What are the surface finish for precision metal parts processing?

When it comes to the treatment of metal surfaces, the first thing that comes to mind is electroplating. In this article, we will learn electroplating together.

In industrial design, we often use electroplating technology. First, let’s understand what electroplating is.

Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals through the principle of electrolysis. This is the process of using electrolysis to attach a metal film to the surface of a metal or other material to prevent metal oxidation (such as rusting) and improve wear resistance, electrical conductivity, and reflectivity. Enhanced corrosion resistance (copper sulfate, etc.) and aesthetics.

Electroplating is divided into specific processes such as copper plating, gold plating, silver plating, chrome plating, nickel plating and zinc plating, especially in the field of industrial design, zinc plating, nickel plating and chrome plating are the most widely used. Is there necessarily a difference between them?

1.Galvanized

Definition: Galvanizing refers to the surface treatment technology of coating a layer of zinc on the surface of metal, alloy or other materials to make it beautiful and rust-proof.

Features: low cost, general anticorrosion, silvery white.

Scope of application: 3C product requirements, etc.

2.Nickel plated

Definition: Nickel plating is a method of electrolytic or electroless nickel plating of metals or certain non-metals.

Features: beautiful, decorative, high price, slightly complicated craftsmanship, silver and yellow colors.

Scope of application: electronic products, copper parts, etc.

3.Chromium

Definition: Chrome is a silver-white metal with a bluish tinge. It is electrolytically or electrolessly plated with a layer of chromium on metal or certain non-metals. This is called chrome plating.

Features: There are two kinds of chrome plating, one for decoration, bright appearance, good wear resistance, rust resistance is not as good as galvanized, stronger than oxidation; it is to increase the hardness and wear resistance of metal parts.

Application: Bright decorative parts and decorative seams on household appliances, electronics and other products.

Expand knowledge:

If the purpose is to prevent rust, 3 zinc or cadmium plating can be used. If the focus is on preventing wear, nickel or chrome plating is the best choice.