In this study, zinc electrodeposits were polished 1-2g/m{sup}2 in acid solution with various additives. Their effects on the whiteness and surface morphology of electrodeposits were investigated and mechanism for the improvement of surface appearance was also examined. Sulfuric acid solution and hydrochloric acid solution have a little effect on the improvement of surface appearance. But, the large increase of lightness and gloss was observed by the addition of hydrogen peroxide. From the microstructure observation, it was shown that sharp edges of thin zinc plates were altered into a smooth layered structure. Corrosion potential was shifted into the direction of positive potential and the dissolution of zinc electrodeposits was considerably accelerated by the addition of hydrogen peroxide. Nickel ion in plating bath decreased the lightness of zinc coating layer but iron didn't affect it. Gloss was not affected by the existence of nickel and iron in plating bath. In the organic coated samples, polished sample had a better corrosion resistance and black patina resistance than not polished samples. It was shown that the lightness and gloss of organic composite coated samples were also largely increased even if zinc phosphate film and organic coating was performed on the polished surface.
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机译：在该研究中，用各种添加剂抛光锌电源1-2g / m {sup} 2酸溶液。研究了对电沉积物的白度和表面形态的影响，还研究了改善表面外观的机制。硫酸溶液和盐酸溶液对表面外观的改善有点影响。但是，通过加入过氧化氢，观察到亮度和光泽的大幅增加。从微观结构观察到，显示薄锌板的锋利边缘被改变为光滑的层状结构。通过加入过氧化氢，腐蚀电位被移入正电位方向，并且通过加入过氧化氢，锌电吞的溶解。镀镍浴中的镍离子降低了锌涂层的亮度，但熨斗不影响其。光泽不会受到电镀浴中镍和铁的影响。在有机涂覆的样品中，抛光样品具有比不抛光样品更好的耐腐蚀性和黑色的铜矿抗性。结果表明，即使在抛光表面上进行磷酸锌薄膜和有机涂层，有机复合涂覆样品的亮度和光泽也大大增加。
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