In the process of manufacturing 5A02 aluminum plate, we will find that some 5A02 aluminum plates will be brittle. How should we face this phenomenon? I am here to solve this problem for you.

1. Regarding the performance reduction of 5A02 aluminum plate caused by the poor assembly of the shunt ribs, the length of the ribs and the outer surface, the length of the junction of the ribs and the ribs should be appropriately added, or the compression ratio may be increased to deal with the change of the die head pressure. Adjust the flow resistance by adjusting the length of the straight section; in the die design stage, you can choose different compression ratios to change the extrusion pressure, but it is necessary to pay attention to the compression ratio of the head to be compatible with the compression ratio of the extruder screw; it can also be modified Formula, adjust extrusion process parameters, add perforated plate to change the size of melt pressure.
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Second, the die discharge is not uniform, resulting in inconsistent profile wall thickness, or inconsistent density. This also forms the difference in mechanical function between the two surfaces of the profile. As for non-standard profiles such as thin walls, I won't say more here.

3. The die section planning is unreasonable, especially the distribution of the inner reinforcement and the treatment of the interface viewpoint. This creates the appearance of stress concentration and requires improved planning and elimination of right and sharp angles at the interface.

Fourth, the cooling rate of the shaping die and the cooling water temperature often do not cause enough attention. The function of the cooling water is to cool and shape the stretched macromolecular chain in time to achieve the purpose of use.

5. The pressure of the die head is insufficient, and the pressure at the die head is directly determined by the compression ratio of the die, especially the length of the straight section of the die. If the compression ratio of the die head is too small or the straight section is too short, the finished product will not be fine and affect the physical function.

The above is the explanation of the brittleness of 5A02 aluminum plate, I hope it can be helpful to everyone.