Drawn aluminium tube can be used in a variety of applications from Anna Daniell's blog

Due to the fact that current aluminum tubes are manufactured using a traditional combined die welding and extrusion process, weld lines cannot be avoided completely, especially after oxidation has occurred. A short round bar is combined with a high temperature and a slow extrusion process to produce the finished product in extrusion manufacturing. Cleanliness is essential for maintaining control over three different temperatures at the same time. This includes the aluminum rod, the extrusion tube, and the mold. It is possible to adjust both the aging time and the temperature of the pipe wall depending on the thickness of the pipe wall and the size of the pipe diameter.

The aluminum tube extruder, which is currently in use, is comprised of two parts: an extrusion box and a cylinder, which are connected together by a screw. In this process, the heated aluminum block is introduced into the extrusion box through the inlet port and the cylinder is turned on, causing the extrusion beam to push the aluminum block toward the extrusion die and a high temperature to be generated in the extrusion chamber, resulting in the production of the aluminum tube. The plasticity of the aluminum block produced in the state is unsurpassed in the industry. Additionally, by lowering the operating temperature of an aluminum block, it is possible to reduce the plasticity of the aluminum block. By applying force to the pressing pad at a high rate and with sufficient force, it is able to force the aluminum block out of the extrusion die, causing plastic to flow out of the extrusion die and to emerge from the extrusion die.

It is possible to exert a large amount of force on an aluminum block while it is in a high-pressure state in the extrusion deformation zone during the extrusion process, and the extrusion deformation can be enhanced as a result of the increased force. It is necessary to apply a great deal of pressure to the aluminum block during the extrusion process if you want to produce an aluminum tube with the cross-sectional shape and size that you want. It is particularly true for aluminum blocks with an extrusion effect, which have a highly complex structure, that the mechanical properties of the metal material are improved by the structure of the metal material. Products produced by other processing methods that are comparable in size and shape to extruded products have significantly higher longitudinal (extrusion direction) mechanical properties after aging than products produced by extrusion. Pressing is extremely adaptable and versatile, and drawn aluminium tube can be used in a variety of applications.

The extrusion die can be changed to produce products in a variety of shapes, sizes, and varieties while still using the same machine. In just a few minutes, you can have your extrusion die swapped out for a new one. Despite the fact that it is time-consuming, it is extremely successful. During the fabrication of some double-layer seamless aluminum tubes, on the other hand, there have been significant problems that have persisted. Therefore, it is critical that this situation be corrected as soon as is reasonably possible.

In most cases, continuous aluminum tube is produced through the use of a perforated extrusion process. When compared to the manufacturing process for other materials such as steel and aluminum, the manufacturing process for seamless aluminum tube is relatively strict and fine. This is due to the characteristics of low specific gravity, ease of processing, and high mechanical strength of seamless aluminum tube.

The manufacturing of seamless aluminum tubes presents a number of challenges that must be overcome in order to produce a finished product of superior quality. Permit me to share with you some of the issues that must be addressed during the process of fabricating seamless aluminum tubes with a seamless aluminum wall. I will also share some of the positive practical experiences that I have had in this area that have been very successful.

Large seamless aluminum tubes are typically produced by hot extrusion and then subjected to a variety of effective post-processing procedures in order to achieve their final shape, which is typically cylindrical. The small seamless aluminum tube can be subjected to a variety of effective treatments after it has been formed by hot extrusion or cold stretching.

Brittle blisters are formed during the extrusion of seamless aluminum tubes. This is due to the fact that the alumina hydrate produced during the extrusion process must be continuously extruded, and this causes the alumina hydrate to become drastically dehydrated, resulting in the formation of blisters in the tube. If you want to avoid blistering on seamless aluminum pipe, make sure that the round aluminum rod for extrusion does not have rolling cracks and that it is not stored in a humid environment. Also, make sure that the sodium hydroxide content of the cleaning liquid is at least 30%, which is extremely strict. It is necessary to avoid rolling cracks in round aluminum rod used for extrusion in order to avoid blistering on the seamless aluminum pipe. An aluminum ion control valve must be used in order to maintain control over the amount of aluminum ions present in the cleaning solution.


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By Anna Daniell
Added Jan 12

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