材料工程2018，Vol.46Issue(4)：51-57,7.DOI:10.11868/j.issn.1001-4381.2016.000773
钨酸钠对取向硅钢绝缘涂层性能的影响
Effects of Sodium Tungstate on Properties of Insulation Coating for Grain-oriented Silicon Steel
摘要
Abstract
The effect of sodium tungstate in insulation coating solution of grain-oriented silicon steel on the microstructure and properties of the prepared phosphate insulation coating was investigated by using scanning electron microscopy (SEM), Epstein square, insulating resistance tester and Fourier transform infrared spectrum (FTIR) et al. The results show that, with the gradually increasing content of sodium tungstate in the coating solution, the wetting angle between the coating solution and the grain-oriented silicon steel substrate first decreases and then increases; the interlamination resistance, lamination factor and magnetism induction intensity of grain-oriented silicon steel first increase and then decrease, the iron loss first decreases and then increases. When the sodium tungstate content is 2. 0％ (mass fraction), the coating solution shows the best wettability on the grain-oriented silicon steel substrate, the wetting angle is 39. 3°; at the same time, the formed insulation coating is dense and smooth, there is a diffusion area about 0. 8μm at the junction between the insulation coating and the magnesium silicate bottom layer, furthermore, the humidity resistance of the insulation coating is not significantly changed; the interlamination resistance, lamination factor, magnetism induction intensity and iron loss of grain-oriented silicon steel reach the optimal values, which are 14073() · mm2, 97. 0％, 1. 893T and 1. 051W · Kg-1,respectively.关键词
取向硅钢/绝缘涂层/磁性能/耐吸湿性Key words
grain-oriented silicon steel/insulation coating/magnetic property/humidity resistance分类
矿业与冶金引用本文复制引用
王晨,王魁,肖小波,丁浩,汪炳叔,毛朝武,张维林,金钢南..钨酸钠对取向硅钢绝缘涂层性能的影响[J].材料工程,2018,46(4):51-57,7.基金项目
国家重点研发计划资助项目 (2016YFB0700203) （2016YFB0700203）
国家自然基金资助项目 (51001027,51301040) （51001027,51301040）
福建省自然科学基金资助项目 (2017J01477) （2017J01477）
