Aluminum tubes are mainly divided into the following types
Divided by shape: square tube, round tube, patterned tube, special-shaped tube, global aluminum tube.
According to the extrusion method: seamless aluminum tube and ordinary extruded tube
Divided by precision: ordinary aluminum tubes and precision aluminum tubes, among which precision aluminum tubes generally need to be reprocessed after extrusion, such as cold drawing, fine drawing, and rolling.
According to thickness: ordinary aluminum tube and thin-walled aluminum tube
Performance: corrosion resistance, light weight.
It is a kind of high-strength hard aluminum, which can be strengthened by heat treatment. It has medium plasticity under annealing, just quenching and hot state, and good spot welding. When gas welding and argon arc welding, the aluminum tube has a tendency to form intergranular cracks; the machinability of the aluminum tube after quenching and cold work hardening is good, but it is not good in the annealed state. The corrosion resistance is not high, and anodic oxidation treatment and painting methods are often used to improve the corrosion resistance. It can also be used as a mold material.
Advantages of aluminum tubes: First, the advantages of welding technology: the welding technology of thin-walled copper-aluminum tubes suitable for industrial production is known as a world-class problem and is the key technology for replacing copper with aluminum in the connecting tube of air conditioners.
The second is the advantage of service life: From the perspective of the inner wall of the aluminum tube, since the refrigerant does not contain moisture, the inner wall of the copper-aluminum connecting tube will not corrode.
The third is the energy-saving advantage: 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 in other words, the better the heat insulation effect, the more power-saving.
Fourth, excellent bending performance, easy to install and move