| 引用本文: | 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,2013,21(3):116-121.DOI:10.11951/j.issn.1005-0299.20130318. |
| YI Hui-li,GU Bao-shan,YANG Pei-yan,GONG Li,GUO Da-wei.Influence of ZnO on performance of chromium-free non-oriented silicon steel insulating coating[J].Materials Science and Technology,2013,21(3):116-121.DOI:10.11951/j.issn.1005-0299.20130318. |
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| ZnO对无铬无取向硅钢绝缘涂层性能的影响研究 |
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弋慧丽1,2,顾宝珊1,2,杨培燕1,2,宫丽1,2,郭大伟1,2
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（1.中国钢研科技集团有限公司,北京 100081; 2.先进金属材料涂镀国家工程实验室,北京 100081）
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| 摘要: |
| 主要研究了氧化锌对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响.用盐雾实验和动电位极化研究了不同氧化锌含量对硅钢绝缘涂层的耐蚀性和电化学行为的影响.采用SEM和体视显微镜对涂层的表面形貌和附着性能进行研究.结果表明,氧化锌含量为4.0%时,氧化锌能完全中和涂层表面的游离磷酸,涂层的耐蚀性和附着性最好；氧化锌含量过少或过多时,涂层的耐蚀性和附着性都较差. |
| 关键词: 硅钢 无铬涂料 氧化锌 磷酸盐 |
| DOI：10.11951/j.issn.1005-0299.20130318 |
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| Influence of ZnO on performance of chromium-free non-oriented silicon steel insulating coating |
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YI Hui-li1,2,GU Bao-shan1,2,YANG Pei-yan1,2,GONG Li1,2,GUO Da-wei1,2
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(1.China Iron and Steel Research Institute Group,Beijing 100081,China;2.National Engineering Laboratory for Advanced Coatings Technology of Metal Material,Beijing 100081,China)
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| Abstract: |
| This paper studies the influence of zinc oxide on the performance of chromium-free non-oriented silicon steel insulating coating which based on aluminum dihydrogen phosphate. Salt spray experiment and potentiodynamic polarization were used to study the influence of zinc oxide content on the corrosion resistance and electrochemical behavior of the insulation coating of silicon steel. The surface morphology and adhesion of coating were tested by SEM and stereo microscope. The results show that when the zinc oxide content is 4.0%, the free phosphoric acid in the coating surface can be completely neutralized by zinc oxide and the coating has best corrosion resistance and adhesion; when zinc oxide content is too low or too high, the coating has poor corrosion resistance and adhersion. |
| Key words: silicon steel chromium-free coating zinc oxide phosphate |
