What is plating pre-treatment and post-treatment
Release time:
2023-07-29
Before the workpiece is plated, the preparation work for the workpiece is generally called pretreatment, also known as pretreatment. Pre-treatment mainly includes leveling, polishing, degreasing, rust removal, surface activation, local insulation, etc. The purpose of pretreatment is to make the surface state of the workpiece meet the requirements of electroplating and obtain a high-quality electroplating layer. In addition, cleaning the workpiece can also prevent contamination of the plating solution.
Before the workpiece is plated, the preparation work for the workpiece is generally called pretreatment, also known as pretreatment. Pre-treatment mainly includes leveling, polishing, degreasing, rust removal, surface activation, local insulation, etc. The purpose of pretreatment is to make the surface state of the workpiece meet the requirements of electroplating and obtain a high-quality electroplating layer. In addition, cleaning the workpiece can also prevent contamination of the plating solution. Pretreatment is very important for the whole electroplating process. Practice shows that many electroplating quality problems are not caused by the electroplating process itself, but by improper treatment before plating. Metal products can meet the requirements of the surface state before electroplating is the premise of obtaining high-quality coating. On rough metal surfaces and oily metal surfaces, smooth and bright coatings cannot be obtained. The post-plating treatment is a subsequent treatment after the plating of the deposited layer is completed. The object is to further improve the corrosion resistance, decorativeness and the like of the coating. Post-treatment measures include passivation, sealing, light, coloring, and hydrogen removal.
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