What characteristics should the lubricant used for mining machinery have

According to the characteristics of mining machinery, the following requirements are put forward for the lubricating oil:

1. The volume of mining machinery and the volume of oil tank are small, the amount of lubricant installed is also small, and the oil temperature is higher when working, which requires the lubricant to have better thermal stability and oxidation resistance.

2. Because of the harsh environment of the mine, coal dust, rock dust and moisture are more, and the lubricant is inevitably polluted by these impurities, so the lubricant is required to have better anti-rust, anti-corrosion and anti-emulsification performance; the lubricant is required to have less change in its performance when it is polluted, i.e. the sensitivity to pollution should be small.

3. The temperature of the machinery of the open pit mine changes greatly in winter and summer, and the temperature difference between day and night is also big in some areas, so the viscosity of the lubricating oil is required to change with the temperature to be small, and it should be avoided that when the temperature is high, the viscosity of the oil becomes too low, so that the lubricating film cannot be formed and the lubricating effect cannot be played, and the viscosity should be avoided that when the temperature is low, it is too high, so that it is difficult to start and run.

4. For some mining machinery, especially in the mines prone to fire, explosion accidents, some machinery, require the use of good anti-combustion lubricant (anti-combustion liquid), can not use combustible mineral oil.

5. Require the lubricant to be well adapted to the seal, so that the seal will not be damaged.

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