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陈文波,陈伦江,刘川东,程昌明,童洪辉.射频等离子体球化中钼粉颗粒加热过程的数值模拟[J].稀有金属材料与工程(英文),2019,47(3):859~864.[CHEN Wen-bo,CHEN Lun-jiang,Liu Chuan-dong,CHENG Chang-ming and TONG Hong-hui.Numerical simulation of heating process of Molybdenum powder in radio frequency plasma spheroidization[J].Rare Metal Materials and Engineering,2019,47(3):859~864.]
Numerical simulation of heating process of Molybdenum powder in radio frequency plasma spheroidization
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Received:July 25, 2017  Revised:September 06, 2017
DOI:
Key words: radio frequency plasma  molybdenum particles  heating process  numerical simulation
Foundation item:国家自然科学基金资助(项目号11535003)
Author NameAffiliation
CHEN Wen-bo,CHEN Lun-jiang,Liu Chuan-dong,CHENG Chang-ming and TONG Hong-hui  
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Abstract:
      Study on heating process of molybdenum particles in radio frequency plasma can provide theoretical guidelines for improving preparation process of plasma spheroidization. In this paper, the effect of coil current frequency, postion of injection probe tip and powder feeder rate on motion trajectories and heating process of molybdenum particles in plasma have been studied by using numerical simulation method. The research shows that molybdenum particles can be heated to higher temperature during the spheroidization process when coil current frequency is lower beacuase of higher plasma temperature; Chaning of injection probe tip postion have great effect on motion and heating of smaller particles; Decrease of powder feeder rate can increase the energy get from plasma, thus improving the spheroidization effect.