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alkali Conversion Coating Composition of Magnesium and Magnesium Alloy and Surface Treating Method Using The Same
alkali Conversion Coating Composition of Magnesium and Magnesium Alloy and Surface Treating Method Using The Same
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机译:镁和镁合金的碱转化膜组成及其表面处理方法
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摘要
The alkaline processing composition for forming a chemical conversion coating on a surface of a magnesium and magnesium alloy material comprises 2 to 10% by weight of a phosphate compound, 1 to 5% by weight of an inorganic metal sol, 0.03 to 0.3% by weight of a vanadium compound, 0.5 to 5% 0.01 to 0.1% by weight of an acrylic resin, and an extra water-soluble solvent. The above-described composition forms a uniform and dense chemical conversion coating film on the surface of magnesium or magnesium alloy material, and imparts corrosion resistance, top adhesion and water resistance to water, and does not cause surface defects in top coating.
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