Extruded
aluminum tube processing may have many advantages, but everything has two sides, and there are also some disadvantages due to its deformation mode and equipment structure characteristics.
1. The structure and properties of the product are not uniform. Due to the uneven flow of metal during extrusion, the structure and properties of the extruded product are uneven between the surface and the center, and the head and tail.
2. The working conditions of the extrusion tool and die are harsh, and the tool and die are worn out. The billet is in a nearly closed state during extrusion, and the three-way pressure is high, so the pressure on the abrasive tool is very high. At the same time, the tool and mold are also subjected to high temperature and high friction during hot extrusion, which seriously affects the service strength and life of the mold. .
3. Low production efficiency. The conventional extrusion method cannot achieve continuous production well, the extrusion speed is far lower than the rail speed, and the loss of geometric waste generated during production is relatively large, and the yield of finished products is low.
To sum up, large loss, low efficiency, high extrusion pressure, uneven tissue performance, etc. are all problems that need to be continuously improved. With the continuous development and progress of modern technology, they can all be overcome. Use new extrusion process, replace new equipment, new structure mold. Especially for aluminum alloys, the extrusion processing method can be regarded as an advanced processing method to ensure product quality and comprehensive benefits.
