Preparation method of phosphating and environmentally protective insulating coating for non-oriented electrical steel

KONG Xianghua; ZHANG Dongsheng; HE Yedong; ZHU Tao; LUO Xiaogang; ZHANG Jianping; LIU Hui

doi:10.13374/j.issn1001-053x.2007.s2.066

Volume 29 Issue S2

Aug. 2021

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KONG Xianghua, ZHANG Dongsheng, HE Yedong, ZHU Tao, LUO Xiaogang, ZHANG Jianping, LIU Hui. Preparation method of phosphating and environmentally protective insulating coating for non-oriented electrical steel[J]. Chinese Journal of Engineering, 2007, 29(S2): 108-111. doi: 10.13374/j.issn1001-053x.2007.s2.066

Citation:

KONG Xianghua, ZHANG Dongsheng, HE Yedong, ZHU Tao, LUO Xiaogang, ZHANG Jianping, LIU Hui. Preparation method of phosphating and environmentally protective insulating coating for non-oriented electrical steel[J]. Chinese Journal of Engineering, 2007, 29(S2): 108-111. doi: 10.13374/j.issn1001-053x.2007.s2.066

Citation:

KONG Xianghua, ZHANG Dongsheng, HE Yedong, ZHU Tao, LUO Xiaogang, ZHANG Jianping, LIU Hui. Preparation method of phosphating and environmentally protective insulating coating for non-oriented electrical steel[J]. Chinese Journal of Engineering, 2007, 29(S2): 108-111. doi: 10.13374/j.issn1001-053x.2007.s2.066

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Preparation method of phosphating and environmentally protective insulating coating for non-oriented electrical steel

doi: 10.13374/j.issn1001-053x.2007.s2.066

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Maanshan Iron & Steel Co. Ltd., Ma'anshan 243000, China;
3. Maanshan Jin Ke Co. Ltd., Maanshan 243000, China

Received Date: 2007-10-15
Available Online: 2021-08-16

Abstract

Abstract

The electrical performance of environmentally protective insulating coating for non-oriented electrical steel was studied.H₂O,Al(H₂PO₄)₃ and St-BA emulsion are the principal raw materials of the coating.The experimental results of SEM,energy spectrum,XRD,salt spray testing,rigidity and adhesive force testing show that the best mixture ratio of insulating coating for electrical steel is H₂O:Al(H₂PO₄)₃:St-BA emulsion=25:10:5.Under this condition the interlamination resistance of the electrical steel is basically more than 500(Ω·mm²)/piece,and the performances of the adhesive force and corrosion potential are fine.It is demonstrated that phosphating and environmentally protective coating is an excellent insulating coating for electrical steel.
- electrical steel,
- insulation coating,
- environmentally protective coating,
- phosphate