| 采用正交试验法优化等离子制备球形钨粉 |
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| 引用本文： | 侯玉柏,韩兆新,于月光.采用正交试验法优化等离子制备球形钨粉[J].热喷涂技术,2018,10(1):23-28. |
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| 作者姓名： | 侯玉柏 韩兆新 于月光 |
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| 作者单位： | 北京矿冶科技集团有限公司;北矿新材科技有限公司 |
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| 摘 要： | 本文采用正交试验的方法优化等离子球化钨粉的试验参数,最终确定最优的参数为:电压75V,电流500A,送粉速度50g/min,喷射距离50cm,主气流量1800ml/min。球化后的钨粉流动性由17.7s/50g变化到5.8s/50g,球化后是球化前的32.8%,松装密度由原来的4.94g/cm~3提高到10.84 g/cm~3,增加了一倍有余。
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| 关 键 词： | 正交试验 粉末冶金 钨粉 等离子体 球化 |
Optimization of the Spheroidizing Tungsten Powderby Plasma Through Orthogonal Test |
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| HOU Yu-bai,HAN Zhao-xin and YU Yue-guang.Optimization of the Spheroidizing Tungsten Powderby Plasma Through Orthogonal Test[J].Thermal Spray Technology,2018,10(1):23-28. |
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| Authors: | HOU Yu-bai HAN Zhao-xin and YU Yue-guang |
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| Affiliation: | BGRIMM Technology Group,BGRIMM Adcanced Materials Science & Technology Co.,Ltd. and BGRIMM Technology Group |
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| Abstract: | The parameters of the spheroidizing tungsten powder by plasma were optimized through orthogonal test. The optimized parameters were confirmed finally: the voltage was 75V, the current was 500A, the feeding rate was 50g/min, the spraying distance was 50cm, the main fuel flow was 1800 ml/min. The flowing rate and the apparent density of the raw tungsten powder were 17.7s/50g and 4.94g/cm3 respectively. They have improved to be 5.8s/50g and 10.84 g/cm3 after spheroidizing respectively. The flowing rate of the spheroidizing tungsten powder was 32.8% of the raw one and the apparent density of it was doubled. |
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| Keywords: | Orthogonal test Powder metallurgy Tungsten powder Plasma Spheroidization |
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