Vacuum evaporation is a major production process in light chemical industry. Its working principle is a physical process: the evaporation rate of the solvent in the solution is related to the external resistance. Under vacuum conditions, the boiling point of the solution decreases, and the resistanc...
Abstract: as an important component of the helium mass spectrometer leak detector, the geometric parameters of the composite molecular pump not only affect the pumping performance, but also affect the detection performance of the leak detector. Based on the basic theory of molecular pump pumping, th...
The basic operating procedures for the rotary vane vacuum pump pumping system are as follows:
1) The rotary vane vacuum pump that needs to work with cooling water should be supplied with cooling water before starting the vacuum pump.
2) When the working environment temperature is too low and the rot...
