Method for synthesizing aluminum alloy powder through carbon thermal reduction method
A technology of aluminum alloy powder and reduction method, which is applied in the field of metal materials, can solve problems such as inability to apply oil extraction technology and insoluble alloys, and achieve the effects of saving industrial production costs, high costs, and improving utilization rates
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Embodiment 1
[0041] The process steps of synthesizing aluminum alloy powder by carbothermal reduction method proposed by the present invention are:
[0042] (1) Aluminum ore crushing: industrial aluminum ore (alumina>45%wt) is crushed with a crusher, and ball milled until the average particle size is less than 100 μm.
[0043] (2) Uniformly mixing zinc oxide with a particle size of less than 50 μm and industrial aluminum ore after ball milling to obtain a mixed powder.
[0044] (3) Mix the mixed powder prepared in step (2) with carbon powder, then react under the protection of argon, and raise the temperature from room temperature to 1100°C at a heating rate of 3°C / min, and keep it warm for 1.5h to make the reaction Fully generate carbides or carbon oxides, then continue to heat up from 1100°C to 1450°C at a rate of 2°C / min, keep it warm for 1.5h, and then cool to room temperature with the furnace; wherein, the mass ratio of mixed powder to carbon powder is 5:1;
[0045] (4) ball-milling...
Embodiment 2
[0048] (1) Aluminum ore crushing: industrial aluminum ore (alumina>45%wt) is crushed with a crusher, and ball milled until the average particle size is less than 100 μm.
[0049] (2) uniformly mixing metal oxides with a particle size of less than 50 μm and ball-milled industrial aluminum ore to obtain a mixed powder, wherein the metal oxide is tin oxide.
[0050] (3) Mix the mixed powder prepared in step (2) with carbon powder, then react under the protection of argon, and raise the temperature from room temperature to 1030°C at a heating rate of 4°C / min, and keep it warm for 2.5h to make the reaction Fully generate carbides or carbon oxides, then continue to heat up to 1300°C at a rate of 3°C / min, keep it warm for 3 hours, and then cool to room temperature with the furnace; wherein, the mass ratio of mixed powder to carbon powder is 5:1;
[0051] (4) Ball milling the reaction synthesis product obtained in step (3) and removing impurities therein to obtain aluminum alloy powde...
Embodiment 3
[0054] (1) Aluminum ore crushing: industrial aluminum ore (alumina>45%wt) is crushed with a crusher, and ball milled until the average particle size is less than 100 μm.
[0055] (2) Uniformly mixing metal oxides with a particle size of less than 50 μm and ball-milled industrial aluminum ore to obtain a mixed powder, wherein the metal oxide is a mixture of gallium oxide and tin oxide.
[0056] (3) Mix the mixed powder prepared in step (2) with carbon powder, then react under the protection of argon, and raise the temperature from room temperature to 1000°C at a heating rate of 5°C / min, and keep it warm for 3h to make the reaction fully Generate carbides or carbon oxides, then continue to heat up to 1400°C at a rate of 4°C / min, keep it warm for 2 hours, and then cool to room temperature with the furnace; wherein, the mass ratio of mixed powder to carbon powder is 5:1;
[0057] (4) Ball milling the reaction synthesis product obtained in step (3) and removing impurities therein t...
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