SINCE 1994
26 years of professional grease research and development manufacturers
SINCE 1994
26 years of professional grease research and development manufacturers
This is a widely used class of additives. Commonly used additives are divided into compounds containing S, P, Cl and other elements according to their composition; inorganic and organic solid lubricants such as various heavy metal chalcogenides; various metal fillers, etc. According to its mechanism of action, it can be divided into reactive type and layered crystal lubricating type. The reactive type also includes two types of additives that react with the metal surface to form a protective film and that the additive decomposes itself to form a protective film. Generally, reactive additives should be added after the grease is cooled, so as to avoid the decomposition and failure of the additives at high temperature, and also reduce the influence of the additives on the structure and properties of the grease. Most of the fillers are layered solid lubricants, such as graphite, MoS2, etc.
2020-06
1. Calcium-based grease:Good water resistance, but poor heat resistance, the maximum use temperature: 60 ℃. Price: low.2. Sodium-based grease:Water resistance is extremely poor, heat resistance and rust resistance are average, generally used at about 80 °C, and the price is low.3. Aluminum base grease:Good rust resistance, poor heat resistance and water resistance, maximum use temperatur...
2020-06
1. Anti-rust performance of grease Anti-rust performance is used to evaluate the protection of grease to bearings in the presence of water or water vapor. Important for greases used in wet environments. The commonly used method is GB/T5218 bearing static anti-rust test: put the grease into the bearing, put the bearing in an oven at 52 ° C and a relative humidity of 100%, and observe wheth...
2020-06
(1) Detergent dispersants have four functions: solubilization, dispersion, acid neutralization, and adsorption.(2) The function of anti-oxidant and anti-oxidant and anti-corrosion additives is to inhibit the oxidation process of oil products, passivate the catalytic effect of metals on oxidation, and achieve the purpose of prolonging the use of oil products and protecting machines.(3) The role ...
2020-06
Abrasive wear: mechanical wear caused by two contact surfaces sliding against each other Additives: Small amounts of substances added to improve lubricating properties Adhesion Improvers: Additives to oils and greases to improve adhesion (eg polyisobutylene) Adhesion lubricant: Add adhesion improver to prevent the lubricant from being thrown off due to centrifugal force AF coating: anti-...
2020-06
Basic Concept of Grease(1) What is grease The latest definition of NLGI (National Lubricating Grease Institute): Grease is a solid or semi-solid product formed by dispersing one or more thickeners into one (or several) liquid lubricating oils . To improve certain properties, some other components (additives or fillers) are added.(2) Thixotropy of grease When an external force is ...
2020-06
The mixing of different greases in the use of grease is unavoidable, but it should be noted that the change in properties after mixing does not affect the use. When the sealed bearing is sealed with high-grade long-life grease at one time, it can prolong the life of the grease and prevent contamination, and avoid the trouble of regular grease, which is the most ideal. However, some bearings...
2020-05
The commonly used additives for lithium-based grease are similar to other greases, but lithium-based grease uses a wider range of additives, and it has good compatibility with many additives. Commonly used additives mainly include antioxidants, metal surface passivators, preservatives, structural modifiers, extreme pressure antiwear agents, color stabilizers, and wire drawing enhancers. 1. Ant...
2020-05
