Vacuum coating machine is used in decoration field. It is the most common coating machine in daily life, and it is also the most conventional coating machine. Basically, the manufacturers of coating machines all produce decorative vacuum coating machines, vacuum coating machines for decoration applications and others. Compared with the vacuum coating machines in the industry, relatively speaking, the cost will be low and the application is very wide.
Part of the vacuum coating machine in the decoration field adopts the vacuum evaporation coating method. Vacuum evaporation is the process of placing the substance to be formed into a film in a vacuum for evaporation or sublimation, so that it is deposited on the surface of the workpiece or substrate. It is to heat the raw material to be formed into a thin film in an evaporation container in a vacuum chamber to make its atoms or molecules vaporize and escape from the surface, and form a vapor stream incident on the surface of a solid (called a substrate or substrate) to condense to form a solid thin film. Regarding the shape of the evaporation source, it can be made into different forms and different evaporation source materials according to the properties of the evaporation material and the wettability of the evaporation material. There are three layers of vacuum evaporation: primer layer (6~12um) + coating layer (1~2um) + topcoat layer (10um) pre-assembly treatment. Wipe the impurities and dust on the surface of the substrate with a cloth to improve the spray yield. The base material is assembled on a special hanger to be fixed on the assembly line, and the appearance and function are masked according to the design requirements.
The other part uses vacuum sputtering, which usually refers to magnetron sputtering, which belongs to the high-speed low-temperature sputtering method. The inert gas (Ar) is filled in the vacuum state, and a high-voltage direct current is added between the cavity and the metal target (cathode), and the electrons generated by the glow discharge (glow discharge) excite the inert gas to generate argon positive ions, positive ions Moving towards the cathode target at high speed, the atoms of the target are blasted out and deposited on the plastic substrate to form a thin film.
Vacuum coating machine Coating machine bombards the solid surface with high-energy particles (usually positive ions accelerated by an electric field). The sputtered atoms (or atomic groups) have a certain energy, and they can redeposit and condense on the surface of the solid substrate to form a thin film. Vacuum sputtering requires inert gas to be filled in the vacuum state to realize glow discharge, and this process requires the vacuum degree to be in the state of molecular flow. Vacuum sputtering can also be directly sputtered without primer according to the characteristics of the substrate and target. The coating layer of vacuum sputtering can be added by adjusting the current size and time, but it should not be too thick, and the general thickness is 0.2~2um.