Variety and use of aluminum alloy pipe:
Aluminum and aluminum alloy pipes can be hot extruded, cold extruded, cold rolled, cold drawn (including coil stretching), cold bend,
Production by welding (cold forming + high frequency welding), spinning, continuous extrusion, etc. At present, the variety of aluminum alloy pipes has reached several thousand.
According to the wall thickness of the pipe, it can be divided into a thin wall pipe and a thick wall pipe. Thick-walled pipes are mainly produced by hot extrusion, the wall thickness is generally 5 to 35 mm, and the maximum wall thickness produced by large extruders can reach more than 65 mm. Thin-walled tubes can be fabricated by hot extrusion, cold extrusion, cold rolling, cold drawing and other cold deformation methods. The wall thickness is generally 0.5 to 5 mm. With the continuous improvement of cold-rolled pipe mills, spinning and welded pipes The appearance of the method, the minimum wall thickness of the aluminum alloy can be as small as 0.1 mm or less.
According to the specifications, it can be divided into large diameter thick wall pipe, large diameter thin wall pipe and small diameter thin wall pipe. According to the shape of the section, it can be divided into a circular tube, an elliptical tube, a drop tube, an oblate tube, a square tube, a rectangular tube, a hexagonal tube, an octagonal tube, a pentagon tube, a trapezoidal tube, a rib tube and other shaped tubes (Fig. 3 -2-4). The change of the section along the length direction can be divided into a constant section tube and a variable section tube.
According to the production method, it can be divided into hot extrusion tube, cold extrusion tube, Kangfum extrusion tube, hot rolling tube, cold rolling tube, spinning tube, cold bending tube, welded tube, spiral tube, coil tube stretching tube. , bimetallic tubes, bonded tubes, etc.
According to the application, it can be divided into military and civil conduits, casing tubes, container tubes, drilling tubes, casings, waveguides, heat pipes, condenser pipes, evaporator pipes, nozzle pipes, agricultural irrigation pipes, flagpoles, utility poles, and electricity collection. Bows and other various structural members, tubes, decorative tubes, household items, etc.
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