Post-plating Treatment in Electroplating Process
Release time:
2023-07-29
Post-plating Treatment in Electroplating Process
(1) Passivation treatment. The so-called passivation treatment refers to a chemical treatment in a certain solution to form a layer of solid and dense, high stability film on the coating surface treatment method. Passivation greatly improves the corrosion resistance of the coating and can increase the surface gloss and anti-pollution ability. This method has a wide range of applications, and can be passivated after plating Zn, Cu and Ag.
(2) hydrogen removal treatment. Some metals such as zinc, in the electrodeposition process, in addition to their own deposition, but also part of the hydrogen precipitation, this part of the hydrogen into the coating, so that the plating parts produce brittle, or even fracture, known as hydrogen embrittlement. In order to eliminate hydrogen embrittlement, often after electroplating, the plated parts are heat treated at a certain temperature for several hours, called hydrogen removal treatment.
(2) hydrogen removal treatment. Some metals such as zinc, in the electrodeposition process, in addition to their own deposition, but also part of the hydrogen precipitation, this part of the hydrogen into the coating, so that the plating parts produce brittle, or even fracture, known as hydrogen embrittlement. In order to eliminate hydrogen embrittlement, often after electroplating, the plated parts are heat treated at a certain temperature for several hours, called hydrogen removal treatment.
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