Aluminum tube is a kind of non-ferrous metal pipe, refers to the use of pure aluminum or aluminum alloy extruded into its longitudinal full length of hollow metal tubular material. May have one or more closed through-holes, wall thickness, cross-section uniform, in a straight or roll-like delivery. Widely used in automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electrical and mechanical, home and other industries.
Aluminum tubes are divided into the following categories
According to the shape points: square tube, tube, pattern tube, shaped tube
According to the extrusion method points: seamless aluminum tube and ordinary extrusion tube
According to the precision points: ordinary aluminum tubes and precision aluminum tubes, including precision aluminum tube generally need to be re-processed after extrusion, such as cold drawn fine pumping, rolling.
Thickness by: ordinary aluminum and thin-walled aluminum tube
Performance: corrosion resistance, light weight.
For a high-strength hard aluminum, can be heat treatment to strengthen, in the annealing, just quenching and thermal state of plastic medium, spot welding good weldability, gas welding and argon arc welding aluminum tube has a tendency to form intergranular cracks; In the quenching and cold hardening can be cut after the performance is still good, in the annealing state of bad. Corrosion resistance is not high, often used anodizing treatment and coating method or surface coated with aluminum layer to improve corrosion resistance. Can also be used as a mold material. In the case of
Advantages of aluminum: First, the advantages of welding technology: suitable for industrial production of thin-walled copper and aluminum pipe welding technology, known as the world-class problems, is the air conditioner connection pipe aluminum key technology. In the case of
Second, the service life advantage: from the aluminum tube wall, because the refrigerant does not contain water, copper and aluminum pipe wall does not occur corrosion phenomenon. In the case of
Third, the advantages of energy-saving: air-conditioning indoor unit and outdoor unit connected to the pipeline, the lower the heat transfer efficiency, or, the better the better the insulation effect. In the case of
Four is excellent bending performance, easy to install, transfer machine.