Study on the dramatic decrease in surface resistance of insulation films on non-oriented silicon steel after stress relief annealing

摘要：

　　Now insulation films are often prepared by smooth rubberroll on the surface of non-oriented silicon steel sheet.Though the surface resistance is enough high to ensure the quality,it will dramatically decrease after stress relief annealing.In order to understand the related mechanism,the films microstructure was characterized by SEM.The results show that the main composition of semi-inorganic coating is Cr,Mg C and O,in which C come from the organic polymer.According to the composition,the insulation film can be divided into two parts,the outer one is organic polymer and the inner one is chromate.The main reason for the unstable surface resistance is that the coating in the thickness direction is not uniformity.

关键词： Electrical steel Insulation film Surface resistance

作者: Guangming You Na Li Wenhao Li Jianzun Liu Xianghua Kong

作者单位: WISDRI(Xinyu)Cold Processing Engineering Co., LTD, Jiangxi Province, China Institute for Advanced Materials and Technology, University of Science and Technology Beijing,Beijin

会议类型: 国际会议

会议名称: 3rd International Conference on Frontiers of Manufacturing and Design Science(第三届制造与设计科学前沿国际会议(ICFMD))

会议地点: 香港

会议语种:英文

页码: 152-155

在线出版日期: 2012-12-11（万方平台首次上网日期，不代表论文的发表时间）