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讨论了镀液组成对镀层成份、结构和表面形貌的影响．结果表明，镀层中的Ｗ，Ｐ和ＳｉＣ含量随着Ｎａ２ＷＯ４·２Ｈ２Ｏ浓度的提高而增加，随着Ｈ３Ｃ６Ｈ５Ｏ７·Ｈ２Ｏ浓度的升高而降低；Ｎａ２ＷＯ４·２Ｈ２Ｏ和Ｈ３Ｃ６Ｈ５Ｏ７·Ｈ２Ｏ浓度对复合镀层的结构影响不大，但对镀层表面形貌影响较大，当Ｎａ２ＷＯ４·２Ｈ２Ｏ的浓度为９０～１５０ｇ／Ｌ，Ｈ３Ｃ６Ｈ５Ｏ７·Ｈ２Ｏ的浓度为１５０～１７０ｇ／Ｌ时，可得到颗粒较细的镀层．
The effects of bath composition on the composition, structure and surface morphology of the coating were discussed. The results show that the content of W, P and SiC in the coating increases with the concentration of Na2WO4 · 2H2O and decreases with the increase of the concentration of H3C6H5O7 · H2O. The effect of Na2WO4 · 2H2O and H3C6H5O7 · H2O concentrations on the structure of the composite coating is not affected Large, but had a great influence on the surface morphology of the coating. When the concentration of Na2WO4 · 2H2O was 90-150 g / L and the concentration of H3C6H5O7 · H2O was 150-170 g / L, the fine particles could be obtained.