ||||
| JP11288080A | ||||
| JP2011059196A | ||||
| JP4042159A |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara