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A Nickel-Manganese-Modified Low Zinc Phosphate Solution for Cathode-Electrophoretic Painting of Steel Substrates
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作者 libao-song LINAn +1 位作者 GANFu-xing ZHANGXu-jian 《材料热处理学报》 EI CAS CSCD 北大核心 2004年第05B期1159-1162,共4页
Phosphate coatings are partially dissolved in the cathodic area during the cathode-electrophoretic painting processes causing the result that the coatings adhesion, corrosion protection, alkaline resistance are decrea... Phosphate coatings are partially dissolved in the cathodic area during the cathode-electrophoretic painting processes causing the result that the coatings adhesion, corrosion protection, alkaline resistance are decreased. Furthermore, the service life of the coated production will be shortened. The addition of Ni2+, Mn2+ to the phosphating bath to improve the corrosion stability, alkaline resistance, as well as the adhesion of coating layers is studied in the article. These heavy metals do not only catalyse the surface reactions but generate a more corrosion resistant surface. We perfected the trecation phosphate solution by reducing the sludge, accelerating the phosphating reactions, improving corrosion protection and alkaline resistance. More even and finer grain structures, excellent corrosion resistance were obtained compared to the traditional phosphating technique. 展开更多
关键词 磷化处理 电泳涂镀 耐蚀性 抗碱性
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