collapsible aluminium tube
The collapsible aluminium tube is a kind of non-ferrous metal tube, which refers to a metal tubular material that is made of pure aluminum or aluminum alloy through extrusion processing into a hollow longitudinal length. The collapsible aluminium tube can have one or more closed through holes, with uniform wall thickness and cross-section, and delivered in a straight line or in a roll shape. It is widely used in cosmetic packaging, pharmaceutical packaging and other industries.
collapsible aluminium tube is mainly divided into the following types
According to the shape: square tube, round tube, pattern tube, special-shaped tube, global collapsible aluminium tube.
According to the extrusion method: seamless collapsible aluminium tube and ordinary extrusion tube
According to the precision: ordinary collapsible aluminium tube and precision collapsible aluminium tube, among which precision collapsible aluminium tube generally needs to be reprocessed after extrusion, such as cold drawing, fine drawing and rolling.
According to thickness: ordinary collapsible aluminium tube and thin-walled collapsible aluminium tube
Performance: Corrosion resistance, light weight.
collapsible aluminium tube characteristics
The collapsible aluminium tube is a kind of high-strength duralumin, which can be strengthened by heat treatment. It has moderate plasticity in annealed, freshly quenched and hot conditions, and has good spot weldability. The collapsible aluminium tube may form intergranular cracks during gas welding and argon arc welding. Tendency; the machinability of collapsible aluminium tube after quenching and cold work hardening is still good, but it is not good in the annealed state. The corrosion resistance is not high, and anodizing treatment and painting methods are often used, or the surface is coated with aluminum layer to improve the corrosion resistance. It can also be used as a mold material.
Advantages of collapsible aluminium tube: First, the advantages of welding technology: the welding technology of thin-walled copper collapsible aluminium tube suitable for industrialized production is known as a world-class problem and is the key technology for replacing copper with aluminum in the connecting pipe of air conditioner.
The second is the service life advantage: from the perspective of the inner wall of the collapsible aluminium tube, since the refrigerant does not contain moisture, the inner wall of the copper-aluminum connecting pipe 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 energy-saving.
Fourth, excellent bending performance, easy to install and move
collapsible aluminium tube surface treatment
Chemical treatment: oxidation, electrophoretic coating, fluorocarbon spraying, powder spraying, wood grain transfer
Mechanical treatment: mechanical wire drawing, mechanical polishing, sandblasting
collapsible aluminium tube
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