The function of grease is mainly lubrication, protection sealing.

  grease

  The vast majority of greases are used for lubrication, known as antifriction grease. Antifriction grease mainly reduces mechanical friction prevents mechanical wear. At the same time, it also plays a role in preventing metal corrosion sealing dust. Some greases are mainly used to prevent metal rusting corrosion. They are called protective greases. For example, some greases (such as industrial Vaseline) are specially used for sealing. These greases are called sealing greases (such as thread greases). Most greases are semisolid materials with unique fluidity.

  The working principle of lubricating grease is that the thickener keeps the oil in the position to be lubricated. When loaded, the thickener releases the oil for lubrication.

  At room temperature at rest, it looks like a solid, can maintain its shape without flowing, can adhere to the metal without sliding. When exposed to high temperature external forces beyond a certain limit, it flows like a liquid. When grease is cut by moving parts in the machine, it will produce flow lubrication, thus reducing friction wear between moving surfaces. When the cutting action stops, it can restore some consistency. The special fluidity of grease determines that it can be lubricated in parts unsuitable for lubricating oil. In addition, because it is a semi-solid material, its sealing protection function is better than lubricating oil.