When using hard chrome additives, what are the methods for electroplating with thick chrome coatings?
The chrome plating method with local thickening of the coating layer
During functional chrome plating, it is often necessary to locally thicken the chrome coating based on the working requirements of the parts. During local thickening, the deposition rate is about half slower than that of normal chrome plating. This is mainly because during the electroplating process, the area of the anode is larger than that of the cathode, which leads to an increase in the oxidation reaction and a decrease in trivalent chromium, thus resulting in a slower deposition rate.
Therefore, during the application of hard chrome additives, the electroplating plant can double the current density, or adopt methods such as having an anode area similar to the cathode area, using segmented thickening, and shape-based anodes to solve the problem.
The chrome plating method with thicker coating at the acute angle areas
When thickening and chrome-plating the edges of acute or sharp-angle parts, the chrome coating at the sharp corner often becomes too thick and protrudes. During the grinding process, due to the brittleness of the chrome coating, severe peeling and cracks occur at the sharp corner of the chrome coating.
How to solve this problem? As a manufacturer of hard chrome additives, Bigely suggests that the sharp corners of the chrome-plated area should be first rounded off. The size of the rounded corner should be determined according to the thickness of the chrome coating. By adopting this method, the quality of the chrome coating can be ensured.
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 has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
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.
