What is the surface treatment for aluminum alloy die casting parts with good wear resistance?

Views: 337 Author: Site Editor Publish Time: Origin: Site

Aluminium alloy die casting parts are mechanical parts with low manufacturing cost, strong plasticity and light weight. Surface treatment is critical to its performance and service life. In surface treatment, it is very important to improve the wear resistance of aluminium alloy die castings.

The following are several surface treatments that can improve the wear resistance of aluminium alloy die castings:

1. Anodic oxidation

Anodic oxidation is one of the most commonly used surface treatment methods to improve wear resistance of aluminium alloy die castings. It increases hardness and wear resistance by forming an oxide film on the surface of aluminium alloy. The oxide film has good corrosion resistance, insulation and decoration property, and can increase the surface roughness of the die casting and improve the lubricity.

Anodic oxidation

2. Electroplating

Electroplating is another commonly used surface treatment method to improve wear resistance of aluminium alloy die castings. It can form a metal or alloy coating on the surface of aluminium alloy, thereby increasing its surface hardness and wear resistance. For example, the wear resistance of aluminium alloy die castings can be effectively improved by using nickel, chromium, cobalt and other materials to electroplate.

Electroplating

3. Spraying

Spraying is a simple and feasible surface treatment method for improving wear resistance of aluminium alloy die castings. It can form a coating layer on the surface of the aluminium alloy, thereby preventing the aluminium alloy from directly contacting the outside environment, making it more durable. For example, polyurethane, epoxy resin and other materials can effectively improve the wear resistance of aluminium alloy die castings.

Spraying

4. Grinding

Grinding is a method of treating the surface of aluminium alloy die castings by cutting and polishing. It can remove the defects of unevenness, concavo-convex and burr on the surface of aluminium alloy, thereby increasing the surface hardness and wear resistance. In addition, grinding can improve the surface quality and aesthetics of aluminium alloy die castings.

Grinding

To sum up, surface treatment methods such as anodic oxidation, electroplating, spraying and grinding can effectively improve the wear resistance of aluminium alloy die castings and prolong their service life.

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