Optional vacuum coating machine components of

Optional vacuum coating machine components of

For vacuum coating machine, the vacuum pump their access to essential part of every manufacturer of a coating machines are manufactured with one or more pumps.

First, the choice of the vacuum pump vacuum pump vibration when you first need to pay attention to when the work produced on the process and the existence of environmental impact, if the process is affected, or alternatively, anti-vibration measures should be taken to a vacuum pump. Choose the time you need to know to be pumping gas composition, selective evacuation if needed, may be insufficient to meet the requirements of a pump, the pump must be combined with a variety of different work with each other, if coater coating requires no oil will have to use no pump.

Second, the coating machine for extreme requirements and working pressure requirements of the greater degree of vacuum, the vacuum pump for higher capacity requirements, a minimum degree of vacuum pump ultimate vacuum equipment than half the number of working vacuum level and above.

Third, each pump has a certain working pressure range, such as diffusion pump pressure of 3 ~ 10-7mmHg, its stable working pressure range of 5 * 10-4 ~ 5 * 10-6mmHg, then not allow the use of a diffusion pump in addition to its work undecided working pressure range.

Higher four, when the gas pressure of the pump is not high demand or high degree of vacuum is not required, the priority selection in a single stage pump, through the exhaust gas pressure or vacuum requirements, single pump often can not meet the requirements, the choice of two pumps or multi-stage pumps.

Fifth, one of the key pump price and maintenance costs also need to be considered.