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   Aluminum tubes are mainly divided into the following categoriesAccording to the shape: square pipe, round pipe, pattern pipe, special-shaped pipe, global aluminum pipe.According to the extrusion method: seamless aluminum tube and ordinary extrusion tubeAccording to the precision points: ordinary aluminum pipe and precision aluminum pipe, precision aluminum pipe generally need to be processed after extrusion, such as cold drawing fine extraction, rolling.According to the thickness: ordinary aluminum pipe and thin-walled aluminum pipePerformance: corrosion resistance, light weight.Features:As a kind of hard aluminum with high strength, it can be strengthened by heat treatment. Its plasticity is medium under annealing, hardening and heat, and its spot welding property is good. When gas welding and argon arc welding are used, aluminum pipe tends to form intergranular cracks.The machinability of aluminum tube is good after quenching and cold working hardening, but bad when annealing.The corrosion resistance is not high. Anodizing and painting methods or aluminum coating are often used to improve the corrosion resistance.It can also be used as mold material.Aluminum pipe advantages: one is welding technology advantages: suitable for industrial production of thin wall copper and aluminum pipe welding technology, known as the world class problem, is the key technology of air conditioner connecting pipe aluminum instead of copper.

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