When people buy switch cabinet door locks, they are generally worried that the switch cabinet door lock is not durable or the surface will rust or oxidize after a long time. This question is related to the materials used and the surface treatment.

From the point of view of durability, a good material should be stainless steel, especially when used as a surface material, the more you use it, the brighter it is. It has good strength, strong corrosion resistance and unchanged color. But there are also many kinds of stainless steels, which can be mainly divided into ferrite and austenite. Ferritic stainless steel is magnetic, commonly known as stainless iron, long time, bad environment will also rust, only austenitic stainless steel will not rust, the identification method is very simple, with a magnet to try to identify.

Copper is one of the widely used switch cabinet door lock materials, its mechanical properties are good, corrosion resistance and processing performance are good, and the color is gorgeous, especially the copper forged handle and other switch cabinet door lock decorations, the surface is flat, the density is good, no pores, sand holes. It is both strong and rust-proof, and can be used to plate 24K gold or placer gold and other surface treatments, which looks magnificent, noble and generous, and adds a lot of color to people's homes.

Zinc alloy material, its strength and anti-rust ability are much worse, but its advantage is that it is easy to make complex pattern parts, especially pressure casting. The more complex pattern of switch cabinet door locks seen on the market is likely to be made of zinc alloy, and consumers should carefully identify them

Steel, good strength, low cost, but easy to rust, generally used as the internal structural material of the switch cabinet door lock, not suitable for external decoration. Aluminum or aluminum alloy, ordinary aluminum alloy (except for aerospace) is soft and light, the material strength is low, but it is easy to process and form.

The surface treatment of switch cabinet door lock generally refers to the use of metal electrodeposition (commonly known as electroplating), coating (called spraying), chemical oxidation (coloring) or other processing methods to cover or form a protective film on the surface of parts. The film mainly plays the role of anti-corrosion, but also increases the aesthetics and durability of the product, which is an important factor to directly measure the quality of the product. Common methods for measuring surface treatment include: thickness measurement of overlay, adhesion inspection, salt spray and moisture test, visual inspection, etc. The coating is carried out by means of film adhesion, hardness, moisture test and visual inspection.