A corrosion-resistant aluminum alloy profile
A technology for corrosion-resistant aluminum alloys and aluminum alloy profiles, applied in the field of metal material manufacturing, to achieve excellent corrosion resistance and tensile strength, production process and cycle shortening
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Embodiment 1
[0025] A production method of corrosion-resistant aluminum alloy profiles:
[0026] (1) Ingredients and melting:
[0027] Ingredients according to mass percentage: Cu 8%, Fe 3%, Mn 5%, Mg 2%, Zn 1.5%, Si 0.5%, Ni 0.1%, Ti 0.05%, the rest is Al, smelting at high temperature for 6 hours to obtain aluminum alloy melt;
[0028] (2) Horizontal continuous casting:
[0029] The obtained aluminum alloy solution is subjected to horizontal continuous casting and cleaned;
[0030] (3) Continuous extrusion:
[0031] The extrusion speed is 9r / min, the rounded corner of the die entrance is r=0.2mm, and the aluminum alloy profile is obtained;
[0032] (4) Secondary aging heat treatment:
[0033] Level 1: The temperature is 120°C, the time is 7 hours, and then the aluminum alloy profile is water-cooled or air-cooled to room temperature;
[0034] Level 2: The temperature is 220°C, the time is 80 minutes, and then the aluminum alloy profile is water-cooled or air-cooled to room temperatur...
Embodiment 2
[0036] A production method of corrosion-resistant aluminum alloy profiles:
[0037] (1) Ingredients and melting:
[0038] Ingredients according to mass percentage: Cu 3%, Fe 2%, Mn 5%, Mg 1%, Zn 1.7%, Si 0.3%, Ni 0.1%, Ti 0.05%, the rest is Al, smelting at high temperature for 8 hours to obtain aluminum alloy melt;
[0039] (2) Horizontal continuous casting:
[0040] The obtained aluminum alloy solution is subjected to horizontal continuous casting and cleaned;
[0041] (3) Continuous extrusion:
[0042] The extrusion speed is 6r / min, the rounded corner of the die entrance is r=0.4mm, and the aluminum alloy profile is obtained;
[0043] (4) Secondary aging heat treatment:
[0044] Level 1: The temperature is 100°C, the time is 10h, and then the aluminum alloy profile is water-cooled or air-cooled to room temperature;
[0045] Level 2: The temperature is 180°C, the time is 100 minutes, and then the aluminum alloy profile is water-cooled or air-cooled to room temperature. ...
Embodiment 3
[0047] A production method of corrosion-resistant aluminum alloy profiles:
[0048] (1) Ingredients and melting:
[0049] Ingredients according to mass percentage: Cu 3%, Fe 5%, Mn 6%, Mg 1.5%, Zn 1.1%, Si 0.4%, Ni 0.1%, Ti 0.05%, the rest is Al, smelting at high temperature for 7 hours to obtain aluminum alloy melt;
[0050] (2) Horizontal continuous casting:
[0051] The obtained aluminum alloy solution is subjected to horizontal continuous casting and cleaned;
[0052] (3) Continuous extrusion:
[0053] The extrusion speed is 8r / min, and the rounded corner of the die entrance is r=0.3mm to obtain aluminum alloy profiles;
[0054] (4) Secondary aging heat treatment:
[0055] Level 1: The temperature is 110°C, the time is 9 hours, and then the aluminum alloy profile is water-cooled or air-cooled to room temperature;
[0056] Level 2: The temperature is 188°C, the time is 88 minutes, and then the aluminum alloy profile is water-cooled or air-cooled to room temperature. ...
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