What is the purpose of automotive coolant?

The coolant has the effect of cooling, anti-corrosion, anti-scaling, anti-freezing and heat dissipation.

Cooling is the basic function of coolant. The engine generates a lot of heat when it works, 60% of which is dissipated into the surrounding space through the cooling system. Anti-corrosion, the radiator, water pump, cylinder block and cylinder head, water distribution pipe and other parts of the cooling system are composed of steel, cast iron, brass, copper, aluminum, solder and other metals, due to the different electrode potentials of different metals, electrochemical corrosion is easy to occur under the action of electrolyte; At the same time, the acid products formed after the decomposition of diools in the coolant and the acid exhaust gas after fuel combustion may also penetrate into the cooling system and promote the corrosion of the cooling system.

In order to reduce the formation of scale, the coolant requires the use of softened deionized water during both production and filling. In order to keep the car in low temperature in winter, the engine coolant is added with some substances that can reduce the freezing point of water as antifreeze to keep the cooling system from freezing in low temperatures.

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!

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"Blue wolf" antifreeze "is engine coolant, which is an indispensable heat dissipation medium for the normal operation of automobile engines. The main function of antifreeze is to prevent the coolant from freezing and cracking the radiator and freezing the engine block or cover when parking in the cold winter, and when the temperature is high in summer, it can effectively prevent boiling and avoid boiling. Automobile antifreeze has a large effect, which directly affects the performance and service life of the car.

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Related question.

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.

Winter freeze protection. 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.

Corrosion-resistant. The radiator, water pump, cylinder block and cylinder head, water distribution pipe and other components in the cooling system are composed of steel, cast iron, brass, copper, aluminum, soldering and other metals, due to the different electrode potentials of different metals, electrochemical corrosion is easy to occur under the action of electrolyte; At the same time, the acid products formed after the decomposition of diools in the coolant and the acid exhaust gas after fuel combustion may also penetrate into the cooling system and promote the corrosion of the cooling system. Corrosion of the cooling system will cause the downwater chamber, fuel injector spacer, cooling pipe, joint and water tank pipe of the radiator tank to fail, and at the same time, the corrosion products will block the pipeline, causing the engine to overheat or even paralyze; If the corrosion is perforated, the coolant can be severely damaged by the penetration of the coolant into the combustion chamber or crankcase, as when the coolant or water is mixed with the oil, it creates oil and gum that weakens the lubrication and causes the valve, hydraulic valve pushrod and piston ring to bond.

Therefore, a certain amount of anti-corrosion additives are added to the coolant to prevent corrosion in the cooling system. [1]

Waterproofing. 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.

First, antifreeze can provide self-antifreeze protection for the engine to resist the low ambient temperature and ensure that the engine can work normally within the normal temperature range.

2. Antifreeze can prevent the coolant from freezing and cracking the radiator and freezing the engine block or cylinder head when the coolant is stopped in the cold winter.

3. Antifreeze can provide efficient heat dissipation, which can remove excess heat from the engine to control the temperature of critical metal parts.

Fourth, the boiling point of antifreeze is higher than that of water, and the boiling point of high-quality antifreeze coolant is usually above zero 110, which can effectively prevent failure caused by boiling and overheating in summer.

Car antifreeze is also known as coolant, which helps the engine to lower the temperature. Because the engine generates a lot of heat when it is working, 60% of the heat is dissipated to the surrounding space through the cooling system. Water and methanol coolants have a low boiling point and are prone to boiling, which can cause engine damage or even paralysis even for a short period of time if the vehicle works under coolant boiling conditions.

In winter, antifreeze can prevent freezing, so it is also called antifreeze, the temperature is low in winter, in order to make the car continue to be used in low temperature in winter, the engine coolant is added to some substances that can reduce the freezing point of water as antifreeze, to keep the cooling system not frozen in low temperature weather. For this reason, coolant is sometimes referred to as "antifreeze" or "antifreeze".

When replacing the antifreeze with a new one, you need to put out all the old antifreeze in the car before adding a new antifreeze, and when replacing it, it is necessary to add it from the water pipe of the water tank (radiator), which is the way to let the antifreeze flow into the water tank quickly. Then add another bucket of antifreeze to the antifreeze tank, add it until the antifreeze tank is almost full, and drive for about 10 minutes, at this time, the cooling system has removed part of the air, the liquid level has dropped, and then add the antifreeze to it, and fill the highest mark of the storage tank "maxt".

Automobile coolant circulates in the engine cooling system, taking away the excess heat generated by the engine operation, so that the engine can run at normal operating temperature. When the coolant is insufficient, the engine will overheat when working, which will lead to damage to engine components, and in severe cases, burn out the engine or spontaneously combustion. Therefore, once the coolant of the car is found to be insufficient, it should be added in time, and the coolant should also be checked or replaced after 6 years of driving.

Composition of the coolant.

Engine coolant is not ordinary water, but a solution composed of mother liquor and water.

Due to the requirements of modern automotive processes, many different additives are added to it to solve problems such as cavitation, chemical corrosion, galvanic corrosion and scale to protect a wide variety of engines.

Due to the inconsistent chemical composition of additives such as rust inhibitors and defoamers in different types of coolants, different types of coolants should not be mixed.

What is the purpose of automotive coolant?

Automobile coolant, also known as coolant or antifreeze, the full name should be called automobile antifreeze antifreeze, is a liquid composed of antifreeze additives and additives and water to avoid corrosion caused by metals. It needs to be frost-resistant, corrosion-resistant, thermally conductive, and non-deteriorating. At present, ethylene glycol is often used as the key ingredient, and coolant with anti-corrosion addition and water is added;

The first one is the anti-corrosion function. The engine and its cooling system are made of metal, including copper, iron, aluminum, steel and solder. When these metals come into contact with water at high temperatures, they will basically be corroded and rust over time.

The coolant not only does not cause corrosion to the engine cooling system, but also has the functions of anti-corrosion and rust removal;

The second is that the coolant has a high boiling point. The boiling point of water is 100, and the boiling point of high-quality antifreeze and antifreeze is generally 110 above zero, so that it is used in hot weather, and antifreeze is more difficult to boil than water;

Coolant is an indispensable part of a car's engine. It circulates in the engine cooling system to take away the excess heat generated by the engine's operation, so that the engine can run at its normal operating temperature.

Engine coolant has four major functions: cooling, anti-corrosion, anti-scale and anti-freezing, and is an indispensable heat dissipation medium for the normal operation of the engine.

<> "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.

Answer, the role of automobile coolant 1Anti-freeze, 2 anti-corrosion, 3It is possible to increase the boiling point of the coolant.

1. The coolant has the ability to protect the engine cooling system from rust and corrosion; 2. Waterproof scale; 3. Anti-boiling; 4. Winter anti-freezing, reducing the energy consumption of the car.

The coolant also has an anti-corrosion effect. Generally, a certain amount of anti-corrosion and corrosion-containing additives will be added to the coolant to prevent the pipes of the cooling system from corrosively corroding, so as not to cause abnormalities in the cooling system.

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

Car coolant also has a name, antifreeze, which can help cool down the engine. Since the engine generates a lot of heat when it is working, 60% of the heat needs to be dissipated to the surrounding air through the cooling system. Moreover, water and methanol antifreeze have a low boiling point and are easy to boil.

If the car works with antifreeze boiling, the engine can be damaged or even paralyzed even for a short time.

In winter, coolant can avoid freezing, so it is also called coolant. Temperatures are low in winter. In order to allow the car to continue to be used in the low temperature of winter, the engine antifreeze is basically added with a substance that can reduce the freezing point of water as antifreeze, so that the cooling system will not freeze in low temperatures.

For this reason, antifreeze is sometimes referred to as "coolant" or "thaw."

When replacing the new coolant, it is necessary to basically release all the old coolant in the car, and then add new coolant, which needs to be added by the water pipe of the water tank (radiator), which is the way to let the coolant quickly enter the water tank. Then add another barrel of coolant to the coolant tank, add until the coolant tank is almost full, and drive for 10 minutes, at this time, the cooling system because of the removal of part of the air, the liquid level is lowered, and then the coolant is added, and the highest mark of the reservoir tank is filled until the "maxt" is erected.

1.Antifreeze effect:

This is the most basic function of the car coolant bending brother. The freezing point of automotive coolant is quite low. Using coolant in the winter can prevent the car's cooling system from freezing.

Reasonable use of automobile coolant can effectively prevent the car from working normally in winter. This is the original intention of many friends to add car coolant.

2.Cooling Effect:

Car coolant is also called car antifreeze. When a car engine is working, it generates a lot of heat, so most of the heat is dissipated through the car's cooling system. Because of the different materials, the boiling point of antifreeze is relatively low, which can play a good role in cooling and heat dissipation.

3.Anti-corrosion function:

The cooling system of a car is basically made of a small amount of metal, which is prone to galvanic corrosion under long-term working conditions, and may paralyze the cooling system of a car under harsh conditions. In automobile coolant, most of them are basically added with corresponding preservatives, which can effectively avoid the corrosion of automobile cooling system.

4.Anti-scale: In the cooling system of the car, it is easy to have scale, and the scale will adhere to the outside of the cylinder block, which will greatly shorten the thermal conductivity and reduce the cooling effect.

However, most of the coolant of automobiles is filled with deionized water, which is a key role in avoiding the formation of limescale.

Attachment: Automotive Coolant Replacement Cycle:

Car coolant is also necessary to replace the cycle, long-term use may have the effect of reduction or failure of the possibility, so it needs to be replaced immediately, especially at the turn of the season must also pay attention to the detection of the use of car coolant, for ordinary family cars, most of every two years or 40,000 kilometers to replace, this is only a reference range, the actual replacement situation needs to be determined according to their usual car frequency and driving habits. If you add different brands of coolant, you should clean the cooling system of the car, and then add it.