The basis of division and the application characteristics of vacuum in technology. Physical Characteristics of Vacuum, Effective Applicability of Vacuum Acquisition Equipment and Vacuum Detection Instrument (GB3163)
Compared with the atmospheric state, the gas state in low vacuum only changes in the number of molecules, but does not change in the spatial characteristics of gaseous molecules. Molecules collide frequently with each other.
The mechanical application of vacuum in the following aspects can be realized by utilizing the pressure difference between vacuum and atmosphere.
1. Vacuum attracts and transports solids, liquids, colloids and particles.
2. Vacuum sucker lifting, vacuum medical equipment
3. Vacuum forming, replicating relief
4. Vacuum filtration.