Vacuum hollow-cathode plasmatrons permit heating, melting, and refining of fine powders in plasma during the flight of particles from the introduction zone to a receiver. A powder in plasma is heated through its interaction with electrons and ions. Such a plasmatron exhibits the following performance characteristics: the total heat flow per particle is 10~6-10~7 W/m~2, the operation pressure range is 0.1-100 Pa, the current is 7.5-10 kA, the voltage is 80-100 V, and the working gas is argon. As a result of the electrodynamic interaction of every powder particle with the magnetic field of the plasma column, the powder concentrates at the plasma-column axis and moves only within the plasma column. All of the charged powder is treated. The initial content of impurities in the powder can reach 3 percent [1].
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机译：真空空心阴极等离子加速器可在颗粒从引入区流向接收器的过程中加热，熔化和精制等离子体中的细粉。等离子体中的粉末通过与电子和离子的相互作用而被加热。这种等离子加速器具有以下性能特征：每个粒子的总热流量为10〜6-10〜7 W / m〜2，工作压力范围为0.1-100 Pa，电流为7.5-10 kA，电压为80-100 V，工作气体为氩气。由于每种粉末颗粒与等离子柱磁场的电动力相互作用，使得粉末集中在等离子柱轴上，并且仅在等离子柱内移动。所有带电的粉末均已处理。粉末中杂质的初始含量可以达到3％[1]。
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