Dandong Dongba Lubricating Material Co., Ltd.
Post code: 118007
Email: [email protected]
Address: 108 Building Industrial Park, Zhen'an District, Dandong City, Liaoning Province
Quality change of high temperature grease
High temperature grease generally belongs to synthetic grease and contains high concentration of polytetrafluoroethylene lubricating particles. It has high temperature and pressure resistance and is suitable for high temperature heavy load equipment. This fluorine high temperature grease is specially used in high temperature, high load and chemical corrosion environments. Bearings and components that require lifetime lubrication are chemically inert, durable and low volatility. Applicable temperature range: -50 to + 280 ° C.
1. In many lubrication conditions, grease is in contact with air, and its oxidation causes the quality of the grease to vary. High temperature greases contain soap-based thickeners, which are easily oxidized, so greases are more susceptible to oxidation and deterioration than lubricating oils.
2. Generally, the grease is composed of 70% ~ 90% lubricating oil and 10% ~ 30% solid thickener. The deterioration of lubricating greases in use has an important relationship with their binding stability. As a result, the lubricating oil is separated from the system to form a so-called oil separation, which reduces the performance of the grease and loses its original lubricating effect.
3. There will be some mechanical impurities in the grease, mainly abrasive solid impurities. These mechanical impurities will greatly damage the lubrication of the machine and cause serious wear of the lubricating parts.
4. Grease will be mixed with water during the use of machinery, which will affect the structural change of the grease and reduce the lubricating performance. At the same time, water will also corrode the machine, and it will also dissolve and dilute the thickener, and reduce the thickener Ability to make the grease thin and change color.
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