What is the working principle of vacuum coating machine?

Vacuum coating machine is an advanced surface treatment equipment. Its working principle is to use physical vapor deposition technology to uniformly deposit a thin metal film on the surface of the object to be treated under vacuum conditions, thereby changing its surface properties.
Specifically, the vacuum coating machine is mainly composed of a vacuum chamber, a recovery system, a cavity, and a power control system. The operator controls various parameters through a computer program, thereby achieving fine control of the surface. During the operation, the object to be processed is put into the vacuum chamber first, and the air in the vacuum chamber is exhausted to form a vacuum state. Subsequently, the metal material to be coated (such as copper, aluminum, silver, etc.) is heated and evaporated, and the evaporated metal substance diffuses in a vacuum, and then deposited on the surface of the object to be treated to form a metal film. During the whole working process, it is necessary to ensure the stability of the vacuum degree, and pay attention to control the temperature and the pressure of the remaining gas.
It is worth mentioning that although the working principle of the vacuum coating machine is relatively simple, the theoretical knowledge and technical content supporting its operation are huge. The use of physical vapor deposition technology for surface treatment requires in-depth research in multiple disciplines such as materials science, physics, chemistry, and electronics, and requires continuous updating of technology and equipment transformation. At the same time, for different products, it is necessary to formulate appropriate reaction conditions and deposition processes in order to meet different application requirements. Therefore, vacuum coating technology is a high-tech industry. It not only improves the quality and appearance of the product surface, but also improves the corrosion resistance and hardness of the product, and has a wide application prospect.
In short, the vacuum coating machine is a high-precision, high-reliability, high-quality surface treatment equipment. Its operation needs to fully consider the aspects of technology, design and craftsmanship, and continuously inject new impetus into modern industrial production.