This article will take an in-depth look at protective additives in lubricants, including their types, functions and methods of addition, while emphasizing the importance of correct use. By understanding this, we will better understand how these key components in lubricants provide efficient protection for our machinery and equipment.
Basic concepts of lubricants and protective additives
Lubricating oil is a liquid medium designed to reduce friction and wear. It is mainly used in various types of mechanical equipment to lubricate, cool, clean and prevent corrosion. A protective additive is a specific chemical substance designed to improve the performance of the lubricant and make it more suitable for various harsh working environments.
The role of protective additives in lubricating oils
Protective additives mainly play the following roles in lubricants:
Engine Protection: Many protective additives have antioxidant properties that extend the life of the lubricant and prevent excessive engine wear.
Reduce wear: By adding additives with anti-wear properties to the lubricating oil, a protective film can be formed on the friction surface to minimize wear.
Improved durability: Certain protective additives can enhance the durability of lubricants, allowing them to maintain good performance in harsh environments such as high temperatures and pressures.
Types of protective additives
Common protective additives include the following categories:
Detergent: Mainly used to remove carbon deposits and dirt to keep the engine clean.
Dispersants: Help disperse contaminants in the lubricant and prevent them from settling and accumulating.
Anti-wear agent: can form a protective film, reduce the friction coefficient and reduce engine wear.
Viscosity-temperature agent: It can improve the viscosity characteristics of lubricating oil so that it can exert good lubrication effect under various temperature conditions.
Pour point depressant: lowers the freezing point of lubricating oil so that it can still maintain fluidity and lubrication performance in low temperature environments.

Precautions
When using protective additives, you need to pay attention to the following points:
Brand selection: Choose a regular brand to ensure the quality and performance of the additives. Do not use products from unknown sources or of unreliable quality.
Accurate dosage: add according to the recommended proportion to avoid overdose. Excessive amounts of additives may have negative effects on mechanical equipment.
Co-use: If other additives or chemicals need to be used with mechanical equipment during use, be sure to consult professionals to ensure that there will be no adverse effects on the equipment.
Summary
Protective additives in lubricants play an important role in maintaining the normal operation of mechanical equipment, improving equipment efficiency and extending service life. Proper selection and addition of protective additives can significantly improve equipment operating performance and stability. Therefore, it is of great significance for the majority of mechanical equipment owners to understand and master the relevant knowledge of protective additives. With the continuous advancement of science and technology, the development and application of protective additives will also face more opportunities and challenges. In the future, we look forward to the emergence of protective additives that are more efficient, more environmentally friendly, and more adaptable to various complex environments, providing more comprehensive and better protection for mechanical equipment.

