Why do you use copper pipes instead of aluminum pipes, PC pipes, aluminum alloy pipes or iron pipes

Although now every household is safe.

There is an air conditioner, and it is used very frequently, but I believe that many people do not understand the structure of the air conditioner. When we install air conditioners, we usually choose copper pipes to connect, which can not only ensure the normal operation of air conditioners, but also effectively ensure the refrigeration effect of air conditioners, but copper pipes are relatively expensive. Do you know why air conditioners have to use copper pipes?

Let's take this question and let's understand why the air conditioner has to use copper pipes!

Why do you have to use copper pipes for air conditioners?

1. It plays a connecting role in the installation of the whole equipment, and its purpose is to connect the indoor unit and the outdoor unit. Although the common connection materials on the market are copper and aluminum pipes, copper pipes are used more because of the performance of copper pipes. This is because of the refrigerant.

Eventually it is to be in the evaporator.

absorbs heat and then in the condenser.

The outside of the copper pipe of the air conditioner should be connected to the heat sink, and the refrigerant (freon) passed through the connecting pipe.

Therefore, the copper pipe used in this refrigerant will affect the refrigeration effect of the air conditioner to a certain extent.

2. From the performance point of view, the performance of copper pipes will be better. It has good stability, long service life, and is not prone to corrosion. At the same time, the thermal conductivity of refrigeration copper pipes is much better than that of aluminum pipes, and its welding performance and mechanical strength are far better than aluminum, and the first grade of air conditioning copper pipes will be more expensive than aluminum pipes.

In order to save money or be cheap, some consumers will change the copper pipe of refrigerators and air conditioners to thin or directly change to aluminum tubes, so that the ** will be relatively low, but the performance will be much worse than that of copper pipes, and the refrigeration effect is not better than that of copper pipes.

Disadvantages of aluminum tubes for air conditioners.

1. Compared with copper tubes, the density of this material is smaller and the texture is softer.

In terms of bendability, copper pipes will be better than aluminum pipes. In addition, the density of aluminum and copper is different, the cross-section is not the same, if the aluminum tube is used to connect the indoor and outdoor units, the connection may not be firmly welded, which is easy to cause refrigerant leakage, and even the phenomenon may occur. In addition, the copper-aluminum connection is easy to cause corrosion of aluminum tubes, resulting in poor cooling and heating effects, and even causing air conditioners to not work normally.

2. Because these two materials are very different in nature, if compared in terms of service life, the service life of aluminum tube is almost half of that of copper tube, so its refrigeration effect is relatively worse. In addition, the bending performance of aluminum pipes is worse than that of copper pipes, if you need to move the machine later, and want to bend the aluminum pipe again, it is very difficult, and you basically need to replace the new pipe.

Copper ductility.

Good, but also oxidation-resistant, anti-stress ability.

Very strong and not easily corroded. The texture of the aluminum tube itself is relatively soft, and its bending degree is better than that of the copper tube. When installing air conditioners, it is often encountered that it needs to be bent, and the aluminum pipes here should be more excellent.

However, we should also realize that aluminum tubes have poor pressure resistance and are prone to oxidation, which will lead to leakage.

Because copper pipes are not easy to corrode, the pressure resistance is better, the thermal conductivity is much better than other materials, and the service life is relatively long.

Because the chemical properties of copper are relatively stable and the comprehensive properties are relatively high, most of them choose copper tubes.

External heat dissipation evaporator, a large number of iron pipes.

An air conditioner copper pipe is a type of pressed and drawn seamless pipe. Air conditioning copper tubes have light weight, good thermal conductivity and high low temperature strength. Copper pipes are often used as connecting pipes for air conditioners.

Air conditioning aluminum pipes are also a type of non-ferrous metal pipes. Air conditioning aluminum tube is made of pure aluminum or aluminum alloy extruded into a hollow metal tubular material along its longitudinal length. The air conditioning aluminum tube has the characteristics of "medium plasticity in annealing, rigid quenching and hot state, and good spot welding and weldability".

Aluminum tubes are also used in air conditioners. But at present, copper pipes are more suitable for air conditioners than aluminum pipes.

The difference between copper and aluminum pipes for air conditioners:

1. The material of copper tube and aluminum tube is different.

2. The interception flow of copper pipe and aluminum tube is different.

3. There is a difference between copper pipe and aluminum pipe: the cost of copper pipe is high.

4. Application of copper tube and aluminum tube: copper tube has good ductility, oxidation resistance, good pressure resistance of bell mouth, is not easy to leak refrigerant, and is often used in air conditioning; Aluminum pipe can not be made of flare, poor pressure resistance, not oxidation resistance, easy to leakage, if not wrapped in insulation cotton, it is a hidden danger.

5. The bending degree of copper pipe and aluminum tube: the bending degree of aluminum tube is good, and it is more resistant to bending than copper tube.

The car uses alloy aluminum tubes (much higher than ordinary copper tubes), which have high strength.

The weight is lighter than copper, and its own light weight is more suitable for bumpy environments.

Copper tubes and aluminum tubes are mainly the above differences, and this difference is also very large.

The use of aluminum pipes in air conditioners may lead to the quality of copper-aluminum welding.

The material and welding quality of the copper pipe are not suitable for long-term movement and bumpy working conditions.

Gree claims to use copper pipes, when you buy it, first ask the salesman to confirm, and then ask him to indicate on the invoice, if you don't find them to lose money, you can see it when you install it.

In recent years, in addition to copper pipes, more and more aluminum tubes have been used to replace the connecting pipes of air conditioners, so what is the difference between copper pipes and aluminum tubes? What are the advantages and disadvantages of using copper and aluminum pipes? First of all, the copper tube has high cost, good ductility, oxidation resistance, good pressure resistance of the bell mouth, and is not easy to leak refrigerant, the disadvantage is that the cost is high, and it will age and harden after a long time.

The biggest advantage of aluminum pipe is that it is cheap, and the bending degree is good, compared with copper pipe bending, we all know that when we install air conditioning, the pipe often needs to be bent, and the copper pipe is not bent by aluminum pipe, and the refrigeration effect will not be affected, but the disadvantage is that it cannot be made of bell mouth, and the pressure resistance is poor, so in order to solve this problem, all aluminum pipes are connected to a section of copper pipe to make a bell mouth, and another is that aluminum pipe is not resistant to oxidation, and it is easy to leak points. If your budget is enough, it is best to choose copper pipes if you often move and need to disassemble and assemble the air conditioner, after all, the price difference between the two pipes is very large.