Study on Environment Friendly Insulated Coating for Non-Oriented Electrical Steel Sheet

Xue Qiang Dong; Tai Xiong Guo; Quan Xu; Xi Yin; Chang Rong Ran

doi:10.4028/www.scientific.net/AMR.634-638.3002

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Study on Environment Friendly Insulated Coating for Non-Oriented Electrical Steel Sheet

Abstract:

At presant, most of the insulated coatings for non-oriented electrical steels contain chromium, and which need to be cured at a higher temperature. On the basis of analyzing the characteristic of the film-forming substance, a environment friendly insulated coating that have lower curing temperature for non-oriented electrical steel sheet is developed and coating process is studied as well, then measured the adhesion, insulation resistance, heat resistance, corrosion resistance and other properties of the coating. The results showed that, the coating can be fast-curing from 150°C to 250 °C, film of the coating is smooth, compact and uniform, and has excellent performance. So the new coating can meet the application requirement of the small and medium-sized motor.