The physical and chemical properties of lubricating grease mainly refer to the appearance, consistency, corrosion effect on metal and compatibility with synthetic rubber of lubricating grease.

Detecting the appearance of lubricating grease can preliminarily distinguish various types of lubricating grease and preliminarily judge the quality of lubricating grease;

Detecting the consistency of lubricating grease can judge the degree of softness and hardness of lubricating grease, initially understand the anti-dry film agent white grease extrusion and anti-shear ability, and can reflect the difficulty of grease flowing under the action of external force;

Determining the corrosiveness of lubricating grease is to investigate whether the lubricating grease has a corrosive effect on metals;

To determine the compatibility and swelling between grease and synthetic rubber, the compatibility of grease with rubber parts can be evaluated according to the changes in volume and hardness of synthetic rubber before and after the test;

Determining the contact resistance value of grease can evaluate the effect of grease on the change of contact resistance.

Analysis and evaluation methods include: visual inspection method for appearance evaluation, GB/T269 "Determination of penetration of grease and oil" Hecheng special grease, GB/T7326 "Grease copper corrosion test method", SH/T0331 "Grease corrosion Test Method", SH/T0429 "Determination of Lubricating Grease and Synthetic Rubber Compatibility Fokker Special Grease Method", SH/T0691 "Lubricant Synthetic Rubber Swellability Determination Method" and SH/T0596 "Grease Contact Resistance Determination Method"