According to extrusion method: seamless aluminum tube and ordinary extrusion tube according to precision: ordinary aluminum tube and precision aluminum tube, precision aluminum tube generally need to be reprocessed after extrusion, such as cold drawing, fine pumping, rolling.
According to the thickness: ordinary aluminum tube and thin-wall aluminum tube performance: corrosion resistance, light weight.
Characteristics: It is a kind of high strength hard aluminum, which can be strengthened by heat treatment, with medium plasticity under annealing, rigid quenching and thermal state, good spot welding weldability, and the aluminum tube has the tendency to form intergranular crack when gas welding and argon arc welding are used.The machinability of aluminum tube is good after quenching and cold hardening, but not good when annealed.The corrosion resistance is not high, and anodic oxidation and painting are often used or the surface coated with aluminum to improve the corrosion resistance.It can also be used as mold material.
Advantages of Aluminum square rectangular condenser header tube: First, welding technology: The welding technology of thin-walled copper and aluminum tube suitable for industrial production is known as a world-class problem, which is the key technology of replacing copper with aluminum in air-conditioner connecting tube.Second, the advantage of service life: from the inside of the aluminum tube, because the refrigerant does not contain moisture, the corrosion phenomenon will not occur inside the copper-aluminum connecting tube.The third is the advantage of energy saving: the connection pipeline between the indoor and outdoor air conditioner has the lower heat transfer efficiency, the more energy saving; in other words, the better the heat insulation effect, the more energy saving.Four is good bending performance, easy to install, switch.
