Lubricant substitution mixed selection principle
First, the substitution of lubricating oil must first emphasize that the correct choice of lubricating oil, to avoid substitution, is not allowed to use. However, in actual use, it will encounter the equipment that can not buy the proper lubricating oil, the new trial production (or introduction), the corresponding new oil product trial production or production has not kept up, it needs to be solved by the lubricant, the substitution principle Basically the same as the principle of oil selection, the specific requirements are as follows: (1) Try to use similar oils or oils with similar properties and similar additive types. (2) The viscosity should be equivalent, and it should not exceed 25% of the viscosity of the original oil. In general, a slightly larger viscosity oil can be used instead, and the hydraulic oil for the machine tool and the spindle oil are slightly lower in viscosity.