In winter, the climate is getting cold, especially in our province. The cold winter takes a long time. Most of the agricultural machines have no warm storage. In order to prevent the body from freezing, antifreeze can be added to the cooling system of the engine.
The common antifreeze liquids on the market are: ethanol, glycerol - ethanol, glycerol, ethylene glycol, etc. These antifreezes have different freezing points due to their different formulation ratios and compositions. The freezing point of routinely selected antifreeze should be lower than the local minimum temperature of 10°C to prevent the temperature from exceeding the icing point of the antifreeze and rendering the antifreeze liquid ineffective. Use antifreeze also pay attention to the following points:
One is to remove the scale of the cooling system before adding the antifreeze solution, and drain the residual water at a time to prevent the accumulated water from diluting the antifreeze solution and reducing the freezing and freezing point of the antifreeze solution.
The second is that when antifreeze is added, it can only be added within 95% of the capacity of the cooling system. Antifreeze has hygroscopicity and should be sealed in time after use.
Third, ethanol and ethylene glycol antifreeze all have certain toxicity. They must not touch the surface of the skin, nor can they be sucked by the mouth. Ethylene glycol is an organic solvent and should not be dripped or sprinkled on the surface of the body during filling to prevent the paint from rusting. Ethylene glycol and glycerol will reduce the volumetric volume due to volatilization. Add water in time and add antifreeze of the same type, the same type, and the same freezing point after leakage.
Fourth, ethanol, glycerol - ethanol antifreeze, the contained alcohol are volatile and flammable, pay attention to fire prevention. If the degree of alcohol is reduced by volatilization, it can be supplemented with 80% ethanol and 20% water. All kinds of different types, different types, different freezing point antifreeze can not be mixed and mixed.
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