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鎢粉注入對(duì)等離子溫度的影響效應(yīng)及球化實(shí)驗(yàn)研究
作者:
作者單位:

1.電子科技大學(xué)信息地學(xué)研究中心;2.核工業(yè)西南物理研究院;3.南華大學(xué)電氣工程學(xué)院

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基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)11805058,11535003),四川省青年科技創(chuàng)新研究團(tuán)隊(duì)專項(xiàng)計(jì)劃(項(xiàng)目號(hào)2016TD0015)


Experimental Investigation on the effect of Tungsten Powder Injection on the Plasma Temperature and Powder Spheroidization
Author:
Affiliation:

1.University of Electronic Science and Technology of China;2.Southwestern Institute of Physics

Fund Project:

National Natural Science Foundation of China (Grant Nos.11805058, 11535003), Special Plan of Youth Science and Technology Innovation Research Team of Sichuan Province (Grant No.2016TD0015)

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    摘要:

    對(duì)前驅(qū)體粉體顆粒注入到等離子中的等離子溫度變化情況進(jìn)行研究可為粉體球化工藝優(yōu)化提供參考。本文采用單一因素法研究了鎢（W）粉注入前后不同功率及不同位置處等離子射流發(fā)射光強(qiáng)及溫度的變化規(guī)律，并對(duì)粒度D50=20±5μm的W粉進(jìn)行了球形化處理及性能表征。結(jié)果表明：W粉顆粒的注入使等離子發(fā)射光強(qiáng)、溫度均下降；隨著功率增加，對(duì)等離子溫度的影響效應(yīng)減弱；當(dāng)P=56kW時(shí)，球化率與衛(wèi)星率分別約為95%和21%，粉體的流動(dòng)性及密度均明顯改善。

    Abstract:

    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.

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陳倫江,陳文波,劉川東,童洪輝,趙青.鎢粉注入對(duì)等離子溫度的影響效應(yīng)及球化實(shí)驗(yàn)研究[J].稀有金屬材料與工程,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.]
DOI：10.12442/j. issn.1002-185X.20181068

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歷史
  • 收稿日期:2018-10-20
  • 最后修改日期:2018-11-30
  • 錄用日期:2018-12-05
  • 在線發(fā)布日期: 2019-11-01
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