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Time：04.07.2024The shelf life of lubricating grease is not specified in the national standard, but its quality depends on the internal quality, and is also related to storage conditions, such as temperature, humidity and other environmental conditions. The storage temperature of lubricating grease is generally 10~25 ℃. Too high temperature will cause the thermal movement of molecules or atoms to intensify, resulting in the weak binding force of grease fibers, oil precipitation and oxidation promotion; The temperature is too low and the consistency increases, which makes it inconvenient to use. -
Time：04.07.2024Calcium base grease: good water resistance, but poor heat resistance, high service temperature: 60 ℃.. Sodium base grease: extremely poor water resistance, general heat resistance and rust resistance, generally used at about 80 ℃. -
Time：04.07.20241. Remove the old products in the system and replace them with new products. 2. The control time was reset to half of the original. -
Time：04.07.2024The reason for hard lumps in grease lubricated bearings is usually because the oil in the grease is separated from the thickener. Under normal circumstances, as time goes on, a small part of the oil will precipitate from the grease, and the premature large amount of oil precipitation of the grease will cause it to harden significantly. -
Time：04.07.2024If the machine uses lubricating oil or grease, it can be lubricated freely without difficulty. Then, we should choose the fuel-saving and economic options. Generally speaking, the heat dissipation capacity of lubricating oil is better than that of grease, the friction coefficient is small, it is convenient to add oil during use, and the oil film formed is more uniform, which are the characteristics and advantages of lubricating oil. -
Time：04.07.2024According to the lubricated mechanical components: bearing grease, gear grease, chain grease, etc; According to the industrial sector using grease; Automobile grease, railway grease, steel grease, etc; -
Time：04.07.2024Nlgi is abbreviated: National Lubricating Grease Institute refers to the national lubricating grease Research Institute [U.S.] it is an indicator to judge the soft hardness of lubricating grease. It measures the soft hardness of lubricating grease with the distance of penetration (ASTM d218) Its number is 000,00,0,1,2,3,4,5,6. The lower the number is, the softer the fat is, and the higher the number is, the harder the fat is. Generally, the number commonly used in industry is nlgi No.2 or nlgi No.3, while 0 and 1 are commonly used in central oil supply grease pumps. Usually, the choice of number is judged according to the operating environment and the way of oil supply -
Time：04.07.2024The temperature at which the lubricating grease is heated under the specified conditions to reach a certain fluidity is called the drop point, which is expressed in degrees Celsius. The dropping point of lubricating grease is only a conditional indication of the melting point of lubricating grease, so it has no physical significance. For lubricating grease with a dropping point below 100 ℃, the upper limit of the temperature at which they can work is 15% lower than the dropping point - 20 ℃. -
Time：02.22.2024The main components of lubricating grease are base oil and thickener. Mineral oil is generally used as base oil, and synthetic oil can also be used as base oil under conditions with special requirements. -
Time：02.22.20241、 Lubricating oil is a liquid lubricant used in various types of machinery to reduce friction and protect machinery and processing parts. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. Lubricating oil accounts for 85% of all lubricating materials, with a wide variety of brands. Now the annual consumption in the world is about 38million tons. The general requirements for lubricating oil are: (1) Reduce friction and wear, reduce friction resistance to save energy, reduce wear to prolong mechanical life and improve economic benefits;
