Four characteristics of grinding polishing fluid during processing: the grinding and polishing machine needs to be injected into the rest to reduce the temperature when the grinding and polishing machine is carried out. The grinding and polishing fluid is lubricated and cooled, and it is necessary to improve the wear and wear of the grinding wheel and the surface finishing of the workpiece. With the integrity of workpiece surface, more requirements are needed to improve and improve the workpiece performance.

　　1、Rust prevention characteristics: to ensure that no rust, proper addition of antirust agent, need to require rust treatment, mainly for water abrasive polishing liquid, oil abrasive polishing liquid, generally will not produce corrosion problems.

　　2、Lubrication: mainly refers to the grinding and polishing liquid infiltrated into the workpiece and debris between the formation of lubricating film between the chip, this film can reduce friction, make the grinding wheel more durable, effectively prevent the deterioration of the surface roughness of the workpiece.

　　3、Cleaning effect: in a certain period of time to play the role of lubrication, wash away the debris in the hole in the debris, to prevent clogging, the lower the viscosity, its permeability will be easier, and its ability to clean the chip is stronger.

　　4、Cooling: abrasive polishing liquid can quickly absorb the heat produced in the process of grinding, reduce its temperature, maintain the accuracy of the surface of the workpiece, prevent the deterioration of the surface integrity of the workpiece and ensure the self sharpening of the abrasive particles. If the flow rate of the polishing fluid is greater, the cooling capacity will be higher and the surface temperature of the workpiece will be lower.