Is it better to have a cast iron engine or an all aluminum engine if the car requires a long drive?

It should be better than all-aluminum, and the heat dissipation should be faster and lightweight.

The heat dissipation of iron is not good, the heat dissipation of the engine is not fast enough, the ring is easy to wear, the weight is larger than that of aluminum alloy, and the fuel consumption is also larger.

The car is not modified, the aluminum is good, and the modification potential is good, and the cast iron is good.

Advanced design and precision craftsmanship are the guarantee of engine reliability. Don't whitewash the cast iron engines that are still in use today.

Say it for sure: cast iron engines are good! It is suitable for repeated cruising, and it is easy to repair the 800,000-kilometer breech cylinder grinding shaft. As for the cast aluminum cylinder block, it is just a way for manufacturers to increase the price.

The cost of an all-aluminum engine is higher than that of a cast iron engine, but the all-aluminum engine is lighter, and the car will be a little more fuel-efficient when walking. However, if you drive for a long time, you should pay attention to the condition of the car and let the driver and the car get a rest in time, which is the way to safety.

I think the cast iron engine is good, because the cast iron engine has good rigidity, high strength, not easy to deform, small thermal expansion coefficient, good wear resistance, long life, can be used repeatedly, and there are many advantages. ‍‍

The all-aluminum engine is better, the all-aluminum is lighter than the cast iron, and the heat dissipation performance is better.

I think the car has to run for a long time, of course the engine is an all-aluminum engine is better, this all-aluminum engine, its cost is relatively high, it is resistant to high temperatures, and it is especially suitable for long-term driving, I think the all-aluminum engine is the best choice.

It must be an all-aluminum engine, you must know aluminum and cast iron, aluminum is more resistant to high temperatures, and the car will run longer. If it is a cast iron engine, it is easy to cause necessary trouble for a long time.

In terms of heat dissipation, strong anti-explosion performance, the all-aluminum engine is more excellent, and the overall heat dissipation is good, which means that the oil heats up quickly during the engine start-up process, and the wear and tear caused to the cylinder block is small, and the engine can enter the working state faster; The good knock resistance means that the vehicle can use a lower grade of fuel, saving the owner some of the money.

The excellent high-temperature and high-pressure resistance characteristics of the cast iron engine are the only choice for many high-supercharged engines, and the disadvantages are also obvious, and the weight cannot be lightweight, which is about 30% heavier than the aluminum engine.

The strength of iron is much greater than that of aluminum, not easy to deform, compared with the all-aluminum engine, the cast iron engine bears the thermal load capacity of the cylinder block is stronger, and it is conducive to improving the power of the engine, for the car that runs for a long time, the temperature of the engine is relatively high, and the cast iron engine is more resistant to high temperature than the all-aluminum engine, and it is not easy to deform, so it is better to choose a cast iron engine.

All-aluminum engines are generally more expensive than cast iron engines, such as Volkswagen's EA211 and EA111 engines** One of the reasons for the gap is the material.

As the "heart" of the car, the performance of the engine is one of the important criteria to measure the quality of a car, so it is particularly important to choose the right material to cast the engine.

Whether the car is a cast iron engine or an all-aluminum engine mainly depends on the cylinder block of the car, if the cylinder block of the car is a cast iron engine, and the cylinder head of the car is an aluminum engine, then it is also called a cast iron engine. It must be that the all-aluminum engine is better, and the all-aluminum engine is also the general trend, because the car is pursuing the so-called lightweight, and the all-aluminum engine heat dissipation is also better. As the displacement of the all-aluminum engine is lighter than the cast iron engine about 40 pounds, not only the weight of the engine to save fuel consumption, but more importantly, the weight drop has great benefits for the supporting relevance of some parts, such as the suspension material can be set to lighter weight, and then reduce the mass of the whole vehicle, to achieve better handling and so on.

In terms of plasticity, the all-aluminum engine is still inferior to the cast iron engine, especially the engine that needs power modification, the later power improvement, etc., or the cast iron engine is better, and the cast iron engine is higher than the all-aluminum engine in terms of corrosion resistance and temperature requirements. Cast iron engines, because of their high strength, temperature and pressure, so the overall life is better than that of all-aluminum engines. Therefore, although the current all-aluminum engine, although the cylinder block and cylinder head are all-aluminum, the cylinder block also has a cast iron steel sleeve, which can also be understood as a combination of the respective advantages of the cast iron engine and the all-aluminum engine.

From the point of view of the physical properties of iron and aluminum, the strength of aluminum is much smaller than that of iron, and it is easy to deform under heavy pressure or high temperature, while the all-aluminum engine is easy to deform and produce chemical reactions at high temperatures, and the service life is worse than that of cast iron engines, and the all-aluminum engine is more expensive in terms of maintenance costs.

What are the advantages and disadvantages of cast iron engines and all-aluminum engines? From the point of view of the material of the engine, there are two main things, that is, the cylinder block and the cylinder head. The most critical part is the cylinder block, and the cylinder head is basically made of aluminum.

Because it is lightweight and dissipates heat well. Let's compare aluminum and cast iron. Aluminum alloy engine:

The advantages are light weight, effectively reducing the weight of the engine, and good heat dissipation. In addition, the manufacturing process requirements are slightly higher, and the manufacturing cost is higher.

More expensive than cast iron engines.

Unfortunately, the engine is prone to deformation when heated, resulting in larger cylinder clearances and greater power leakage during long-term operation. In addition, the power of the aluminum alloy engine should not be overly squeezed. But now with the improvement of technology, the high-temperature resistance of aluminum alloy engines is no worse than that of cast iron.

First of all, there is the weight comparison. Aluminum weighs much less than cast iron. As long as it can meet the corresponding strength requirements, the aluminum engine should be more than ten kilograms lighter, which means that the weight of the whole vehicle is lighter and the fuel consumption is relatively lower.

For every 10% reduction in the weight of an engine with the same displacement, fuel consumption can be reduced by 6% to 8%. Let's compare the volume. Because aluminum is lighter than cast iron, in the case of equal mass, the volume of aluminum cylinder block is usually a little larger than that of cast iron cylinder block, so aluminum cylinder block is relatively larger than cast iron cylinder block.

It also means that the overall volume of the engine is larger, taking up more interior space, which will have an impact on the design layout of the car and the use of interior space. Cast iron engine: the advantage is that the manufacturing process is low and the technology is mature.

In practice, cast iron engines can withstand high speed-gauge temperatures and high pressures. It's a pity that the Changxun engine is overweight, and the heat dissipation is not as good as aluminum alloy. Let's start with corrosion resistance and strength.

Aluminum's corrosion resistance and strength are actually worse than those of a cylinder block engine without cast iron. Well, why say that? Turbocharged engines, in particular, need to be particularly resistant to high temperatures and pressures, and the cylinder blocks are often cast iron, which is relatively better than aluminum.

Then in terms of cost, aluminum is generally more expensive than cast iron. We often say that some German brands use aluminum cylinders abroad, while cast iron is used at home. The most fundamental reason is based on cost considerations.

The life of the all-aluminum engine is longer, because the cylinders of this engine are also made of aluminum alloy, which is very wear-resistant, and the quality of this engine will be better.

The life of the all-aluminum engine is a little longer, because the good heat dissipation capacity of this engine is very good, the cooling capacity is also relatively good, and the fuel can burn better.

The all-aluminum engine has a longer life, because the weight of this engine is relatively light, which can effectively reduce the weight of the engine and the heat dissipation is better.

According to the development of history, the first to appear was the cast iron engine, and then the aluminum alloy engine. The manufacturing process of cast iron engines is lower than that of aluminum alloys, but it does not mean that cast iron engines are worse than aluminum alloy engines, in fact, the two types of engines have their own advantages.

Cast iron engine: The advantage is that the manufacturing technical conditions are low, and the process is mature, and the cast iron engine can withstand the working environment of high temperature and high pressure in the actual working process. The disadvantage is that the engine is too heavy, and the heat dissipation is not as good as that of aluminum alloy.

Aluminum alloy engine: the advantage is that it is light in weight, effectively reduces the weight of the engine, and has good heat dissipation, in addition, the manufacturing process requirements are slightly higher, and the manufacturing cost is more expensive than that of cast iron engines. The disadvantage is that the engine is easy to deform when it is heated, resulting in a large gap between the cylinder inner wall and the piston under long-term operation, and a large power leakage.

In addition, the aluminum alloy engine should not squeeze the power of the engine too much. However, after the improvement of technology, the high temperature resistance of aluminum alloy engines is no worse than that of cast iron.

The engine of high-end cars is generally all-aluminum, which can achieve the purpose of reducing the weight of the body.

The advantage of an all-aluminum engine is that it is lightweight, and fuel savings are achieved by reducing weight. Among the engines of the same displacement, the use of an aluminum block engine can reduce the weight by about 20 kg. For every 10% reduction in vehicle weight, fuel consumption can be reduced by 6% to 8%.

There are two types of gasoline engine blocks: cast iron and cast aluminum. In diesel engines, cast iron blocks make up the vast majority.

The engine is made of all-aluminum, with a steel sleeve.

The use of all-aluminum or iron does not mean which one is better, the advantage of aluminum is that it is lighter in mass and less strong than in cast iron.

Therefore, the power of the engine of cast iron is higher than that of all-aluminum. It's just that the weight and volume are larger than those of all-aluminum. All-aluminum, on the contrary, is mainly a gasoline engine, which is generally used in small cars, the engine is small, and the cylinder is comparatively made

Cast iron has a longer lifespan. Aluminum alloy has good thermal conductivity, which is convenient for transferring the heat emitted by cast iron cylinder liners. The combination of aluminum cylinder liner and cast iron cylinder liner has the characteristics of high heat resistance and high hardness, overcoming the shortcomings of aluminum material that is not wear-resistant.

At present, this type of cylinder is widely used in commercial vehicles and; Haolu about the modified product. The aluminum alloy body has a good flash heating effect, and the weight of the body will be reduced, which can reduce the installation weight of the whole vehicle. However, the good flash heat of aluminum alloy in the body remanufacturing process will give the body casting process.

Brings technical problems.

Cast iron should last longer. Cast iron cylinders still have the advantages of good rigidity, high heat resistance, high hardness, and not easy to deform. Cast iron cylinder liners and aluminum cylinders are the most common cylinder products at present.

It still belongs to the cast-iron engine. However, the cylinder head material of many engines is also replaced by aluminum. The reason is not that they are light, but that the aluminum cylinder heads have better heat dissipation.

The engine is better, because the all-aluminum engine represents the development trend of "lightweight" in the future.

Currently, automotive companies around the world are engaged in lightweighting and weight reduction. Lightweighting is also essential in terms of the performance of the car itself. An increase of 10 horsepower is not as much of a potential. For example, the power output of a cast-iron engine with a liter displacement.

It can exceed 70 kilowatts, while the output of a cast aluminum engine can only reach 60 kilowatts. The metal is lustrous (i.e. visible.

The strong sock width reflex), malleability.

Materials that are easy to conduct electricity, heat and other properties. The vast majority of metallic elements on Earth.

Exists in nature in a combinatorial state.

This is because most metals are chemically relatively active in brightening, and only a few metals, such as gold and silver, exist in their free state. Metals are widely found in nature and are widely used in life. They are very important substances and are most used in modern industry.

First and foremost, the most obvious point is quality. Aluminum engines must be lighter than iron engines. Engine weight has a great impact on vehicle performance.

We can't kill with a stick. Here, comparing the two engines, everyone will understand. The use of aluminium reduces the weight of the engine and, to some extent, helps the chassis adjuster to optimize the control of the body's center of gravity.

The material of the cylinder block is not as good as the same, there will be different production methods, stability and durability are different, the cast iron engine is with oxidation resistance to the slag slow effect of Wang Zhao, can resist friction, the weight of the all-aluminum engine is relatively light, with the effect of energy saving and emission reduction. Cast iron engines have a long life.

I think cast iron has a long life, the difference is that cast iron engines are stronger, but they are massier, and all-aluminum engines are lighter, but relatively more fragile.

What are the advantages and disadvantages of car engines, cast iron and cast aluminum.

Like the engine, the cylinder block is divided into cast iron and cast aluminum, generally speaking, the relative weight of the cast iron block will be heavier, and the heat dissipation effect of Que Bixiang is relatively poor, but the relative manufacturing cost of cast iron is relatively low and the relative strength is relatively high. However, the cast aluminum cylinder body is relatively better in heat dissipation, and the weight of the lady's cylinder is relatively lighter, which is of great benefit to the lightweight design of the vehicle, but the steel of cast aluminum is relatively high, and once the high temperature of this material is in the later stage, the volume skin is easy to deform.