Grease is a solid or semi-solid substance consisting of a lubricant and a hardening agent. It is used for the lubrication of industrial machines in industries as well as for domestic purposes. This substance is a lubricant and has an oily and greasy state.
The characteristics and quality of various types of grease depend on the type and amount of thickener, additives, characteristics of the base oil, and the production process of the grease.
Method of production
To prepare the grease, the required metal soap is first prepared from the combination of amino acid and metal alkali (lithium, sodium, or calcium) and then lubricant is added to it in a special device. Some special types of grease do not contain metal soap and bentonite mineral soil is used for thickening.
Components of grease
Oil
Thickener
additives
Usage of grease
Grease is used for lubrication in places where repeated lubrication by liquid lubricant is not possible or is not economical. (Such as the moving parts of the front of the car) unlike oils, greases cannot perform the task of cooling and cleaning.
Many driving forces cannot be used without the use of grease
Grease advantages
The number of lubrication times with grease is less compared to oil, and this reduces costs and repairs
Reducing costs and reducing consumption are other benefits of using grease
Grease acts as a barrier to the entry of dust or the exit of some materials from machines
Compared to oil, grease continues lubrication for a longer time
Grease is placed like a soft layer between parts and reduces noise and vibration and smooth operation in some devices such as large gears.
Comparison of grease and oil
Greases do not cool the devices during operation
Oils easily penetrate the channels of devices, but this issue is a weakness for greases.
Oils have better storage advantages
