金属纤维烧结毡表面电镀Ni-P合金工艺及性能研究

Study on Process and Properties of Ni-P Alloy Plating on Metal Fiber Sintered Felt Surface

利用电镀的方法改变金属纤维烧结毡的性能,在金属纤维烧结毡表面覆盖一层Ni-P合金,并对镀液、镀层及镀后纤维毡过滤性能进行测试。结果表明,Ni-P合金电镀工艺镀液极化良好,性能稳定,电镀光亮范围宽,可以获得外观光泽明亮,表面平整、光滑,没有缺陷的镀层,改善了纤维毡的表面质量。金属纤维烧结毡的透气性随着电镀时间的加长而降低,泡点压力和纤维毡的过滤精度随着电镀时间的加长而升高。

Properties of metal fiber sintered felt can be changed by plating method. In this paper, Ni-P alloy was electroplated on the metal fiber sintered felt surface, and the electrolyte, coatings as well as the filtration performance of the fiber felt after plating were also measured. The results indicated that the elec- troplating process of Ni-P alloy possessed good polarization property, stable performance and wide bright plating range. Coatings with bright appearance, fiat and smooth surface, no defect could be obtained, and the surface quality of fiber felt was improved. The results also indicated that air permeability of metal fiber sintered felt decreased while bubble pressure and filtration precision of the fiber felt increased with the plating time.