发明名称 |
GRAN-ORIENTED ELECTRICAL STEEL SHEET WITH EXCELLENT ADHESION PROPERTY OF INSULATION FILM AND METHOD FOR MANUFACTURING THE SAME |
摘要 |
PURPOSE: An electrical steel sheet with directivity of which the insulation film has an excellent adhesion property and a manufacturing method thereof are provided to manufacture an electrical steel sheet with directivity which has an excellent magnetic property by improving a core loss property and high film tension. CONSTITUTION: A manufacturing method of an electrical steel sheet with directivity of which the insulation film has an excellent adhesion property comprises: a step of providing an electrical steel sheet with directivity from which a forsterite film is removed; a step of coating the surface of the electrical steel sheet with directivity with a metal alkoxide compound and metal phosphate; and a step of heating the coated electrical steel sheet with directivity. [Reference numerals] (AA) Core loss improvement rate(%); (BB) Present invention; (CC) Coating temperature(°C); |
申请公布号 |
KR20130035090(A) |
申请公布日期 |
2013.04.08 |
申请号 |
KR20110099357 |
申请日期 |
2011.09.29 |
申请人 |
POSCO |
发明人 |
KWON, MIN SERK;HAN, MIN SOO;SON, BUNG KAN;HAN, CHAN HEE;PAKR, SOON BOK |
分类号 |
C21D9/46;C23C22/00;H01F1/18 |
主分类号 |
C21D9/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|