| 摘要 |
<p>A non-chromic insulating coating for non-oriented silicon steel comprises, in weight parts, the following components: 100 parts of metal dihydrogen phosphate, 10-60 parts of epoxy resin, 0.001-10 parts of naphthenate or metal isooctoate as drier, 0.001-100 parts of organic solvent, 60-2000 parts of pure water. The metal dihydrogen phosphate is Al(H2PO4)3, Mg(H2PO4)2, Ca(H2PO4) 2,or Zn(H2PO4) 2. The epoxy resin is water-soluble epoxy resin or epoxy resin latex. After being applied onto the non-oriented silicon steel, the insulating coating has highly transparent external appearance, excellent insulating property, resistance to corrosion, adhesiveness, weldability, manufacturability, and eco-friendliness, and eliminates the defects of pastiness and low abrasion resistance of non-chromic coating.</p> |
