附件242 图Chapter2 Fndamental Hydranlic Fhnid Nechanies卷 () 101520304050 7080 0 Fig.2-3 The viscosity-temperature of homemade oils 2.1.2 The requests and choice of hydraulic oil 1.Request The oil plays two roles ofronand briction on the sfaces of working interaction The requests for the hydraulic fluids are:appropriate viscosity.the good i stabilities,compatibleith other system materials and so on 2.Choice The hydraulic oil in a hydraulic system atv0)x1m2s is generally. The hydraulic oil should be chosen in according to the request of hydraulic pump e hydraulic oil viscosity adapted for different hydraulic pumps is listed in Tab.2-.附件 24.2 11