A, ultra-high vacuum parts of lubrication 800 km altitude pressure to about 133 x10-10 Pa < 10-10 Torr >, and aerospace machinery on ultra-high vacuum to flow in, need evaporative tiny lubricant. In the atmosphere friction coefficient is only 1-2  , and in the vacuum friction coefficient can to 10-100 or more, sometimes big enough to sintering degree. Ultra-high vacuum lubrication in, the present stage mainly with (1) gold, silver, lead and film; (2) MoS2 film; (3) PTFE composite materials; (4) MoS2, WS2 etc and metal composite materials.

B, state of switch power generator carbon brushes lubrication and tram or electric locomotive set the electrical system (friction plate and overhead wires) and friction parts charged lubrication, friction and wear easily discharge current and the influence of the arc sparks, proper lubrication can cause offline rate to decrease and prevent arc sparks. Test certificate in viscosity (40 ℃) and was the/s alkyl benzene oil wear is low (0.5, 0.30 wire board), and add 1% of the MoS 35 / s paraffin base was the oil the lowest (0.48, 0.30 wire board) and common MoS2 paraffin wax with oil skateboard and graphitization carbon brushes son. The contact point of lubrication main with graphite or graphite Ag-Pd composite material, because MoS2, WS2 are insulators and not with.

C, the lubrication extremely low temperature parts of the rocket fuel liquid oxygen (183 ℃), liquid hydrogen (253 ℃) to the combustion chamber pump by storage tank, the low temperature of pump lubrication polytetrafluoethylene add copper powder made of their lubrication bearing, of rolling bearings for 85% of MoS2 keep with PTFE + 15% glass fiber, formed in the operation of lubricant and keep lubricant transfer. Also useful WC coking tungsten) is the film. The sealing surface of MoS2 also useful.

D, underwater mechanical lubricating need MoS2, oily agent, with extreme pressure of high viscosity, adhesion agent strong sex hydrophobic and density and water resistance of similar water fat, or high viscosity mixed fat. Some fluoride density of oil more than 1 ether and can be used for underwater.

E, clean environment mechanical lubrication universe engineering , semiconductor,  telecom, atoms,intelligence, precision measurement, medical and frontier disciplines, need to clean or control dust particle size 0.1 ? m the following, or no living gas and so on, especially for semiconductor devices and requirements of high density production process of clean degree greatly improved, they have called for the low evaporation of low lubricant dust. General application of low vapor pressure fluoroalkyl gather ethyl ether oil, or polymer a fluorine polyether and thick silicon grease, alone or with contain halogen silicone oil. In the magnetic fluid sealing with lubrication bearing.



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