Construction machinery magnesium forgings usually need to increase the corrosion resistance and decoration of their surface by electroplating technology, and improve their lubricity and friction properties. The following is the analysis of electroplating technology and film performance of magnesium forgings of construction machinery:
- Electroplating technology:
The commonly used electroplating technologies for magnesium forgings of construction machinery include electroplating nickel, electroplating chromium, electroplating galvanizing, etc. The main purpose of these plating techniques is to protect magnesium forgings from corrosion and improve their durability. Among them, nickel plating and chromium plating can form a dense film, which effectively isolates the contact between magnesium forgings and the external environment, and improves its corrosion resistance. Electrogalvanizing is usually used to provide rust prevention, which can form a zinc layer on the surface of magnesium forgings to prevent oxidation. - Film performance analysis:
Electroplated layer has the following properties on construction machinery magnesium forgings:
- Corrosion resistance: The electroplating layer can effectively prevent the corrosion of magnesium forgings by oxygen, moisture, acid and alkali in the external environment, improve its corrosion resistance, and extend its service life under harsh conditions.
- Lubricity: The electroplated layer can provide better lubricity during the operation of construction machinery, reducing friction and wear. In particular, the chrome-plated and nickel-plated layers have a lower coefficient of friction, which has advantages in reducing component wear and energy loss.
- Decorative: electroplating layer can enhance the decorative effect of construction machinery magnesium forgings in appearance, making it more ornamental and commercial value.
However, although electroplating technology has many advantages in construction machinery magnesium forgings, there are also some potential problems. For example, the waste water and waste gas generated in the electroplating process pollute the environment, and effective environmental protection measures need to be taken. In addition, during use, the electroplating layer may be damaged due to impact, scratches and other factors, reducing its protective function. Therefore, for the electroplating layer of construction machinery magnesium forgings, regular inspection and maintenance are needed to ensure that its performance is durable and effective.
