Aluminum tube is a kind of non-ferrous metal tube, which is a hollow metal tubular material made of pure aluminum or aluminum alloy by extrusion.

There can be one or more closed through holes with uniform wall thickness and cross-section, which can be delivered in a straight line or in a roll. It is widely used in automobile, ship, aerospace, aviation, electrical appliances, agriculture, electromechanical, household and other industries.

Aluminum pipes are mainly divided into the following types:

According to the shape, it can be divided into square pipe, round pipe, pattern pipe, special-shaped pipe and universal aluminum pipe.

Divided by extrusion method: seamless aluminum pipe and ordinary extruded pipe

According to the accuracy, it is divided into ordinary aluminum tube and precision aluminum tube. Precision aluminum tube generally needs to be processed after extrusion, such as cold drawing, fine drawing and rolling

Divided by thickness: ordinary aluminum tube and thin-wall aluminum tube

Performance: corrosion resistance, light weight.

characteristic

It is a kind of high-strength hard aluminum, which can be strengthened by heat treatment. It has medium plasticity in annealing, just quenching and hot state. It has good spot welding performance. When gas welding and argon arc welding are used, the aluminum pipe tends to form intergranular cracks; After quenching and cold work hardening, the machinability of aluminum tube is still good, but it is poor in annealed state. The corrosion resistance is not high, and anodic oxidation and painting methods or aluminum coating on the surface are often used to improve the corrosion resistance. It can also be used as a mold material.

Advantages of aluminum pipe: first, advantages of welding technology: the welding technology of thin-walled copper aluminum pipe suitable for industrial production is known as a world-class problem and is the key technology of replacing copper with aluminum for connecting pipes of air conditioners.

Second, the advantage of service life: from the perspective of the inner wall of the aluminum pipe, since the refrigerant does not contain water, the inner wall of the copper aluminum connecting pipe will not be corroded.

Third, energy saving advantages: the lower the heat transfer efficiency of the connecting pipeline between the indoor unit and the outdoor unit of the air conditioner, the more energy-saving, or the better the heat insulation effect, the more power-saving.

Fourth, it has excellent bending performance and is easy to install and move.