The purpose of anti-wear additives in lubricating oils is to reduce friction and wear between metal surfaces. These additives form a protective film on the surface, preventing direct metal-to-metal contact and minimizing wear.
In modern industrial production, equipment wear and loss are important factors affecting production efficiency and costs. In order to reduce wear and tear and increase the service life of equipment, many manufacturers choose to use anti-wear additives. So, what exactly does choosing an anti-wear additive do?
Anti-wear additives are additives specifically used in lubricants. Their main function is to improve the anti-wear properties of lubricants and effectively reduce equipment wear and loss. In practical applications, anti-wear additives mainly have the following functions:
- Improve lubrication effect:Anti-wear additives can significantly improve the lubrication effect of lubricants and reduce the friction coefficient between equipment surfaces, thereby effectively reducing equipment wear. This is particularly important for many high-load, high-speed equipment.
- Enhance antioxidant properties:Anti-wear additives also have the function of enhancing oxidation resistance, which can effectively protect equipment from oxidative corrosion in harsh environments such as high temperature and high pressure, thus extending the service life of equipment.
- Repair worn surfaces:Some ingredients in anti-wear additives can penetrate into the surface of the equipment and form a protective film to repair and fill the surface of the equipment and reduce the degree of equipment wear.
- Prevent adhesive wear:Under certain circumstances, friction on the equipment surface may lead to adhesive wear, which may even lead to equipment scrapping in severe cases. Some ingredients in anti-wear additives can prevent the occurrence of adhesive wear, thereby effectively extending the service life of the equipment.

The main functions of anti-wear additives include:
- Form a protective film: Anti-wear additives react with the metal surface to form a protective film that acts as a barrier between surfaces. The film reduces friction and protects against wear and damage, especially under high-pressure conditions.
- Reduce friction: Anti-wear additives reduce friction between moving metal surfaces by forming a lubricating film. This reduces energy loss, heat generation and wear, thereby increasing efficiency and performance.
- Boundary lubrication: Anti-wear additives are particularly effective under boundary lubrication conditions where the lubricating film is very thin or non-existent. They provide a protective layer that prevents metal-to-metal contact and minimizes wear in such situations.
- Compatibility with other additives: Anti-wear additives need to be compatible with other lubricant additives, such as detergents, dispersants, antioxidants, viscosity improvers, etc. Compatibility ensures the lubricant works effectively and delivers the required performance benefits.
- Thermal stability: Anti-wear additives should have good thermal stability to withstand high operating temperatures without decomposing or losing their effectiveness. This is important for applications under high temperature conditions, such as automotive engines.
- Suitability for specific applications: Different anti-wear additives may have specific properties that make them suitable for certain applications or equipment types. For example, some additives may be better suited for hydraulic systems, while others may be designed for gear lubrication.
In general, choosing anti-wear additives can effectively improve the lubrication effect of equipment, enhance oxidation resistance, repair worn surfaces, prevent adhesive wear and other functions. Therefore, in actual production, manufacturers can choose appropriate anti-wear additives according to specific needs to achieve the purpose of increasing the service life of equipment and reducing production costs.
Choosing the right anti-wear additive is critical to improving the service life and performance of lubricated components. Factors such as equipment type, operating conditions and specific wear mechanisms should be considered when selecting the appropriate additive.

