Notices of Tungsten Heater for Vacuum Coating Machine

The process of vacuum coating is used to modify a surface by evaporating a coating material with tungsten heater under vacuum and condensing it on the surface. It is normally carried out under high vacuum conditions. The material to be evaporated is heated until its vapor pressure appreciably exceeds the residual pressure within the vacuum system. Notices vacuum coating machine are as follows:

1. The equipment should always be kept clean, especially the parts inside the bell, it should be regularly cleaned with NaOH solution and without any dust and impurities and oil.
2. Operators who have not been training cannot be allowed operate the equipment alone. Coating machine operator must be strictly enforced operating procedures. Operators should understand that if there is an error of operation sequence, it may result in damage to equipment parts.
3. Machine must be cooled with water before opening the diffusion pump. Cooling water better use treated demineralized water to prevent fouling of circulating water pipeline, influencing the water cooling effect.
4. PVDF film gilded metal electrode can be made without baking program. Do not buy this section when ordering coater.
5. When turning the regulator hand wheel, the action should be slow, it is not allowed to use the quick movement operating mode, because the mobile brushes is easy to break.
6. When bell lift, operators should pay attention to the safety, they are not allowed to use hammers to hit faying face of the bell, in order to prevent scratches and impact marks, thereby affecting the combination effect between bell and faying face.
7. Pay attention to check the amount of lubricating oil pump regularly, timely make up the oil. Diffusion pump should be fuel filling.
8. The overhaul of pump should be operate by experienced maintenance fitter, and it is not allowed to knock the parts by hammer when disassemble them. And lubricating oil must be filtered before injected into the pump body.

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