Common grease

Grease can be divided into soap grease and non-soap grease according to the thickener. The following is a detailed introduction to you: The thickeners of soap base grease are commonly used metal soaps such as lithium, sodium, calcium, aluminum, and zinc. Metal soaps such as potassium, barium, lead, and manganese are also used. Non-soap grease thickeners include graphite, carbon black, asbestos and synthetic ones (such as polyurea-based, bentonite). They can be divided into general-purpose grease and special-purpose grease according to their uses. The former is used for general mechanical parts and the latter is used. Used in tractors, railway locomotives, ship machinery, oil drilling machinery, valves, etc. The main quality indicators are dropping point, penetration, ash content and moisture, etc. The indicators used to evaluate the colloid stability of grease are oil separation test, rolling bearing performance test, etc. The roller test is a test method for testing changes in consistency under rolling action. The flow test is a test method for evaluating the pumpability of grease at low temperatures.
The water spray resistance test is a test method to evaluate the resistance of grease to water washout. Colloidal stability is the performance of grease to keep colloidally stable liquid mineral oil from precipitating from the grease during storage and use. Mechanical stability refers to the grease's ability to resist changes in consistency under mechanical operating conditions. The ball bearing torque test is a test method for evaluating the low temperature performance of grease. Grease is a stable solid or semi-solid product composed of a thickener dispersed in a liquid lubricant. Additives and fillers designed to improve certain properties of the grease can be added. Grease can adhere to vertical surfaces at normal temperatures without escaping, and can work in open or poorly sealed friction parts. It has an irreplaceable holding point that other lubricants cannot replace. Generally speaking, greases with the same soap base have better compatibility. Organoclay bases are incompatible with other bases.
The above is an introduction to grease. Therefore, grease is used as a lubricating material in many parts of automobiles and engineering machinery. I believe there will be better development in the future.