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The role and effectiveness of antifreeze


A, with antifreeze function water freezing point is 0 ° C, the freezing point of antifreeze can generally be lower than -25 ° C. In the cold winter parking, to prevent the coolant from freezing and cracking the radiator and freezing engine block.

Second, the boiling point of antifreeze is higher than that of water, and boiling point is the temperature at which the liquid boils. Under standard atmospheric pressure, the boiling point of water is 100C, while the boiling point of antifreeze is higher than 106°C, which can effectively prevent the engine from “boiling” phenomenon.

Third, with anti-corrosion function because the engine cooling system, including steel, aluminum, cast iron, copper and water tank welding with solder and other metals, cylinder block and cylinder head generally made of cast aluminum or cast iron, water tanks are mainly made of copper and brass, antifreeze long-term contact with these metals, need to be able to protect all these metals, the use of deionized water and appropriate additives can prevent a variety of corrosion.

Fourth, a certain degree of lubrication performance antifreeze with “oil”, to prevent the dissolution of non-metallic materials such as rubber, plastic, bulging, aging, etc., part of the vehicle antifreeze on the cooling system has a lubricating effect.

Fifth, to prevent the generation of scale scale is attached to the inner surface of the cooling system insoluble salts or oxide crystals, the main substances that produce scale is calcium sulfate, calcium carbonate, magnesium carbonate, etc., high-quality antifreeze using distilled water manufacturing, and add anti-scaling additives, not only does not produce scale, but also has the function of descaling.

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