陈伦江,陈文波,刘川东,童洪辉,赵青.钨粉注入对等离子温度的影响效应及球化实验研究[J].稀有金属材料与工程,2019,48(10):3221~3226.[chenlunjiang,chenwenbo,liuchuandong,tonghonghui,zhaoqing.Experimental Investigation on the effect of Tungsten Powder Injection on the Plasma Temperature and Powder Spheroidization[J].Rare Metal Materials and Engineering,2019,48(10):3221~3226.]
钨粉注入对等离子温度的影响效应及球化实验研究
投稿时间:2018-10-20  修订日期:2018-11-30
中文关键词:  射频热等离子  发射光谱  等离子温度  球形钨粉
基金项目:国家自然科学基金资助(项目号11805058,11535003),四川省青年科技创新研究团队专项计划(项目号2016TD0015)
中文摘要:
      对前驱体粉体颗粒注入到等离子中的等离子温度变化情况进行研究可为粉体球化工艺优化提供参考。本文采用单一因素法研究了钨(W)粉注入前后不同功率及不同位置处等离子射流发射光强及温度的变化规律,并对粒度D50=20±5μm的W粉进行了球形化处理及性能表征。结果表明:W粉颗粒的注入使等离子发射光强、温度均下降;随着功率增加,对等离子温度的影响效应减弱;当P=56kW时,球化率与卫星率分别约为95%和21%,粉体的流动性及密度均明显改善。
Experimental Investigation on the effect of Tungsten Powder Injection on the Plasma Temperature and Powder Spheroidization
英文关键词:RF thermal plasma  Emission spectrum  Plasma temperature  Spherical W powders
英文摘要:
      An experimental investgation on the plasma temperature after the precursor powder injection can provide a reference for the process optimization in plasma spheroidization. The effect of tungsten powder injection on the intensity of emission spectrum and plasma temperature were investigated at different position and RF power with a single factor method, and the tungsten powder with the particle size of D50=20±5μm was spheroidization treatment. The results show that the emission intensity and temperature of plasma jets was both decreased after tungsten powder injection. The effect of plasma temperature was weakened with the increase of RF power, and the spheroidization and satellite ratio were about 95% and 21% when P=56kW, respectively. The flow ability and density of powder were significantly improved after plasma spheroidization.
作者单位E-mail
陈伦江 电子科技大学信息地学研究中心核工业西南物理研究院 lunjiangchen@163.com 
陈文波 南华大学电气工程学院  
刘川东 核工业西南物理研究院  
童洪辉 核工业西南物理研究院  
赵青 电子科技大学信息地学研究中心  
摘要点击次数: 81
全文下载次数: 39
查看全文  查看/发表评论  
关闭