Fliexible and Damping Latch materials and surface treatment
A flexible and damping latch material
When people buy flexible and damped latches, it is generally feared that the flexible and damped latches are not durable or will not be long before the surface is rusted or oxidized. The problem is related to the use of materials and surface treatment problems.
From the point of view of durability, the best material should be stainless steel, especially for surface materials, the more the more bright. Its strength is good, corrosion resistance, color unchanged. But there are many kinds of stainless steel, can be divided into ferrite and austenite. Ferritic stainless steel magnetic, flexible and damping latch known as stainless steel iron, a long time, the environment will not rust, only austenitic stainless steel will not rust, identification method is very simple, with a magnet can try Identify.
Copper is one of the most widely used flexible and damping latch materials, its mechanical properties, corrosion resistance and processing performance are good, and the color is bright, especially copper forged handle and other flexible and damping latch trim , Surface smooth, good density, no pores, trachoma. Both solid and rust, can be used to plated 24K gold or gold and other surface treatment, look magnificent, noble and generous, to the people to add a lot of color home.
Zinc alloy material, its strength and anti-rust ability is much worse, flexible and damping latches but its advantage is easy to make complex patterns of parts, especially pressure casting. The market see more complex patterns of flexible and damping latches are likely to be made of zinc alloy, consumers should be carefully identified.
Steel, good strength, low cost, but easy to rust, generally used as a flexible and damping latch internal structural materials used, not suitable for external decorative pieces.
Aluminum or aluminum alloy, ordinary aluminum alloy (except for aerospace) soft and light, flexible and damping the strength of the latch material at the end, but easy to shape.
Second, the surface treatment
Surface treatment refers to the use of metal electrodeposition (commonly known as electroplating), coating (spray), chemical oxidation (coloring) or other processing methods in the surface of the parts covered or form a protective film. The film mainly from the anti-corrosion effect, but also increase the aesthetic and product durability, is a direct measure of product quality is an important factor. Common methods of measuring surface treatment are: cover with thickness measurement, combined force inspection, salt spray and wet test, visual inspection and so on. Flexible and damping latch coating coating adhesion, hardness, moisture test and visual inspection methods.