What are the main functions of engine coolant?

Engine coolant has five major functions: cooling function, anti-corrosion function, anti-freezing function, anti-scaling function, and anti-boiling function.

<> "Cars need the support of coolant, especially in summer, once there is no help of coolant, the car engine is easy to have problems, so what are the functions of automobile coolant?

What is the role of coolant? Introduction to the role of coolant.

Coolant, as the name suggests, is cooling. To a certain extent, it is to meet the thermal cooling needs of the high-load engine, and basically only more than 105 will boil like boiling water. If it's winter, the main role of coolant becomes frost resistance.

Generally speaking, it takes between minus 20 and 45 to freeze the inside of the engine, so it is not a big problem in most parts of the country.

It is also rust-resistant. A good quality coolant can prevent rust in the cooling system, which can easily accelerate the wear and tear of the cooling system and reduce the efficiency of heat conduction.

If there is no coolant, the cooling system is susceptible to corrosion, causing coolant leakage and engine damage. To be honest, the role of coolant is very large, because daily maintenance should choose high-quality coolant, and of course, daily care should also be carried out.

The main function of engine coolant is to protect the normal and good operation of the engine, circulate in the engine water tank, play an anti-freezing, anti-boiling, anti-rust, anti-corrosion and other effects, most of the antifreeze color is red or green, in order to observe whether it leaks, or distinguish it from other engine liquids to avoid confusion.

Change the engine's coolant based on mileage or length of time, as it is difficult to visually determine the extent of its deterioration. If the coolant does not change, its intrinsic anti-rust quality will be reduced, and radiators, pipes, hoses, etc. will be damaged.

To measure the freezing point of Kaiye antifreeze; Prevent leakage when replacing antifreeze; Prevent hot antifreeze from squirting out and injuring people. It is necessary to ensure that the original antifreeze is released cleanly (both the radiator and the cylinder should be discharged); Guaranteed to be added to the standard; Do not leave the leaking part on the vehicle parts; After the process is completed, check whether there is any leakage.

In order to prevent the coolant from freezing after the car is parked in winter, causing the water tank and engine block to burst due to the freezing of the coolant, it is required that the freezing point of the coolant should be about 10 lower than the minimum temperature in the area in case of sudden weather changes. The coolant should be circulated to reduce the generation of scale as little as possible, so as not to block the circulation pipe and affect the heat dissipation function of the cooling system. To sum up, you should be cautious when selecting and adding coolant.

First of all, you should choose the appropriate ratio of coolant according to the specific situation. Second, add coolant. Add the coolant with the selected ratio to the water tank to make the liquid level reach the specified position.

Compared with the boiling point of water of 100, the coolant can withstand higher temperatures without boiling (boiling), which meets the heat dissipation and cooling needs of high-load engines to a certain extent.

Coolant, the full name should be called antifreeze coolant, which means coolant with antifreeze function, antifreeze can prevent the coolant from freezing and bursting the radiator and freezing the engine cylinder block when the coolant is parked in the cold season, but we have to correct a misunderstanding, antifreeze is not only used in winter, it should be used all year round, the normal maintenance project of the car, every year of driving, the engine antifreeze needs to be replaced.

Coolant is also known as antifreeze, mainly antifreeze, the freezing point of antifreeze in different regions is also different, followed by the boiling point, the normal water temperature of the engine is more than 80 degrees, and it will soon reach nearly 100 degrees in summer, the boiling point of antifreeze can reach 130 degrees, and finally it is anti-rust and anti-corrosion, and it is not easy to produce water quality! It is recommended to replace it in two years or 40,000 kilometers!

Automobile refrigerant is actually antifreeze, which is a chemical synthetic agent, the main purpose of which is to prevent the cooling system of the engine from freezing at low temperatures, followed by the effect of heat dissipation.

1. Anti-freezing 2, anti-boiling 3, anti-corrosion 4, anti-rust 5, anti-scale.

The main function of engine coolant is to dissipate heat from the engine and prevent freezing in winter. First, the relevant role of the engine coolant can prevent the engine from high temperature and the engine freeze in winter. Under normal circumstances, the boiling point of antifreeze should be above 115 degrees, and the related freezing point is generally about minus 40 degrees to minus 45 degrees.

Second, the relevant role of antifreeze can dissipate heat to the engine mold, and the relevant antifreeze can circulate the heat in the working state of the engine through the relevant coolant circulation system, so as to maintain the normal working temperature and optimal working condition of the engine. Third, the anti-corrosion and anti-rust ability of engine coolant is also very good, which can protect the relevant parts inside the engine. to extend the service life of the associated engine block and cylinder head.

To sum up, the role of engine coolant is very important, and it must be checked in time, and if it is lost, it needs to be replenished in time.

The role of coolant, first of all, is the role of antifreeze, and the freezing point of coolant is relatively low. Then the relevant functions are high boiling point, anti-corrosion, waterproof scale and other related functions. First, the primary role of coolant is antifreeze, generally in winter, the vehicle must add coolant, and the new car in the factory, the use of coolant, in the northeast, it is recommended to use minus 45 degrees of antifreeze, in the southern region, you can use minus 25 degrees of antifreeze.

Second, the radiator, water pump, cylinder block, cylinder head and related pipelines related to the anti-corrosion cooling system. It is mainly composed of steel parts, copper parts, aluminum parts and other related metals. If you use tap water, it is easy to produce related water shows, which will lead to blockage of related pipes or rust of related parts over time.

Therefore, the use of antifreeze can have a good anti-corrosion function. Third, the boiling point is relatively high, and the boiling point of normal antifreeze is more than 105 degrees, and most of them are oaks around 115 to 125 degrees. Because the relevant load of the vehicle engine is relatively high during normal operation, the requirements for the boiling point related to cooling are relatively high.

Automobile coolant can play the role of cooling, anti-corrosion, anti-rust, anti-freezing, and anti-high temperature gas resistance.

Prevents the vehicle from freezing when it is not started, as the antifreeze is in the cylinder. When the liquid becomes solid, the volume expands and the cylinder freezes and cracks. After the vehicle is started, the engine is cooled.

Prevent engine damage due to excessive temperature. Antifreeze can also manage rust prevention and prevent pipe clogging caused by excessive limescale. The role of coolant:

1。Coolant prevents the vehicle from freezing and cracking the vehicle's cooling system when it is parked in the cold winter, and "boiling" in the summer; 2.During the operation of automobile engines, a large amount of heat is generated in the process of converting fuel from chemical energy to mechanical energy.

The working efficiency of gasoline is about 30%, and other energy is converted into heat. 3.If this heat energy can be dissipated immediately, it will affect the normal operation of the engine.

At this point, the engine cooling system needs to start working.