Aluminium alloy section bar for structural engineering, and preparation method thereof
A technology of aluminum alloy profiles and structural engineering, applied in the field of aluminum alloys, can solve problems such as low quenching sensitivity, low production efficiency, and poor product quality, and achieve the goals of refined recrystallized grains, improved mechanical properties, and high thermal stability Effect
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Specific embodiment 1:
[0035] A method for preparing aluminum alloy profiles for structural engineering:
[0036] 1) The aluminum alloy of the present invention is prepared according to the conventional method, the total weight percentage of each component is 100%, and the weight percentage is (sampled and analyzed in the casting flow plate): magnesium 0.50%, silicon 0.65%, manganese 0.01%, The aluminum alloy composition with 0.16% chromium, 0.005% titanium, 0.01% iron, 0.01% zinc, 0.01% copper, and the balance of aluminum is cast into an aluminum alloy ingot, and the balance is that the aluminum in the aluminum contains 0.08% impurities , And the same as the impurities contained in existing aluminum, the ingot is a cast rod with a diameter of Φ260mm.
[0037] 2) The aluminum alloy ingot is subjected to high temperature homogenization treatment at 560°C, heated for 5 hours, and then cooled by strong wind or water mist to 150°C, then moved to the atmosphere to continue air cooling ...
Example Embodiment
Specific embodiment 2:
[0042] A method for preparing aluminum alloy profiles for structural engineering:
[0043] 1) The alloy of the present invention is prepared according to the conventional method, and the weight percentages are (sampled in the casting flow plate for chemical composition analysis): magnesium 0.55%, silicon 0.7%, manganese 0.1%, chromium 0.05%, titanium 0.007%, iron 0.2%, The aluminum alloy composition with 0.05% zinc, 0.05% copper, and the balance aluminum is cast into an aluminum alloy ingot, and the balance is that the aluminum in the aluminum contains 0.05% of impurities, which are the same as the impurities contained in existing aluminum, The ingot is a cast rod with a diameter of Φ260mm.
[0044] 2) The aluminum alloy ingot is subjected to high temperature homogenization treatment at 565°C, heated for 7 hours, and then cooled by strong wind or water mist to 150°C, then moved to the atmosphere to continue air cooling to room temperature;
[0045] 3) Cut the...
Example Embodiment
Specific embodiment 3:
[0049] 1) The alloy of the present invention is prepared according to the conventional method, and the weight percentage is (sampled and analyzed in the casting flow plate): magnesium 0.60%, silicon 0.75%, manganese 0.2%, chromium 0.05%, titanium 0.009%, iron 0.30%, The aluminum alloy composition with 0.10% zinc, 0.10% copper, and the balance of aluminum is cast into an aluminum alloy ingot. The balance is that the aluminum in the aluminum contains 0.15% of impurities, which are the same as the impurities contained in existing aluminum. The ingot is a cast rod with a diameter of Φ260mm.
[0050] 2) The aluminum alloy ingot is subjected to high temperature homogenization treatment at 570℃, heated for 10 hours, and then cooled by strong wind or water mist to 150℃, then moved to the atmosphere to continue air cooling to room temperature;
[0051] 3) Cut the ingot into an extruded billet according to the required length (take low-magnification and high-magnifica...
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