Electroplating Precision Automotive Parts
Custom Plating Precision Automotive Parts
There are three main types of electroplating classification for automotive parts:
1. Protective decorative coating: This type of coating is designed to enhance the appearance of the car while providing necessary protection. For example, car logos, radiator grilles, bumpers, etc. all use this type of coating.
2. Protective coating: It is mainly used to enhance the corrosion resistance of parts. Zinc plating, cadmium plating, lead plating and their alloys are common protective coatings, among which zinc plating accounts for a large proportion in automotive electroplating.
3. Functional coating: This type of coating has specific practical functions, such as improving weldability, repairing part dimensions, improving conductivity or self-lubrication, etc.
Electroplating Precision Automotive Parts
Protective electroplating processing has extremely high requirements for the corrosion resistance of parts, and mainly includes processes such as zinc plating, cadmium plating, lead plating, zinc alloy and lead alloy. Among them, the zinc plating layer occupies a pivotal position in automotive electroplating processing, and its coverage area accounts for about 70%-80% of the total area. For example, zinc plating of stamping parts and lead and lead alloy plating of battery parts are typical protective electroplating processing applications.
With the increasing requirements for corrosion resistance, zinc alloy coating has gradually become an important development direction in automotive electroplating. This coating not only has excellent corrosion resistance, but also meets the automotive industry's requirements for beauty and durability, so it has been widely used and paid attention to.
Electroplating Precision Automotive Parts
Functional electroplating processing is also widely used in the automotive industry. For example, tin plating, copper plating or lead-tin plating can improve the welding performance of the part surface; iron plating or chromium plating can repair the size of the part; silver plating can improve the conductivity of the metal; lead-tin plating or lead-tin-copper plating can help improve the running-in and self-lubricating performance of the bearing; and copper plating can effectively prevent the occurrence of carburization. In addition, it also includes steel oxidation, aluminum and aluminum alloy oxidation, mold electroplating, plastic electroplating, metal surface coloring, hot stamping vacuum sputtering and other processing technologies
