High-silicon aluminum alloy and preparation method thereof
A technology of high-silicon aluminum alloy and copper-clad aluminum alloy, which is applied in the field of high-silicon aluminum alloy and its preparation, can solve the problems of poor wear resistance and poor filtering effect of high-silicon aluminum alloy, and achieve the effect of ensuring wear resistance
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[0023] First example:
[0024] 10.5% by weight of silicon powder, 2.7% by weight of copper-clad aluminum alloy ingots, 0.3% by weight of magnesium ingots, and 87.1% by weight of aluminum ingots were selected for use. Among them: in silicon powder, the weight content of silicon is ≥98.5%, and its particle size is ≤5mm; in copper-clad aluminum alloy, copper is 30% by weight, and aluminum is 70% by weight; , the content of aluminum ≥ 99.7% by weight.
[0025] First put the aluminum ingot into the melting furnace to melt it into aluminum melt.
[0026] Then the aluminum melt is overheated to 760°C, and silicon powder is added to the aluminum melt with a gas carrier; after that, a copper-clad aluminum alloy ingot and a magnesium ingot are added in sequence, and stirred for 10 minutes to obtain a mixed melt.
[0027] After that, the temperature of the mixed melt was adjusted to 740°C, and the mixed melt was refined by blowing argon in the furnace for 20 minutes, and the scum on th...
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