发明名称 |
ANNEALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY |
摘要 |
<p>An annealing separator for manufacturing grain-oriented silicon steel with mirror-like surface having good magnetic performance consists of the composition of which is 77-98 by wt% of Al 2 O 3 powder, 1-8 by wt% of alkaline earth powder, 1ˆ¼15 by wt% of alkali metal chloride and/or alkaline earth metal chloride. The annealing separator of the invention can avoid forming a glass-film undercoating on the surface of the steel sheet during high-temperature annealing, and at the same time, the oxide embedded at near-surface of the sheet is removed by means of corrosive reaction of the chloride, so that a produce with smooth surface and stable magnetic performance is obtained.</p> |
申请公布号 |
EP2634270(A1) |
申请公布日期 |
2013.09.04 |
申请号 |
EP20110835488 |
申请日期 |
2011.04.14 |
申请人 |
BAOSHAN IRON & STEEL CO., LTD. |
发明人 |
ZHAO, ZIPENG;JI, YAMING;YANG, YONGJIE;LI, GUOBAO;LI, DENGFENG;XU, YUNPENG |
分类号 |
C21D1/68 |
主分类号 |
C21D1/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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