丽水龙泉莲都区美孚齿轮油-压缩机油销售处

　　1、 黏度

　　合适的黏度能使压缩机在工作温度和压力下起到良好的润滑、冷却和密封作用，保证压缩机的正常运转。在动力润滑的条件下，油膜厚度随油品的黏度提高而增加，但摩擦力也随油品黏度的提高而增加。黏度过低的润滑油不易形成足够强的油膜，会加速磨损，缩短机件的使用寿命。反之，润滑油黏度过高，会加大内摩擦力，使压缩机的比功率增大，以致增大功耗和油耗，也会在活塞环槽内、气阀上、排气通道内等处形成沉积物。在保证润滑的前提下，适宜的黏度对于节能和压缩机的可靠运行有着很重要的影响。

　　2、黏温性

　　喷油内冷回转式空气压缩机在工作过程中反复被加热和冷却。因此，要求油品黏度不应由于温度变化而有太大变化，应具有良好的黏温性。

　　3、闪点

　　闪点表示油品在大气压力下加热形成的蒸气压力，达到用明火点燃的下极限浓度时的温度。闪点过高，油品馏分就重，黏度也大，沥青质等含量就高，使用时易积炭。若片面追求高闪点的压缩机油，反而会成为不安全因素。所以，压缩机油的闪点要求适宜即可。Appropriate viscosity can enable the compressor to provide good lubrication, cooling, and sealing at operating temperature and pressure, ensuring the normal operation of the compressor. Under the condition of dynamic lubrication, the thickness of the oil film increases with the viscosity of the oil, but the frictional force also increases with the viscosity of the oil. Lubricating oil with low viscosity is not easy to form a strong enough oil film, which will accelerate wear and shorten the service life of the components. On the contrary, if the viscosity of the lubricating oil is too high, it will increase the internal friction force, increase the specific power of the compressor, and thus increase power consumption and fuel consumption. It will also form deposits in the piston ring groove, valve, exhaust passage, and other places. On the premise of ensuring lubrication, appropriate viscosity has a significant impact on energy conservation and reliable operation of compressors.