When using copper pyrophosphate brighteners, various insoluble or undissolved solid particles in the plating solution are called mechanical impurities. When it settles on the surface of the workpiece and is enclosed in the plating layer, the plating layer is obviously rough.
How to solve the roughness caused by mechanical impurities? In the application of copper pyrophosphate brightener production, the electroplating plant not only needs to understand the introduction of such impurities to cut them off, but also timely filtering to remove. In this article, we will analyze the introduction of mechanical impurities, and hope to provide a little idea for the plating plant to solve the problem.
① Poor pickling and cleaning of workpieces before plating
When plating complex fittings, automobile and motorcycle mufflers, etc., the inside of the fittings are often not cleanly pickled, and loose corrosion is present. If you do not rinse the inside of the tubing carefully before plating with copper brightener, it is easy to introduce rust and corrosion into the plating solution. When the internal plating solution is poured out when the parts are removed after plating, internal dirt enters the plating solution.
So how to solve it? Bigely engineers suggest that ultrasonic cleaning can be used for plated parts with complex geometry and precision parts with high cleanliness requirements. Different shapes and sizes of workpieces use different cleaning methods.
② Introduction of poor water quality
When hard water is used to prepare baths, calcium and magnesium impurities in the water (which are more serious with groundwater) tend to form scale when heated (especially on the surface of the heater) and become solid impurities. When the plating solution contains F-, CaF₂ precipitation is also generated. The situation is worse if the groundwater also contains silt and sand.
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, our products are widely used to meet the plating needs of different industries and exported to many countries from all over the world. They can meet the environmental protection standard after use, mainly used in automobile parts, sanitary ware, electronic products, hardware, furniture, building accessories and other fields.
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.
