工业润滑油使用中常见问题(国外英文资料).doc

工业润滑油使用中常见问题(国外英文资料) 1. What are the causes of hydraulic oil particle contamination? What harm does it have? What are the ways to prevent it? (1) reasons Hydraulic oil particulate pollution caused by two: One is brought into the outside, and two is generated during the course of work. See table below Exotic 1, through the fuel tank blowhole, the dust into the atmosphere 1, through moving parts wear metal particles produced by powder 2, transportation, storage and transportation process of mixing 2, hydraulic oil chemical changes caused by sludge, precipitation and so on 3, the hydraulic system components exist in 3, seal, gasket and hydraulic oil is not suited to the resulting (2) harm A bonded, clogged filter, servo valve hole B increases wear of pumps and moving parts C accelerates the aging of oil D blocks oil absorption strainer to cause cavitation in the pump (3) prevention measures A the tank is well sealed, dustproof, or fitted with a breather hole for the air filter B product oil storage and transportation process must be dustproof, waterproof C system must be equipped with filtration device, timely removal of contaminated particles, it is best to use a filter with indication signal, the bottom of the tank is best equipped with magnetic trap. D installation and regular inspection, cleaning pump suction strainer. E put a protective cover in the cylinder and push rod seal, or blow dust. 2, the same viscosity mineral hydraulic oil can be free to use each other? Can not. Because of the same viscosity, the species is very different. Requirements for high voltage system of antiwear hydraulic oil, can not use L-HH or L-HL instead of oil or it will cause the equipment to pump scrapped prematurely and operation failure, in L-HV and L-HS oil hydraulic system in cold region requires the use of nor with the same grade L-HM oil to substitute, otherwise may cause difficult cold start etc.. Two gear oil problems and Solutions 1. What are the main forms of gear failure? Th