湖州長興縣安吉?dú)づ茐嚎s機(jī)油-導(dǎo)軌油直營部門制冷壓縮機(jī)油有一系列特殊要求，油品與制冷介質(zhì)不斷接觸，介質(zhì)的溫度和壓力經(jīng)常變化。 廣泛用于冷凍機(jī)中的制冷劑(氨及二氧化碳)與不加劑的潤滑油不起作用(呈惰性)。因此，對于使用這種制冷劑的冷凍機(jī)可以采用深度精制的潤滑油。這種油具有足夠低的凝點(diǎn)，平緩的粘溫曲線和良好的抗氧化性能。溫度愈高，可能性就愈大。還要考慮到兩者的互溶性。此外，必須控制冷劑與潤滑油混合物對機(jī)器零件的腐蝕。 高速氨冷凍機(jī)油50℃粘度數(shù)25-35m/s，要求具有高抗磨性和低凝點(diǎn)(-38℃至-40℃。溶在油中的制冷劑會降低油的粘度，因此，油與制冷劑混合物的粘度在50℃、3-4℃×105N/mm壓力下不得低于原潤滑油的一半。制冷劑與潤滑油(不超過10%)混合物在冷凍機(jī)運(yùn)行的溫度下應(yīng)穩(wěn)定、不分層。用于冰箱壓縮機(jī)的潤滑油具有更高的穩(wěn)定性，因?yàn)槭褂弥胁豢赡苋ビ^察油的變情況并進(jìn)行更換，即油品要與電冰箱同壽命Refrigerating machine oil is subject to a series of special requirements since it is in continuous contact with the refrigerant, the temperature and pressure which are constantly changing. The refrigerants (ammonia and carbon dioxide) most commonly used in freezing machines are inert towards unadulterated lubricating oils. Consequently, freezing machines of this type an oil of high degree of refining may be used. Such oils have a sufficiently low solidifying point, a flat viscosity-temperature curve, and good-oxidation properties. The higher the temperature, the greater the possibility of this. Account must also be taken of the mutual solubility of both. Furthermore, it necessary to control the corrosive action of the mixture of refrigerant and lubricating oil upon the parts of the machine.