The difference between chrome plating and galvanizing in metal plating parts

For those who have just touched the needs of electroplating parts, it is not very clear that our products need galvanization or chrome plating. We often mistakenly request galvanized products to be chrome-plated.

So what is the difference between galvanizing and chrome plating?

1. The appearance of different colors:

The surface of galvanized plated parts is a bit greenish-white, shiny but not very bright, after passivation treatment, can be made of blue white zinc, multicolored zinc, black zinc, military green and other colors

The chrome-plated surfaces are bright white and blue, and the other chrome-plated colors are black chrome.

2. The function of chrome plating and galvanized chrome is different:

The galvanizing is only plating the surface of the electroplated part with a layer of zinc metal of several micrometers to more than ten micrometers. It is an anodized coating for the iron base and has a certain degree of electrochemical protection. The galvanized parts have good rust resistance.

The chrome plating is divided into decorative chrome plating and hard chrome plating, and the chrome plating is a single chrome metal layer plating several micrometers or more than ten micrometers on the surface of the plating parts, and has excellent rubbing resistance. The decoration chrome must be plated first After the copper or nickel plating, the chromium layer is very chrome. It has the appearance and protection function. It is mainly used for processing those products with higher decoration requirements.

3. The cost of chrome plating and galvanizing is different

The cost of galvanizing is low, and the cost and cost of chrome plating are higher. The cost of chrome plating is higher than that of galvanizing from the materials used in electroplating processes and the labor used in electroplating processes and the maintenance of electroplating processes. .