Influencing factors of galvanizing of precision stamping parts

Stamping parts processing manufacturers usually use galvanizing, nickel plating and other methods for surface treatment of stamping parts, so that product quality can be better guaranteed. Electro-galvanization is widely used. This article introduces you to the factors that affect galvanization during the processing process, so as to avoid unnecessary losses due to poor surface treatment caused by these factors. 1. The surface treatment of metal stamping parts is not thorough, and there is an oxide film on the surface of the workpiece, which affects the normal deposition of zinc; 2. The workpiece is tied up too densely, and the workpiece is partially galvanized during galvanizing. 3. The stamping part has high carbon content and high carbon steel. , Cast iron parts, etc. will reduce the hydrogen evolution potential, accelerate the hydrogen evolution on the surface of the workpiece, and reduce the current efficiency; 4. The additive content in the galvanizing bath is too low. If the additive content is too low, it will affect the dispersion ability, and the coating will appear too thin locally; The temperature of the galvanizing bath is low; 6. The corrosion of metal stamping parts will reduce the hydrogen evolution potential, and the hydrogen evolution on the surface of the workpiece will accelerate the current efficiency and affect the deposition rate of zinc; 7. The sodium hydroxide content is low, and the current density decreases , Anode passivation occurs; 8. Anode passivation reduces the effective area and affects the normal distribution of current. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automotive stamping parts molds Learn more: Points to note in the design of continuous stamping dies