Classification Of Aluminum:

(1) According to whether there is alloy composition, aluminum is divided into pure aluminum and aluminum alloy. Aluminum alloy is divided into Al-Mn alloy, Al-Cu alloy, Al-Si alloy and Al-Mg alloy according to the alloy series.

(2) According to the pressure processing capacity, can be divided into deformed aluminum and non-deformed aluminum (such as: cast aluminum).

(3) according to whether heat treatment can be strengthened, aluminum alloy is divided into non-heat treatment strengthened aluminum and heat treatment strengthened aluminum. Aluminum has no isomer, pure aluminum, aluminum manganese alloy, aluminum magnesium alloy and other impossible to improve the strength through heat treatment phase transformation. However, aluminum-copper and aluminum-magnesium-silicon alloys can increase their strength by precipitation of strengthening phase through solution aging, which is called heat treatable strengthened aluminum. The unheat treated aluminum which cannot be strengthened by precipitation of the strengthened phase through solution aging is called unheat treated aluminum.

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