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Precautions of vacuum coating machine when in use

1. Equipment grounding must be reliable and always check the electrical conductivity of the grounding device

2. The diffusion pump and the oil booster pump must be connected with the cooling water before heating, and the pump stops working,

but the cooling water must not be cut off when the pump is shown to be cooled below 80 degrees Celsius, so as to prevent the pump core from burning down.

3. Do not contact the atmosphere under heating of the diffusion pump and oil booster pumping to avoid oxidation of pump oil. 

Post time: May-27-2020
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