镀锌层无铬彩色钝化剂的研究
发布时间：2019-08-13 07:40
【摘要】：通过单因素试验和正交试验研究了一种无铬彩色钝化剂中不同组分(包括硫酸亚铈、柠檬酸钠和硝酸钴)用量对钝化膜外观与耐蚀性的影响,得到较优的钝化剂配方为:硫酸亚铈50 g/L,柠檬酸钠15 g/L,硝酸钴20 g/L。采用最优配方在pH 1.5和温度20~30℃的条件下对镀锌层处理15 s,所得钝化膜平整、均匀,呈光亮的彩虹色。该钝化膜可通过24 h的中性盐雾腐蚀试验。
[Abstract]:The effects of different components (including cerium sulfate, sodium citrate and cobalt nitrate) in a chromium-free color passivator on the appearance and corrosion resistance of passivation film were studied by single factor test and orthogonal test. The optimum passivator formula was obtained as follows: cerium sulfate 50 g 路L, sodium citrate 15 g / L, cobalt nitrate 20 g 路L ~ (- 1). The passivation film was smooth, uniform and bright rainbow color when the galvanized layer was treated with pH 1.5 and temperature 20 鈮，
本文编号：2525975
[Abstract]:The effects of different components (including cerium sulfate, sodium citrate and cobalt nitrate) in a chromium-free color passivator on the appearance and corrosion resistance of passivation film were studied by single factor test and orthogonal test. The optimum passivator formula was obtained as follows: cerium sulfate 50 g 路L, sodium citrate 15 g / L, cobalt nitrate 20 g 路L ~ (- 1). The passivation film was smooth, uniform and bright rainbow color when the galvanized layer was treated with pH 1.5 and temperature 20 鈮，
本文编号：2525975
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2525975.html
