Commonly used beryllium copper cleaning methods
Release time:
2024-06-19
Beryllium copper in heat treatment, the surface often produces oxide film. Before further plating and welding processes beryllium copper oxide film must be removed, commonly used beryllium copper cleaning methods are as follows:
Beryllium copper in heat treatment, the surface often produces oxide film. Before further plating and welding processes beryllium copper oxide film must be removed, commonly used beryllium copper cleaning methods are as follows:
Disperse beryllium copper into 20% dilute sulfuric acid and heat it to 50-90 degrees Celsius, the oxide film will be removed in a few minutes, if time permits, it can also be immersed into the solution at room temperature for one night, because the oxide film caused by grease contamination can not be removed by pickling, so degreasing is required before hardening is carried out.
Degreasing:Any grease on the surface of beryllium copper alloy will cause surface stains or affect the effect of heat treatment, plating and welding in the later sequence, once the stamping oil is used in the stamping, it must be degreased after stamping, if the chlorine or sulfur content in the stamping oil is high, the degreasing method should be carefully estimated or avoid the use of this type of stamping oil.
Anti-corrosion:Benzotriazole is often used to prevent air-caused discoloration of beryllium copper alloys, it forms divalent copper on the surface of beryllium copper copper alloys benzotriazole, insoluble in water and other solvents of the properties of the plating, it does not have an impact on the pretreatment process of plating, because it is sublimated at 100 degrees Celsius or at a high temperature so that it does not have any effect on the age-hardening treatment.
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