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details According to the difference in structure and principle of the refrigerator, it is similar to the gas compressor, and can also be divided into several different types of piston machine, screw compressor, centrifugal fan and so on。A freezer is a compression freezing device.One of the important components。
Refrigeration oil should have excellent low pour point, good compatibility with refrigerant and reliability of heat and air oxidation。The larger use is the mineral oil type, generally using naphthenic base oil, which has low pour point, no wax, and good ultra-low temperature circulation characteristics。Some models of refrigerated oil specifications specify the selection of hydrocarbon generating oil as the base oil。
(1) lubricate the friction surface, so that the friction surface is separated by the oil film, and then reduce the friction work, friction heat and wear
(2)Refrigerating oilThe fluidity brings friction heat, so that the temperature of the friction part is maintained within the allowable range
(3) Fill the sealing position with oil to ensure the sealing characteristics and avoid the leakage of the refrigerant
(4) The fitness exercise of oil brings the abrasive dust caused by the friction of metal materials, which has the effect of cleaning the friction surface
(5) Show the driving force of the hydraulic press for the unloading mechanism
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