摘要
在一定电流密度的条件下,对50CrVA弹簧进行电镀镉,研究弹簧内圈电镀时间和内孔辅助阳极材质及结构对镀层厚度大小和均匀性的影响。试验结果表明:电镀镉辅助阳极选择均匀打孔(孔径为3m m),截面积为10m m×10m m的镉棒时,弹簧内圈镀层厚度均匀性最好,弹簧上、中、下端镀层厚度差异小,厚度大小为8.1~10.9μm;在相同的电流密度下电镀时,选择首先对弹簧内孔单独电镀15min,然后整体电镀40min的方法,内圈与外圈镀层厚度差异较小,均能满足工程图纸和设计的要求。
This paper studies the Cadmium plating on 50CrVA springs that under the condition of a certain current density,the influence of the plating time and the materials and structure of the inner auxiliary anode on the coating thickness and uniformity of the coating.It is found that an auxiliary Cadmium anode which performed with uniform holes(pore radius is 3mm)and cross-sectional area of 10mm×10mm is used can obtain the uniform coating thickness.And the upper、middle and lower t hickness of the s pring is s mall,can obtain 8.1~10.9μm.When Cadmium plating at the same current,the method of plating the spring inner hole separately for 15min and then plating the whole spring for 40min that is selected.By this method,the difference of the coating thickness between the inner ring and outer ring is small,which can meet the requirements of the engineering drawings and design.
作者
杨蕾
孟保利
岳珊
YANG Lei;MENG Baoli;YUE Shan(AVIC Xi'an Aircraft Industry Group Company Co.,Ltd.,Xi'an,Shaanxi Province,710089 China)
出处
《科技创新导报》
2021年第8期103-106,共4页
Science and Technology Innovation Herald
