Preparation process of high-performance 7-series aluminum alloy sheet
A preparation process and technology of aluminum alloy, applied in the field of aluminum alloy manufacturing, can solve problems such as poor flatness of coils
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[0031] Example 1
[0032] A preparation process of high-performance 7 series aluminum alloy sheet includes the following steps:
[0033] A. Ingredients: The aluminum alloy raw materials for preparing the 7 series aluminum alloy sheet are mixed according to weight percentage, namely:
[0034] element Si FeCu Mg Mn ZnCr Ni Ti ImpuritiesAl content0.060.121.842.540.045.90.220.040.020.1 margin
[0035] B. Melting and casting: Calculate the amount of each aluminum alloy raw material and transfer the prepared iron, copper, magnesium, industrial silicon and aluminum ingots into the melting furnace to melt to a semi-melted state, and add zinc ingots (zinc ingots Completely submerged to prevent burning) Slag off, so that there is no obvious scum residue on the surface of the molten aluminum. When the aluminum alloy raw materials are completely melted, the alloy composition is tested. When the composition is qualified, the furnace is melted and the furnace temperature is 740~750℃, use chl...
Example Embodiment
[0045] Example 2
[0046] The difference between Example 2 and Example 1 is that in step A, the aluminum alloy raw materials for preparing the 7 series aluminum alloy sheet are mixed according to weight percentage, namely:
[0047] element Si FeCu Mg Mn ZnCr Ni Ti ImpuritiesAl content0.080.111.832.560.055.80.230.040.030.1 margin
Example Embodiment
[0048] Example 3
[0049] The difference between Example 3 and Example 1 is that in step A, the aluminum alloy raw materials for preparing the 7 series aluminum alloy sheet are mixed according to weight percentage, namely:
[0050] element Si FeCu Mg Mn ZnCr Ni Ti ImpuritiesAl content0.050.131.782.530.045.90.240.030.020.1 margin
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