Anode aluminum oxide base material for aluminum veneer curtain wall and preparation method for anode aluminum oxide base material
An anodized aluminum and anodic oxidation technology, applied in the direction of anodic oxidation, can solve the problems of high production cost, high cost of raw materials, low surface roughness, etc., to improve the appearance of the anode, high product yield, strong competition force effect
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Embodiment 1
[0021] An aluminum alloy plate and strip for curtain wall, its composition is calculated by mass fraction, Si: 0.10%, Fe: 0.16%, Cu: 0.06%, Mg: 0.8%, Ti: 0.011%, and the balance is Al;
[0022] The preparation method comprises the following steps:
[0023] 1) After melting the aluminum ingot at 740°C, let it stand for 2 hours, and then cast it at 690°C to obtain a large slab ingot with a size of 650×1350×8000mm;
[0024] 2) After sawing the ingot to 400mm from the head and tail and milling the upper and lower surfaces by 30mm, the ingot is heated in a heating furnace. After the metal temperature is 440°C and kept for 2 hours, it is hot-rolled to a final rolling temperature of 300°C and a thickness of 5.0mm;
[0025] 3) Then the 5.0mm billet is produced according to the following cold rolling process:
[0026] 5.0-3.0-2.0-intermediate annealing-1.5,
[0027] The cold rolling deformation before intermediate annealing is 60%, the cold rolling roll Ra0.35μm, Rz1.8μm, the surface...
Embodiment 2
[0030] An aluminum alloy plate and strip for curtain wall, its composition is calculated by mass fraction, Si: 0.20%, Fe: 0.30%, Cu: 0.10%, Mg: 1.3%, Ti: 0.02%, and the balance is Al;
[0031] The preparation method comprises the following steps:
[0032] 1) After melting the aluminum ingot at 770°C, let it stand for 1 hour, and then cast it at 710°C to obtain a large slab ingot with a size of 520×1600×7000mm;
[0033] 2) After sawing the ingot to 300mm from the head and tail and milling the upper and lower surfaces by 5mm, the ingot is heated in a heating furnace. After the metal temperature is 460°C for 4 hours, it is hot-rolled to a final rolling temperature of 260°C and a thickness of 8.0mm;
[0034] 3) Then the 8mm billet is produced according to the following cold rolling process:
[0035] 8.0-6.0-4.0-intermediate annealing-2.0,
[0036] The cold rolling deformation before intermediate annealing is 50%, the cold rolling roll Ra0.55μm, Rz3.0.μm, the surface roughness of...
Embodiment 3
[0039] An aluminum alloy plate and strip for curtain wall, its composition is calculated by mass fraction, Si: 0.12%, Fe: 0.18%, Cu: 0.08%, Mg: 0.7%, Ti: 0.016%, and the balance is Al;
[0040] The preparation method comprises the following steps:
[0041] 1) After melting the aluminum ingot at 750°C, let it stand for 1.5h, and then cast it at 700°C to obtain a large slab ingot with a size of 520×1100×3600mm;
[0042] 2) After sawing the ingot to 200mm from the head and tail and milling the upper and lower surfaces by 15mm, the ingot is heated in a heating furnace. After the metal temperature is 450°C and kept for 10h, it is hot-rolled to a final rolling temperature of 350°C and a thickness of 10.0mm;
[0043] 3) Finally, the 10.0mm billet is produced according to the following cold rolling process:
[0044] 12.0-7.0-intermediate annealing-6.0,
[0045] The cold rolling deformation before intermediate annealing is 42%, the cold rolling roll Ra0.40μm, Rz2.6μm, the surface rou...
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