发明名称 |
COATING SOLUTION FOR FORMING INSULATING FILM WITH EXCELLENT CORROSION RESISTANCE PROPERTY AND FILM CLOSE ADHESION PROPERTY AND FILM INTENSITY WITHOUT CHROME AND A METHOD FOR MAKING THE INSULATION FILM ON NON-ORIENTED ELECTRICAL STEEL SHEET BY USING IT |
摘要 |
There is provided a chromium-free coating composition for forming an insulation film, the composition having excellent corrosion resistance and excellent film adhesion and film strength after stress relief annealing (SRA), including, based on a 100 g phosphate solution having a solid content of 60% by weight, in which monoaluminum phosphate and monozinc phosphate are mixed at a 1:1 ratio: 0.5˜5 g of a solid in which cobalt hydroxide and strontium hydroxide are mixed at a 1:1 ratio: 100˜300 g of an emulsified polyester resin or an emulsified epoxy resin having a solid content of 20% by weight; 3˜10 g of aluminum silicate having a solid content of 20% by weight; and 0.1˜6 g of a titanium chelate. |
申请公布号 |
EP2046899(A1) |
申请公布日期 |
2009.04.15 |
申请号 |
EP20070747019 |
申请日期 |
2007.06.20 |
申请人 |
POSCO |
发明人 |
HAN, MIN-SOO;KIM, JUNG-WOO;KIM, JAE-KWAN;KIM, SEONG-HO |
分类号 |
C09D5/08;C21D8/12;C23C22/74 |
主分类号 |
C09D5/08 |
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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