Aluminum tube is a kind of non-ferrous metal pipe, refers to the use of pure aluminum or aluminum alloy extruded into the longitudinal length of its hollow metallic tubular material. There can be one or more closed through holes, wall thickness, cross-section uniform, in line or roll-shaped delivery. Widely used in automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electrical and mechanical, home and other industries.
Aluminum tube is a high-strength hard aluminum, can be enhanced heat treatment, in annealing, rigid quenching and thermal state plasticity medium, spot welding is good, with gas welding and argon arc welding aluminum tube has the tendency to form intergranular crack, the aluminum tube after quenching and cold hardening can be cut performance is still good, in the annealing state bad. Corrosion resistance is not high, often using anodic oxidation treatment and coating methods or surface aluminum coating to improve corrosion resistance. can also be used as a mold material.
Advantages of aluminum tube: First, the advantages of welding technology: suitable for industrial production of thin-walled copper-aluminum pipe welding technology, known as world-class problem, is the key technology of aluminum generation for air conditioner company. The second is the use of life advantages: from the aluminum tube wall, because the refrigerant does not contain moisture, copper and aluminum connection tube wall will not occur corrosion phenomenon. Three is the energy-saving advantage: Air conditioner indoor machine and outdoor machine connection pipeline, heat transfer efficiency of the lower the more energy-saving, or said, the better the heat insulation effect, the more electricity. Four is good bending performance, easy to install, move machine.
Aluminum tubes are mainly divided into the following types
By shape: square Tube, round pipe, pattern tube, shaped tube.
According to the extrusion method: seamless aluminum pipe and ordinary extruded pipe.
According to the precision: ordinary aluminum tubes and precision aluminum tubes, in which the precision aluminum tube generally needs to be processed after extrusion, such as cold drawing and rolling.
According to thickness: ordinary aluminum tube and thin-walled aluminum tube.
Performance: corrosion resistance, light weight.