A kind of method of partial vacuum casting of aluminum alloy
A partial vacuum and aluminum alloy technology, which is applied in the field of aluminum alloy partial vacuum casting, can solve the problems of thick dendrites, high energy consumption, and no specific solution is proposed, and achieve stable dendrite spacing, simple equipment, and improved slag entrainment The effect of the phenomenon
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Embodiment 1
[0036] A method for aluminum alloy partial vacuum casting, comprising the following steps:
[0037] (1) Based on the total weight of the aluminum alloy, the aluminum alloy elements include 4.2% Mg, 0.03% Mn, 0.02% Cr, 0.35% Fe, 0.07% Ti, 0.25% Cu, and 0.25% trace elements %, the balance is Al and other inevitable impurities, the single content of other inevitable impurities is ≤0.05%, and the total amount is ≤0.15%;
[0038] (2) Add aluminum ingots to the smelting furnace of the vacuum electromagnetic guide device, and heat the aluminum ingots in the smelting furnace to melt into melt one;
[0039] (3) Carry out ultrasonic vibration treatment and mechanical stirring treatment to the melt, continue to add the above-mentioned components Mn, Cr, Ti in weight percentage to the smelting furnace, control the temperature of the melt in the smelting furnace to be 650-750 ° C until the alloy is completely Melt, and keep the temperature at 650°C and add Mg 4.18%, until the melt is unif...
Embodiment 2
[0045] A method for aluminum alloy partial vacuum casting, comprising the following steps:
[0046] (1) Based on the total weight of the aluminum alloy, the aluminum alloy elements include Mg5.5%, Mn0.35%, Cr0.25%, Fe0.65%, Ti0.12%, Cu0.45%, Trace elements 0.35%, the balance is Al and other inevitable impurities, the single content of other inevitable impurities is ≤0.05%, and the total amount is ≤0.15%;
[0047] (2) Add aluminum ingots to the smelting furnace of the vacuum electromagnetic guide device, and heat the aluminum ingots in the smelting furnace to melt into melt one;
[0048] (3) Carry out ultrasonic vibration treatment and mechanical stirring treatment to the melt, continue to add the above-mentioned components Mn, Cr, Ti in weight percentage to the smelting furnace, control the temperature of the melt in the smelting furnace to be 650-750 ° C until the alloy is completely Melt, and keep the temperature at 750°C and add Mg 5.42%, until the melt is uniform and melt...
Embodiment 3
[0054] A method for aluminum alloy partial vacuum casting, comprising the following steps:
[0055] (1) Based on the total weight of the aluminum alloy, the aluminum alloy elements include 5.0% of Mg, 0.3% of Mn, 0.15% of Cr, 0.45% of Fe, 0.09% of Ti, 0.32% of Cu, and 0.30% of trace elements %, the balance is Al and other inevitable impurities, the single content of other inevitable impurities is ≤0.05%, and the total amount is ≤0.15%;
[0056] (2) Add aluminum ingots to the smelting furnace of the vacuum electromagnetic guide device, and heat the aluminum ingots in the smelting furnace to melt into melt one;
[0057] (3) Carry out ultrasonic vibration treatment and mechanical stirring treatment to melt one, continue to add the above-mentioned components Mn, Cr, Ti in weight percentage in the smelting furnace, control the melt temperature in the smelting furnace to be 700 ℃ until the alloy is completely melted, And keep the temperature at 700°C and add Mg4.73% to obtain melt ...
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