A kind of rolling method of high-strength aluminum alloy plate
An aluminum alloy plate and high-strength technology, which is applied in the field of aluminum alloy materials, can solve the problems that the durability of aluminum alloy materials and the damage tolerance cannot be improved or reduced simultaneously, and achieve the improvement of microhardness, elimination of dendrite segregation, and mechanical properties uniform effect
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Embodiment 1
[0026] The rolling method of the high-strength aluminum alloy plate of the present invention comprises the following steps:
[0027] A. Homogenize and anneal the Al-Mg-Si-Cu alloy billet after refining at 500°C for 12 hours;
[0028] B. Control the temperature of the Al-Mg-Si-Cu alloy billet after annealing at 390°C. After the temperature inside and outside of the Al-Mg-Si-Cu alloy billet is uniform, perform a single-pass 15% hot rolling pre-rolling Deformation, roll rolling line speed is 0.4m / min, continue to control the temperature of the Al-Mg-Si-Cu alloy billet to 390 ° C, and then carry out single-pass 70% large reduction rolling deformation, roll rolling The line speed is 0.4m / min, and the thick slab is obtained by rolling, and the thick slab is air-cooled to room temperature;
[0029] C. The cooled thick slab is subjected to solution treatment at 450°C for 0.5h, and then water quenched;
[0030] D. Pre-aging the thick slab after water quenching at 150°C for 10h, and t...
Embodiment 2
[0035] The rolling method of the high-strength aluminum alloy plate of the present invention comprises the following steps:
[0036] A. Homogenize and anneal the Al-Mg-Si-Cu alloy billet after refining at 520°C for 18 hours;
[0037] B. Control the temperature of the Al-Mg-Si-Cu alloy billet after annealing at 395°C. After the temperature inside and outside of the Al-Mg-Si-Cu alloy billet is uniform, perform a single-pass 16% hot rolling pre-rolling Deformation, roll rolling line speed is 0.5m / min, continue to control the temperature of Al-Mg-Si-Cu alloy ingot billet to 395°C, and then carry out single-pass 72% large reduction rolling deformation, roll rolling The line speed is 0.5m / min, and the thick slab is obtained by rolling, and the thick slab is water-cooled to room temperature;
[0038] C. The cooled thick slab is subjected to solution treatment at 470°C for 0.8h, and then water quenched;
[0039] D. Pre-aging the thick slab after water quenching at 180°C for 12h, and...
Embodiment 3
[0044] The rolling method of the high-strength aluminum alloy plate of the present invention comprises the following steps:
[0045] A. Homogenize and anneal the Al-Mg-Si-Cu alloy billet after refining at 550°C for 24 hours;
[0046] B. Control the temperature of the Al-Mg-Si-Cu alloy billet after annealing at 400°C. After the temperature inside and outside of the Al-Mg-Si-Cu alloy billet is uniform, perform a single-pass 17% hot rolling pre-rolling Deformation, the rolling speed of the rolls is 0.6m / min, continue to control the temperature of the Al-Mg-Si-Cu alloy billet to 400°C, and then carry out a single pass of 75% large reduction rolling deformation, roll rolling The line speed is 0.6m / min, and the thick slab is obtained by rolling, and the thick slab is air-cooled to room temperature;
[0047] C. The cooled thick slab is subjected to solution treatment at 510°C for 1.2h, and then water quenched;
[0048] D. Pre-aging the thick slab after water quenching at 200°C for ...
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