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Lubricant Additive Component Has Excellent Low Temperature Dispersion Performance Sep 26, 2017

Lubricant extreme pressure additives refers to the surface lubrication state, and the metal surface to form a high melting point chemical reaction film to prevent the occurrence of sintering, bite, abrasion of the additives, the decomposition products in the friction at high temperatures and metal reaction , The formation of shear stress and melting point of pure compounds than pure metal, thereby preventing metal surface bite and welding, effectively protect the metal surface. Commonly used extreme pressure additives mainly include organic chloride,Lubricant Additive Component organic sulfide and organic phosphide. Chlorinated paraffins are widely used in metal processing, but chlorinated paraffins react with heat and water to produce hydrochloric acid, lose lubrication and cause chemical wear and corrosion; in addition, due to environmental requirements of its application is also limited The Organic polysulfides such as sulfurized isobutylene are important sulfur extreme pressure additives that can effectively improve the sintering load (PD value) of the lubricating oil; but it can not significantly increase the maximum bite load (PB value) of the oil, Sulfur extreme pressure additives heavier and have a strong corrosive effect on non-ferrous metals. Organic phosphorus extreme pressure anti-wear additives mainly include acid phosphites, phosphate, phosphorothioate and so on,Lubricant Additive Component they can effectively improve the anti-wear properties of oil to improve the maximum no bite load, but can not effectively improve the oil sintering load. The authors studied the PN-type extreme pressure lubricating additive which can significantly improve the maximum no-card bite load and sintering load of oil. The effects of the extreme pressure of additives on mineral oil, polyalphaolefin, synthetic ester and polyether base oil were investigated. The effects of the content of additives on the extreme pressure performance of oil were studied, and the lubrication mechanism was analyzed.

In the late 1920s, with the development of steam turbines, there were 2,6-di-tert-butyl-p-cresol (shielded phenols), which are still the main antioxidants in industrial lubricants. At the same time, the use of hydroquinone in the transformer oil, the transformer oil service life from 3 to 12 months extended to 15 years or more, thus showing the great role of additives.

Until 1930, crankcase engine oil is composed only of base oil, without additives. To ensure proper lubrication, the oil change period is very short, ie 1 500 km or less.

as originally used to solve the problem of corrosion of copper-lead bearings, and later found that ZDDP also has excellent antioxidant and anti-wear properties, which makes ZDDP become the most popular anti-oxidation, anti-corrosion, anti-corrosion effect Additives, has been applied for more than half a century. In the early 1960s,Lubricant Additive Component non-polymerized succinimide ashless dispersant was developed and applied abroad. It has excellent low temperature dispersion performance and has a significant effect in improving low temperature sludge, thus effectively solving the problem of low temperature sludge. Succinimide dispersant and metal detergent compound also has a synergistic effect, can significantly improve the use of lubricating properties, and reduce the additive dosage, which is a major breakthrough in lubricant additive technology. The late 1960s, foreign countries have been basically the main types of internal combustion engine oil additives, namely, metal detergent, ash dispersant and ZDDP become the engine engine oil three functional additives. In the 1970s, the researchers on the one hand, the above-mentioned various types of additives for chemical structure adjustment and series of serialization, so that a single performance more features, and further study the compound effect of these additives, in order to meet the economic principles,Lubricant Additive Component Additives have better overall performance. After the 1980s, additives on the international market were sold more in the form of composite additives, the reason for this.