The cleaning technology of the vacuum coating machine
From: VacuumFamily.COM News Centre Add Time: 2016-2-19 11:51:00
Vacuum coating machine before use, must pay attention to cleaning and maintenance. Including vacuum, vacuum parts, etc. Before proceeding with the vacuum technology should be vacuum cleaning materials, material surface to remove pollutants from the artifacts or system; Vacuum parts surface cleaning processing also is very be necessary, because caused by pollutant gas, steam source will not only make the vacuum system cannot obtain the required degree of vacuum. And because of the existence of pollutants at the same time can also affect the strength of the joint vacuum components and sealing performance. Pollutants can be defined as "any kind of useless matter or energy", according to the physical state of pollutants can be divided into solid, gas and liquid, they exist in membrane or grain form. The chemical characteristics, it can be in ionic or covalent states, can be inorganic or organic matter. Exposed to the surface the most vulnerable to pollution in the air, there are many sources of pollution, the original pollution is usually part of the process of forming surface itself. Phenomenon of adsorption, chemical reaction, leaching and drying process, mechanical processing and diffusion and segregation are increase the components of surface contaminants. More common vacuum material on the surface of concrete has the following several types of pollutants. (1) oil, processing, assembling, when operating the lubricant and cutting fluid, vacuum oil, etc.; (2) water base classes: operating hand sweat, blowing the water vapor, saliva, etc; (3) the surface oxide: material placed for a long time in the air or placed in the damp air in the formation of the surface oxide; (4) acid, alkali, salt material: when cleaning the residual material, hand sweat, mineral water, etc.; (5) polishing residue and environmental dust in the air and other organic matter. After cleaning the surface of the divided into atomic clean surface according to the requirement and processing technology on the clean surface. Early in the work of cleaning the can reduce a lot of trouble, avoid the happening of a lot of small problems, the work efficiency and vacuum coating machine for coating quality are very positive. Can greatly improve all the wall and other components in the vacuum system operation stability of the surface under various working conditions. These working conditions include: high temperature, low temperature, and the electron, ion and photon or heavy particle emission and bombardment.
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