Vacuum Coating Machine Vacuum Coating Machine Manufacturer Vacuum Coating Equipment Process Cleaning

The vacuum material should be cleaned before the vacuum process of the vacuum coating machine to remove pollutants from the surface of the workpiece or system material; the surface cleaning of the parts of the lamp coating machine is also necessary, because the gas and vapor sources caused by pollutants are not only It will make the vacuum system unable to obtain the required vacuum degree. Moreover, due to the presence of contaminants, it will also affect the strength and sealing performance of the vacuum component connection.

Vacuum coating machine pollutants can be defined as "any kind of useless substance or energy", multi-arc ion coating machine can be divided into solid, gas and liquid according to the physical state of pollutants, they exist in the form of film or granular. In terms of its chemical characteristics, it can be in an ionic or covalent state, and can be inorganic or organic.

The surface of the vacuum coater exposed to the air is most susceptible to contamination. There are many sources of contamination. The initial contamination is usually part of the formation process of the surface itself. Adsorption phenomena, chemical reactions, leaching and drying processes, mechanical treatments, and diffusion and segregation processes all contribute to increased surface contamination of various components. The more common types of contaminants on the surface of vacuum materials are as follows.

①Grease: lubricants, cutting fluids, vacuum greases, etc., which are contaminated during processing, assembly, and operation;

②Water-based: hand sweat during operation, water vapor during blowing, saliva, etc.;

③Surface oxide: the surface oxide formed by the material being placed in the air or placed in humid air for a long time;

④Acid, alkali and salt substances: residual substances during cleaning, hand sweat, minerals in water, etc.;

⑤Polishing residue and dust and other organic matter in the ambient air.

According to the requirements, the cleaned surface of the vacuum coating machine can be divided into two categories: atomic-level clean surface and process technology clean surface.

The cleaning work in place in the early stage of the vacuum coating machine can reduce a lot of trouble, avoid the occurrence of many small problems in the sputtering control sputtering coating machine, and have a very positive effect on the work efficiency and the coating quality of the vacuum coating machine. It can greatly improve the working stability of all vessel walls and other component surfaces in the vacuum system under various working conditions. These operating conditions include: high temperature, low temperature, and the emission and bombardment of electrons, ions, photons or heavy particles.