Copper-based composite material used for haulage motor electric conduction parts and preparing method of copper-based composite material
A technology for copper-based composite materials and components, applied in conductive materials, conductive materials, electrical components, etc., can solve the problems of Sn element segregation and other problems, achieve the effect of improving conductivity and strength, ensuring conductivity and uniform distribution
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Embodiment 1
[0027] Sn 0.05%, Al according to mass percentage 2 o 3 0.1% and the rest of the electrolytic copper weigh these three raw materials, of which Al 2 o 3 The particle size is 100nm. Wherein the mass percentage of impurity iron contained in the raw material is less than 0.01%, and the lead content is less than 0.01%.
[0028] Add the weighed electrolytic copper into a 300kg intermediate frequency electric furnace for smelting, gradually raise the temperature to 1150°C, and the smelting time is 50 minutes. Add the weighed tin ingot into the smelting furnace, continue smelting for 15 minutes, keep warm to 1100°C, and keep warm for 20 minutes. Alumina (Al 2 o 3 ) powder is added to the alloy solution that has been kept warm, the temperature is raised to 1200°C, and the stirring device is turned on for mechanical stirring, the stirring speed is 400r / min, and the stirring time is 15 minutes. After the stirring is completed, the temperature is lowered to 1050°C. The composition...
Embodiment 2
[0034] Sn 0.2%, Al according to mass percentage 2 o 3 0.3% and the rest of the electrolytic copper weigh these three raw materials, of which Al 2 o 3 The particle size is 10 μm. Wherein the mass percentage of impurity iron contained in the electrolytic copper is less than 0.01%, and the lead content is less than 0.01%.
[0035] Add the weighed electrolytic copper into a 300kg intermediate frequency electric furnace for smelting, gradually raise the temperature to 1150°C, and the smelting time is 55 minutes. Add the weighed tin ingot into the smelting furnace, continue smelting for 10 minutes, keep warm to 1100°C, and keep warm for 25 minutes. Alumina (Al 2 o 3 ) powder is added to the alloy solution that has been kept warm according to the proportion, the temperature is raised to 1210°C, and the stirring device is turned on for mechanical stirring. The stirring speed is 400r / min, and the stirring time is 15min. After the stirring is completed, the temperature is lowere...
Embodiment 3
[0041] Sn 0.25%, Al according to mass percentage 2 o 3 0.5% and the rest of the electrolytic copper weigh these three raw materials, of which Al 2 o 3The particle size is 100 μm. Wherein the mass percentage of impurity iron contained in the electrolytic copper is less than 0.01%, and the lead content is less than 0.01%.
[0042] Add the weighed electrolytic copper into a 300kg intermediate frequency electric furnace for smelting, gradually raise the temperature to 1150°C, and the smelting time is 60 minutes. Add the weighed tin ingot into the smelting furnace, continue smelting for 15 minutes, keep warm to 1100°C, and keep warm for 30 minutes. Alumina (Al 2 o 3 ) powder was added to the alloy solution that had been kept warm, the temperature was raised to 1210° C., and the stirring device was turned on for mechanical stirring. The stirring speed was 400 r / min, and the stirring time was 15 minutes. After the stirring is completed, the temperature is lowered to 1050°C. ...
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