The coating field of pvd coating machine is a large branch of vacuum applications. It has a very wide range of applications in many aspects such as optics, flexible materials, physical and chemical instruments, decoration, machinery and surface treatment technology. With the development of the times, the development of science and technology, life With the continuous improvement of the level, the surface treatment technology of pvd coating machine has become even more important.

Vacuum coating technology, simply understood, is to use evaporation, sputtering and subsequent condensation to coat metal, glass, ceramics, semiconductors, plastic parts and other objects with metal films or coatings in a vacuum environment. Compared with traditional coating methods, vacuum coating application is a kind of dry coating. Its main methods include the following:

Vacuum evaporation
The principle is to use an evaporator heating belt to evaporate substances under vacuum conditions, causing them to vaporize or sublimate. The evaporation ion flow is directly directed to the substrate, and a solid film is deposited on the substrate.

Sputter coating
Sputtering coating is under vacuum conditions, a 2000V high-voltage electricity is connected to the cathode to stimulate glow discharge. Positively charged argon ions impact the cathode, causing it to eject atoms. The sputtered atoms are deposited on the substrate through an inert atmosphere to form a film layer. .

Ion plating
That is, the vacuum ion plating that has been introduced by dry screw vacuum pump manufacturers. It is developed on the basis of the above two vacuum coating technologies, so it has the process characteristics of both. Under vacuum conditions, gas discharge is used to partially separate the working gas or evaporated material (membrane material), and the evaporated material or its reactants are deposited on the surface of the substrate under ion bombardment. During the film formation process, the substrate is always bombarded by high-energy particles and is very clean.

Vacuum roll coating
Vacuum roll coating is a technology that uses physical vapor deposition to continuously coat a flexible substrate to achieve some functional and decorative properties of the flexible substrate.