为减少高硅钢铁芯叠片间的涡流损耗，以磷酸二氢铝、苯丙乳液、甘油及水为主要原料，制备出一种适合高硅钢用无铬环保半有机绝缘涂层．利用光电子谱仪、扫描电镜及能谱仪对高硅钢脱碳退火板的氧化薄膜、绝缘涂层的微观结构形貌及部分缺陷进行分析，并研究了该涂层的涂覆量对其附着性、硬度及绝缘性能的影响．研究结果表明：普通无取向硅钢磷酸盐环保半有机绝缘涂层同样适用于高硅钢；绝缘涂层的均匀性取决于高硅钢片表面的平整度、涂辊表面质量以及对涂覆速度的平稳控制；高硅钢的表面粗糙度及氧化膜厚度对绝缘涂层的附着性有着重要影响；本试验制备的半有机涂层每面涂覆量控制在0．8～1．2 g／m2，具有良好的附着性及绝缘性能，层间电阻在5Ω·cm2／片以上．
To reduce eddy current loss between the core lamination of high silicon steel, a kind of chromium?free environment friendly inorganic?organic insulation coating was prepared by Al(H2PO4)3, St-BA emulsion, glycerol and H2 O. The oxide film of decarburization annealed high silicon sheet, the microstructure and defects of the coating were analyzed by X?ray photoelectron spectroscopy(XPS), scanning electron microscope (SEM) and energy dispersive spectroscopy ( EDS ) . The effects of coating weight on the adhesiveness, hardness and insulating properties were studied. The results show that the phosphate inorganic?organic insulation coating for non?oriented silicon steel can also be suitable for high silicon steel. The uniformity of the insulating coating depends on the surface flatness of high silicon steel, the surface quality of coating roll and the controlling coating speed. The surface roughness and thickness of oxide film of high silicon steel have influences on the adhesiveness of insulating coating. This coating has good adhesion and insulating properties when the coating weight per side is 0.8~1.2 g/m2 , the interlamination resistance reaches above 5Ω·cm2/piece.
参考文献
| [1] | HAIJI H, OKADA K, HIRATANI T, et al. Magnetic properties and workability of 6.5wt.%Si steel sheet[J]. Journal of Magnetism and Magnetic Materials, 1996, 160:109-114.,1996. |
| [2] | 林均品,叶丰,陈国良,王艳丽,梁永锋,金吉男,刘艳.6.5wt%Si高硅钢冷轧薄板制备工艺、结构和性能[J].前沿科学,2007(02):13-26. |
| [3] | LINDENMO M, COOMBS A, SNELL D. Advantages, properties and types of coatings on non-oriented electri-cal steels [J]. Journal of Magnetism and Magnetic Materials, 2000, 215-216:79-82.,2000. |
| [4] | NAKAMURA M, SUGIYAMA T, KITAYAMA M. Magnetic and insulating properties of electrical steel with a new insulating coating [J]. IEEE Transactions on Magnetics, 1981, 17(3):1270~1274.,1981. |
| [5] | KUBOTA T, YOSHIMI N, ANDO S, et al. Newly developed Chromium-free organic-inorganic composite coated steel sheet with excellent corrosion resistance [C]//Environmentally Conscious Design and Inverse Manufacturing, International Symposium on 2001. Tokyo:IEEE Conference Publications, 2001:397-406.,2001. |
| [6] | 弋慧丽,顾宝珊,杨培燕,宫丽,郭大伟.ZnO对无铬无取向硅钢绝缘涂层性能的影响研究[J].材料科学与工艺,2013(03):116-121. |
| [7] | LIU J L, SHA Y H, ZHANG F, et al . Development of{210}<001> recrystallization texture in Fe-6. 5wt.%Si thin sheets[J].Scripta Materialia,2011,65 |
| [8] | FANG X S, LIANG Y F, YE F, et al . Cold rolled Fe-6.5wt.%Si alloy foils with high magnetic induction[J].Journal of Apllied Physics,2012,111(094913):1-4.,2012. |
| [9] | LIU Haitao, LIU Zhenyu, SUN Yu, et al . Develop-ment of λ-fiber recrystallization texture and magnetic property in Fe-6.5wt%Si thin sheet produced by strip casting and warm rolling method[J].Materials Letters,2013,91 |
| [10] | Hua-dong Fu,Zhi-hao Zhang,Hong-jiang Pan,Yuan-ke Mo,Jian-xin Xie.Warm/cold rolling processes for producing Fe-6.5wt％ Si electrical steel with columnar grains[J].矿物冶金与材料学报,2013(06):535-540. |
| [11] | LIANG Y F,GE J W, FANG X S, et al. Hot deformation behavior and softening mechanism of Fe-6.5wt%Si alloy [J]. Materials Science & Engineering A, 2013(570):8-12.,2013. |
| [12] | 孔祥华,张东升, 何业东, 等. 无取向硅钢磷酸盐环保绝缘涂层制备工艺[J]. 北京科技大学学报, 2007, 29(S2):108-111. KONG Xianghua, ZHANG Dongsheng, HE Yedong,et al. Preparation method of phosphating and environmen-tally protective insulating coating for non-oriented elec-trical steel [J]. Journal of University of Science and Technology Beijing, 2007, 29(S2):108-111.,2007. |
| [13] | 朱涛,孙致平,陈其安,董梅,裴陈新.无取向电工钢无铬绝缘涂层的制备及性能[J].钢铁,2009(05):52-55. |
| [14] | 吴树建 .无取向硅钢绝缘涂层附着性的研究[D].上海交通大学,2008. |
| [15] | 何忠治,赵宇,罗海文. 电工钢[M]. 北京:冶金工业出版社, 2012.,2012. |
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