A customer inquired that in the production process of using matte tin additives, the workpiece tin plating layer appeared poor uniformity phenomenon, what is the reason for this?
1, the concentration of additives in the plating solution is not uniform. This is mainly due to the plating solution does not use stirring or stirring is not uniform, the general tin plating solution is used to move the cathode to the plating solution for stirring, so as to effectively improve the plating layer of the plating capacity and improve the cathode's current density, to prevent the plating layer burnt, pinholes, stripes and other phenomena occurring.
2, high temperature of the plating solution. General matte tin plating solution temperature higher than 30 ℃ will seriously affect the uniformity of the tin plating layer, resulting in a relatively thin thickness of the plating layer, uneven plating will be even thinner in the local phenomenon. Therefore, we should strictly control the temperature of the plating solution in the production process in the range of 15 ~ 25 ℃.
3, poor electrical conductivity of the hangers. Some production lines due to poor contact, poor electrical conductivity, resulting in the workpiece in the tin-plating process of the current distribution is not uniform, the uniformity of the workpiece plating is relatively poor. Therefore, we pay attention to checking the wire performance of the hangers in the production process to ensure that the workpiece to obtain good electrical conductivity.
About us
Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D，production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, Bigely Technology is a national high-tech enterprise with a strong research and development team, which has over 10 engineers with more than 20 years' working experience in the electroplating industry.
If you need our high-quality electroplating additives, please contact us. We can provide you samples for test, and also provide a series of services.
