Application Field of PVD coating Technology

With the development of economy and the improvement of living standards, people like to decorate watch cases, watch straps, clothing, lighting, indoor and outdoor glasses, hardware bags, mobile phone cases, sanitary ware, food packaging and other decorations. In life, we will see golden, cobalt copper, black and other miscellaneous bits, milling cutters, moulds and so on, these are the coating tools processed by coating technology.

Titanium alloy PVD coating has gradually become a conventional material in the field of PVD coating because of the wide application of titanium. Compared with stainless steel, the difficulty of titanium alloy PVD coating does not lie in the coating itself, but should be combined with the comprehensive evaluation of de-plating and repair. The process of de-plating of defective products is a chemical reaction process of removing film, because the price of titanium substrate is high, the process of de-plating and the chemical reaction precision of de-coating process are not the key links. The first thing to consider in the aspect of management and control is the process design of titanium alloy PVD coating.

PVD coating technology is an environment-friendly surface treatment method that can really obtain micron coating without pollution. It can prepare various single metal films (such as aluminum, titanium, zirconium, chromium, etc.), nitride films (TIN [titanium gold], ZRN (zirconium gold), CRN, TIAlN) and carbide films (TIC, TICN), as well as oxide films (such as TIO, etc.).

With the development of vacuum coating technology, there are some new technologies such as PCVD (physical Chemical Vapor deposition) and MT-CVD (medium temperature Chemical Vapor deposition). All kinds of coating equipment and coating processes emerge in endlessly. At present, there are two mature PVD methods: multi-arc plating and magnetron sputtering plating. The multi-arc plating equipment is simple in structure and easy to operate. The deficiency of multi-arc plating is that when the thickness of the coating reaches 0.3 um, the deposition rate is close to the reflectivity, so it is very difficult to form a film when the traditional DC power supply is used as the low temperature coating. Moreover, the surface of the film began to dim. Another disadvantage of multi-arc plating is that because the metal evaporates after melting, the deposited particles are larger, the density is low, and the wear resistance is worse than that of magnetron sputtering. It can be seen that multi-arc coating and magnetron sputtering coating have their own advantages and disadvantages. in order to give full play to their respective advantages and achieve complementarity, the coating machine which combines multi-arc technology and magnetic control technology arises at the historic moment. In the process, the bottom of multi-arc plating appears, and then the coating is thickened by magnetron sputtering, and finally a new method of multi-arc plating is used to achieve the final stable surface coating color.

The above titanium alloy nuts are manufactured by Baoji Peng Yuan Nonferrous Metals Co., Ltd., colored by PVD coating, and finally shipped at the agreed time!