Al‑mg‑cu‑zn series aluminum alloy and preparation method of aluminum alloy plate
An aluminum alloy plate, al-mg-cu-zn technology, applied in the field of preparation of Al-Mg-Cu-Zn series aluminum alloy and aluminum alloy plate, can solve the problems of insufficient hardening of baking paint and dent resistance, etc. Achieves the effect of satisfying the hardening of baking paint and dent resistance, and the effect of remarkable baking paint hardening
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Embodiment 1
[0041] The 1mm cold-rolled plate of 5# alloy obtained by the above method is subjected to solution treatment at 525°C for 10 minutes in a salt bath furnace, and then directly water quenched. Divide the cold-rolled sheets after quenching into two groups. One group is placed in an aging furnace within 6 minutes after quenching for pre-aging treatment at 80°C for 12 hours, and then placed at room temperature for 7 days to obtain the T4P state; the other group is directly placed in the The T4 state was obtained at room temperature for 7 days. Finally, the T4P state and T4 state alloys were artificially aged at 180°C / 30min (simulated baking paint), and the strength increment of the alloy before and after baking paint was measured. The specific results are shown in Table 2. At the same time, the natural age hardening curve of the 5# alloy after solid solution treatment and placed at room temperature is made, and the specific results are shown in figure 1 .
Embodiment 2
[0043] The 1mm cold-rolled plate of 6# alloy obtained by the above method was subjected to solution treatment at 525°C for 10 minutes in a salt bath furnace, and then water quenched directly. Divide the cold-rolled sheets after quenching into two groups. One group is placed in an aging furnace within 6 minutes after quenching for pre-aging treatment at 80°C for 12 hours, and then placed at room temperature for 7 days to obtain the T4P state; the other group is directly placed in the The T4 state was obtained at room temperature for 7 days. Finally, the T4P state and T4 state alloys were artificially aged at 180°C / 30min (simulated baking paint), and the strength increment of the alloy before and after baking paint was measured. The specific results are shown in Table 2. At the same time, the natural age hardening curve of the 6# alloy after quenching and placed at room temperature is made, and the specific results are shown in figure 1 . In order to compare the effect of pre-...
Embodiment 3
[0045] The 1 mm cold-rolled plate of 7# alloy obtained by the above method was subjected to solution treatment at 525 ° C for 10 min in a salt bath furnace, and then directly water quenched. Divide the cold-rolled sheets after quenching into two groups. One group is placed in an aging furnace within 6 minutes after quenching for pre-aging treatment at 80°C for 12 hours, and then placed at room temperature for 7 days to obtain the T4P state; the other group is directly placed in the The T4 state was obtained at room temperature for 7 days. Finally, the T4P state and T4 state alloys were artificially aged at 180°C / 30min (simulated baking paint), and the strength increment of the alloy before and after baking paint was measured. The specific results are shown in Table 2.
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