Complete Surface Treatment! Which materials are suitable for different surface treatments? Which products are commonly used?（2）

4  electroplate

Electroplating is a process that uses electrolysis to attach a layer of metal film to the surface of parts, so as to prevent metal oxidation, improve wear resistance, conductivity, reflectivity, corrosion resistance and improve aesthetics. Many coins are also plated on the outer layer.

Advantages: high glossiness, corrosion resistance

Typical applications: surface treatment of vehicles, consumer electronics, furniture, jewelry and silver

Applicable materials:

1. Most metals can be plated, but different metals have different levels of purity and plating efficiency. Among them, the most common ones are: tin, chromium, nickel, silver, gold and rhodium (rhodium: a kind of platinum, extremely expensive and can maintain high brightness for a long time, which can resist most chemical substances and acids. It is most commonly used for products requiring high surface gloss, such as trophies and medals).

2. The plastic most commonly used for electroplating is ABS, because ABS can withstand the electroplating high temperature of 60 ° C (140 ° F), and its electroplated coating and non electroplated coating have high bonding strength.

3. Nickel metal should not be used for electroplating products that contact skin, because nickel is irritating and toxic to skin.

5 anodic oxidation

Anodic oxidation is mainly the anodic oxidation of aluminum, which is to generate a layer of Al2O3 (aluminum oxide) film on the surface of aluminum and aluminum alloy by using the electrochemical principle. This oxide film has special characteristics such as protection, decoration, insulation, wear resistance, etc

Advantages: the oxide film has special characteristics such as protection, decoration, insulation, wear resistance, etc

Typical applications: mobile phones, computers and other electronic products, mechanical parts, aircraft and automobile parts, precision instruments and radio equipment, daily necessities and architectural decoration

Applicable materials: aluminum, aluminum alloy and other aluminum products