As a person who frequently purchases CD-pattern screws for mobile phones, the quality of materials used for CD-pattern screws is basically the industry’s default. Why are cell phone CD pattern screws made of material? Can't carbon steel, titanium and aluminum materials work?

The CD thread screw is obviously different from the ordinary screw. It is brighter and more glossy than the ordinary screw. And it can also reflect different brilliance. This is a circle of circular grooves left by the laser head when the CD pattern is machined.

The material quality requirement of CD pattern screws is that the plasticity should be medium. We also mentioned in the last issue that if the plasticity of the material is too low, brittle cracks will develop on the surface of the etched CD pattern screws. If the plasticity is too high, the sticking effect will occur. Just like the Nianxuan sticking knife, the combination performance of the material must be changed through the vacuum heat treatment process before the CD pattern screw can be processed. Non-standard screws are indispensable industrial necessities in daily life: such as very small screws used in cameras, glasses, clocks, electronics, etc.; general screws for televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges Use large screws and nuts; transportation equipment, airplanes, trams, cars, etc., use both large and small screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important.

The surface of the screws produced by the material quality is smooth and clean, with anti-rust performance and corrosion resistance, good ductility and medium plasticity, which meets the production requirements of CD pattern screws, and the material is usually only used for cleaning surface treatment after CD pattern screws are produced. Precision screws are widely used in electronics, electrical, electrical appliances, furniture, mechanical equipment and so on. It can achieve the glossiness of the CD pattern screw we saw above.

Screws made of carbon steel have poor corrosion resistance and rust resistance, poor extension performance, high strength and low plasticity. If carbon steel is used to produce CD pattern screws, it is easy to cause etched CD patterns. There will be brittle cracks spreading on the surface of the screw. Precision screws are abbreviated as small screws, also called micro screws. They are tiny fasteners that connect product materials. They are small in shape, but they can play a key role in key parts of the hula. The effect is not as good as the material.