【文章內(nèi)容簡介】 echanical engineering applications more, the greatest power 700HP about output about 70,000 Taiwan. Oil machinery applications less power to 1500HP. Diesel applications less power up 3000HP. Nien transmission fluid is a liquid transmission doors emerging disciplines in the country are still at an infancy stage. Because liquid Nien transmission products (such as fluid mechanics using Nien) and hydraulic transmission products (such as governorhydraulic coupled device) Notwithstanding the different nature, but because of similar performance and the same purposes (governor energy), in a number of technical activities (such as the formulation of development plans, standards, technology management, orders, and other activities) are regarded as the same type, with the hydraulic industry monalities, it is another chapter on the work of its product mix and transmission oil. Firstly, the performance characteristics of the oil and hydraulic transmission hydraulic transmission oil development not only as a transmission medium for work, but also to provide lubrication bearings and gear while the carrier is further bad fever, heat away. Hydraulic transmission oil is a plex and require specialized research topics, which is directly related to the reliability of hydraulic ponents, transmission efficiency and service life. Should arouse the attention of extensive indepth study. Hydraulic transmission oil should meet the following requirements: First. A suitable lowviscosity liquid viscosity, liquid indicate friction within small, mobile resistance small loss may reduce hydraulic ponents hydraulic losses。 But lubricant sealed perspective, the viscosity can not be too low. Provide lubrication and therefore should meet the requirements of sealed premise as a lowviscosity liquid to improve hydraulic ponents transmission efficiency. Wen Xing Nien also called liquid than for the hightemperature or lowtemperature, and still maintain an effective lubricant sealed. Secondly. A greater emphasis on the hydraulic ponents for the moment and the power transmission and liquid working for the redirect, it is liquiddegrees the higher the better. Thirdly. The performance can have a stable bubble, aging and sedimentation. Fourthly. Suanzhi sealed pieces to be neutral to low, and a good patibility, not dwell inflation, not dissolved the noncorrosive metal. Fifthly. A higher flash point and lower congeal point hydraulic ponents work Youwen change significantly, sometimes up to 160 degrees, and therefore require flash point higher than 180 degrees, and congeal point lower than 20 degrees, lowtemperature environment for the benefit of the startup of hydraulic ponents. Sixthly. A good lubricant performance liquid sufficient greasiness to the good parts in the surface material, a good lubricant. At present, and hydraulic transmission applications work more liquid types, among all oilbased products, has used the water or other liquid Nanran (coal mine explosion and fire in defense applications). Domestic hydraulic ponents monly used 6th hydraulic transmission oil (also useful 8th hydraulic transmission oil), and sometimes to 22 turbine fuel substitution. Diesel oil is dedicated to the life of not less than 2,000 hours and for the initial operation of new equipment installed oil after 100 hours and 500 hours of the first, second formula, can still be used after the filter. Is one of the following situations, the need to replace the new oil : Water content greater than %。 50 degrees in the new oil viscosity higher than 6% mounted。 Mechanical impurities (benzene Burong objects) to reach %。 A high lipid intake or Suanzhi。 Excessive bubble effects transmission power. More art