Lubricant additives are added to improve lubricant performance, protect mechanical equipment and improve work efficiency. Common lubricant additives include antioxidants, anti-wear agents, extreme pressure agents, improvers, viscosity index improvers, degassing and anti-foaming agents, etc.
1. Antioxidants: Antioxidants are additives that prevent lubricants from oxidation and aging. It can effectively extend the service life of lubricants, stabilize lubricant performance, and avoid lubricant acidification, deterioration and other problems.
2. Antiwear agents: Antiwear agents can reduce friction, wear and contact between abrasive particles in mechanical equipment, and reduce wear of mechanical parts. Common antiwear agents include sulfides, phosphides, etc.
3. Extreme pressure agent: Extreme pressure agent is an additive to reduce metal friction and is widely used in lubricating oils under high temperature, high pressure and heavy load conditions. It can form a protective film to effectively reduce the contact and wear of metal surfaces.
4. Improver: Improvers are mainly used to improve the fluidity and cleaning performance of lubricating oils. For example, dispersants can prevent precipitation and reduce the formation of sediments; detergents can remove dirt and sediments inside mechanical equipment.
5. Viscosity index improver: The viscosity index of lubricating oil refers to the ability of lubricating oil to change viscosity at different temperatures. Viscosity index improvers can keep lubricating oil at a relatively stable viscosity at different temperatures and improve lubrication performance.
6. Degassing and anti-foaming agent: Degassing agents can remove oxygen in lubricating oil and bubbles in the air, thereby reducing the impact of oxidation, foam and bubbles on lubricating oil performance and improving lubrication effect.
