Large-specification aluminum alloy round bar and casting method thereof
A super-sized, aluminum alloy technology, applied in the field of aluminum alloy casting, can solve the problems of low mechanical properties of 6061 aluminum alloy, small diameter of round rod, easy cracking of round rod, etc., achieve uniform refinement of microstructure, eliminate casting stress, excellent The effect of the refinement effect
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Embodiment 1
[0045] The mass percentage of alloy composition of super large aluminum alloy round bar is as follows
[0046] Cu: 0.20~0.30 Mn: 0.00~0.05 Mg: 0.90~1.10
[0047] Zn: 0.00~0.05 Ti: 0.02~0.05 Cr: 0.10~0.15
[0048] Si: 0.48~0.50 Fe: 0.10~0.30 The balance is Al
[0049] Casting method of aluminum alloy round bar:
[0050] (1) Ingredients: calculate the 99.7% purity of the remelted aluminum ingot and the 6061 aluminum alloy return material dosage based on the alloy composition, and then mix the ingredients. The 6061 aluminum alloy return material amount accounts for 0.1-30% of the total input. Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.
[0051] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end of feeding. Heat in the smelting f...
Embodiment 2
[0059] It is different from the alloy composition percentage of the aluminum alloy rod in Example 1, as follows
[0060] Cu: 0.20~0.30 Mn: 0.00~0.05 Mg: 0.90~1.10
[0061] Zn: 0.00~0.05 Ti: 0.02~0.05 Cr: 0.15~0.20
[0062] Si: 0.50~0.52 Fe: 0.30~0.45 The balance is Al
[0063] Casting method of aluminum alloy round bar:
[0064] (1) Ingredients: According to the alloy composition, calculate the amount of remelted aluminum ingot with a purity of 99.7% and 6061 aluminum alloy return material, and then mix and batch, the 6061 aluminum alloy return material accounts for 30-60% of the total input, calculate Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.
[0065] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end of feeding. Heat in t...
Embodiment 3
[0073] It is different from the alloy composition percentage of the aluminum alloy rod in Example 1, as follows
[0074] Cu: 0.20~0.30 Mn: 0.01~0.04 Mg: 0.90~1.10
[0075] Zn: 0.01~0.04 Ti: 0.02~0.05 Cr: 0.12~0.18
[0076] Si: 0.50~0.52 Fe: 0.20~0.40 The balance is Al
[0077] Casting method of aluminum alloy round bar:
[0078] (1) Ingredients: According to the alloy composition, calculate the amount of remelted aluminum ingot with a purity of 99.7% and the amount of 6061 aluminum alloy return material, and then mix the ingredients. The percentage of 6061 aluminum alloy return material to the total input amount is 25-45%. Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.
[0079] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end o...
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