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Coat performance is superior the non directivity electromagnetic steel sheet and the insulating coat treatment agent and the insulating coat treatment manner
Coat performance is superior the non directivity electromagnetic steel sheet and the insulating coat treatment agent and the insulating coat treatment manner
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机译:涂层性能优于无方向性电磁钢板和绝缘涂层处理剂及绝缘涂层处理方式
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摘要
PROBLEM TO BE SOLVED: To produce a nondirectional magnetic steel sheet with similar or superior film coating characteristics to a conventional insulation film coating agent containing a Cr compound, an insulation film coating agent and a coating film formation method, by improving coatability of a solution, hygroscopicity, baking properties and weldability, and punching properties, or the like of a phosphate-emulsion resin-based insulation coating film which does not contain the Cr compound.;SOLUTION: The nondirectional magnetic steel sheet is treated with the film coating agent in which a phosphate of Al/Ca, an emulsion resin containing an ultrafine particle emulsion resin with a particle diameter of 0.04-10 μm of 20 % or more and the insulation coating agent obtained by incorporating a water-soluble organic compound, a hydroxide, and an oxide. Organic matter in the coating film components is 5-40 pts.mass in terms of solid content based on the phosphate of 100 pts.mass. The surface roughness is Ra 0.10-0.50 μm. The insulation film coating agent comprises the emulsion resin with a particle diameter of 0.04-10 μm of 5-40 pts.mass and the water-soluble organic compound of 0.5-10 pts.mass to 100 pts.mass of the primary phosphate of Al/Ca.;COPYRIGHT: (C)2005,JPO&NCIPI
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