Preparation method of aluminum alloy plate
A technology of aluminum alloy sheet and plate, applied in the direction of metal rolling, metal rolling, metal processing equipment, etc.
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[0048] 1. After the ingot with low residual stress is obtained, uniform heating is carried out to achieve the rolling condition, and the temperature of the ingot is not allowed to have an obvious temperature gradient (the temperature error is less than 5°C).
[0049] 2. Using a special rolling process, equal pressure, equal rolling force, and horizontal roll shape disturbance, during the rolling process, the ingot extends consistently in the length direction, and at the same time extends consistently in the length direction at different points in the transverse direction The amount of compression deformation is consistent, which reduces the inconsistency of compressive stress caused by inhomogeneity in the rolling process, which cannot be eliminated or inconsistency after elimination in the subsequent process, resulting in inconsistency in the stress of the plate inside the plate. In a reasonable rolling process, the disturbance of the rolls is well controlled, so that the ingo...
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