When the aluminum alloy enclosure is made, it needs to be within the range of the selected hot aluminum extrusion processing temperature. According to the alloy composition and the type of aluminum profile shell, the flow speed can be 0.5-100m/min or more. Changes within the scope. What are the issues that need to be paid attention to when extruding aluminum alloy enclosures?
First of all, it is necessary to determine that the metal flow rate of the aluminum alloy enclosure under the allowable aluminum extrusion processing is that there are no surface cracks, no scribes, bonding tools, and other surface defects, so as to ensure the cross-sectional geometric size of the aluminum profile shell. Stable, without wrinkles, waves and other defects. Although different aluminum profile manufacturers extrude different aluminum profile shells every day, you must pay attention to the extrusion work. Then, the following work needs to be done when extruding the aluminum housing.
1. Choose the right extruder. Since the thin-walled aluminum alloy enclosure is subjected to greater stress during extrusion, the operator must pay more attention to extrusion.
2. Straightening. The extruded aluminum profile can be straightened when the temperature drops below 60°C. Stretching is required for straightening. When the aluminum profile is just extruded, it is not yet aging and relatively soft, so be careful when stretching. Otherwise, it will be easily deformed if it is stretched too much.
3. Choose suitable fixtures. aluminum alloy enclosure stretching requires the use of clamps, especially shell aluminum profiles, try to keep the deformation within 1%. In addition to choosing suitable fixtures, the proficiency of workers also has higher requirements.
4. In the production of aluminum alloy enclosures, care should be taken to prevent rubbing when reclaiming and moving. The operator should leave a gap between each material, and each layer of material should be separated by wool strips. The bending and discharge length of aluminum profiles should be processed in time. The top has the effect of heat resistance. The newly extruded aluminum profile should be turned frequently during the cooling process to avoid uneven cooling and cause local bright spots, especially the large section and thick wall aluminum profile.
