High-resistance electrophoretic aluminum profile being resistant to cracking caused by bending and preparation method of aluminum profile
An aluminum profile and bending-resistant technology, applied in the field of aluminum alloy materials, can solve the problems of poor resistance to bending cracking, the qualified rate of finished products needs to be further improved, and cracks are easy to occur, so as to improve plasticity and strength, uniform chemical composition distribution, and cracking. The effect of reducing the phenomenon of
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[0020] Example 1
[0021] The present invention proposes an electrophoretic aluminum profile with high resistance to bending and cracking. The base material of the aluminum profile includes Si 0.47%, Mg 0.68%, Fe 0.25%, Mo 0.12%, Mn 0.30%, Cr 0.05%, Cu0.03%, Zn 0.10%, the balance is Al and unavoidable impurities, each impurity is ≤0.05%, and the total impurity is 0.15%.
[0022] The present invention also proposes a method for preparing the above-mentioned anti-bending-cracking and high-resistance electrophoretic aluminum profile, which includes the following steps:
[0023] S1, smelting: according to the base material composition of the aluminum profile, do the ingredients, smelt, the smelting temperature is 745-755℃, refining and slagging, casting, to obtain the blank;
[0024] S2, homogenization treatment: the blank is kept at 550°C for 6h for homogenization treatment, air cooling;
[0025] S3. One-time extrusion: heat the homogenized billet to 440°C, and extrude the material with a...
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[0030] Example 2
[0031] The present invention proposes an electrophoresis aluminum profile with high resistance to bending and cracking. The base material of the aluminum profile includes Si 0.49%, Mg 0.78%, Fe 0.33%, Mo 0.18%, Mn 0.22%, Cr 0.03%, Cu0.05%, Zn 0.07%, the balance is Al and unavoidable impurities, each impurity is ≤0.05%, and the total impurity is 0.12%.
[0032] The present invention also proposes a method for preparing the above-mentioned anti-bending-cracking and high-resistance electrophoretic aluminum profile, which includes the following steps:
[0033] S1, smelting: according to the base material composition of the aluminum profile, do the ingredients, smelt, the smelting temperature is 750-760℃, refining and slagging, casting, to obtain the blank;
[0034] S2, homogenization treatment: the blank is kept at 560°C for 8h for homogenization treatment, air cooling;
[0035] S3. One-time extrusion: heat the homogenized billet to 450°C, and extrude the material with a...
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[0040] Example 3
[0041] The present invention provides an electrophoretic aluminum profile with high resistance to bending and cracking. The base material of the aluminum profile includes Si 0.55%, Mg 0.78%, Fe 0.27%, Mo 0.15%, Mn 0.25%, Cr in weight percentage. 0.04%, Cu0.03%, Zn 0.05%, the balance is Al and unavoidable impurities, each impurity is ≤0.04%, and the total impurity is 0.10%.
[0042] The present invention also proposes a method for preparing the above-mentioned anti-bending-cracking and high-resistance electrophoretic aluminum profile, which includes the following steps:
[0043] S1, smelting: according to the base material composition of the aluminum profile, do the ingredients, smelt, the smelting temperature is 745-750℃, refining and slagging, casting, to obtain the blank;
[0044] S2, homogenization treatment: the blank is kept at 550°C for 6.5h for homogenization treatment, air cooling;
[0045] S3. One-time extrusion: heat the homogenized billet to 440°C, and ext...
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