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details The quality and operation method of vehicle lubricating oil are closely related to the common failures of machinery and equipment, although in the actual operation cost of the car or machinery and equipment, the cost of vehicle lubricating oil accounts for only 0.5%～1.5%, but the quality of automotive lubricating oil is not suitable for or wrong operation, is the key root cause of common failures, according to the Japanese machinery and equipment transformation and development Research Association of the company's 14 reasons caused by 700 equipment failures, 166 common failures due to poor lubrication, accounting for 25.7%, poor lubrication 92 times, accounting for 14.3%, a total of 40% related to lubrication, so good lubrication is a very important part of reducing common failures。
1. The effect of lubricating and reducing friction is to lubricate various parts of the diesel engine and produce a layer of oil film on the surface of the two to reduce friction, reduce wear, make the operation more smooth and reduce the driving force cost。
2, the cooling heat is exported to the heat generated by friction and the heat generated by ignition transmission, so that the parts maintain a moderate temperature and reduce the temperature of the diesel engine。The calorific value brought by vehicle lubricating oil refrigeration is generally 6% to 14% of the total calorific value。
3, sealing effect to assist the engine piston sealing, to avoid natural gas into the crankcase ventilation, to maintain cylinder pressure, reduce output power damage and prevent crankcase ventilation by natural gas environment pollution。
4. Cleaning and dispersing effect Cleaning piston rod carbon deposits, hazardous residues and insoluble supplies that are not fully ignited, dispersing oxidation products and sludge, so that this air pollutant prevents the lubricating surface。
5, anti-rust treatment anti-corrosion effect to avoid rust in the lubrication position, in combination with the acid and alkaline substances ignited by the material and the organic matter caused by oil air oxidation, reduce the corrosion of metal material components。
Excellent automotive lubricating oil should have the following characteristics
1, excellent viscosity temperature characteristics viscosity index value is considered for vehicle useLubricating oilThe value at which viscosity changes with temperature。The larger the standard value, the smaller the change of viscosity with temperature, and thus can be integrated into a wider range of operating temperatures。
2, low volatility In the case of high temperature operation, be sure to maintain low volatility, reduce the consumption of lubricating oil, and then reduce the frequency of adding lubricating oil。
3, cleaning dispersion according to the added cleaning liquid and thickener, prevent the accumulation of carbon in the engine piston, and reasonably avoid the engine piston stuck。
4, excellent anti-wear features to the parts to show high-quality protective film, to prevent the harsh operation of the product workpiece wear。
5, anti-foam to prevent foam in the lubricating oil and make the oil film split, and then reduce the air oxidation rate of lubricating oil, reduce the loss of lubricating oil。
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