1. Introduction

RF plasma has the good features of high energy density, high heating intensity, plasma arc of large volume, simple process, etc. Also because it is electrodeless there is no pollution on product caused by electrode evaporation.

Principle: inert gas (argon) is ionized to be stable plasma torch of high temperature argon under the effect of high frequency power supply; raw materials of powder are introduced into plasma torch by carrier gas (nitrogen) through powder feeder, powder particles absorb much heat when in plasma torch of high temperature and their surfaces melt rapidly; powders are introduced into reactor at a tremendous rate and then they are cooled fastly under inert gas and solidified into spherical powder under the effect of surface tension; and powders are collected in the collector.

2. Features

1. Combined modular multifunctional raw material conveying device,including liquid ,gas and powder raw materials uniform and precise feeding device, filament raw material uniform and precise feeding device, block vacuum melting precision flow limiting and pouring device; it can meet different conditions of raw materials produce;
2. Plasma power supply and plasma generator are also key technological innovations of this technology. In order to improve the efficiency of atomization and the stable progress of the atomization process, this equipment technology offers for the first time the ultra-high temperature plasma generator and types of the selection of plasma gas, with the reasonable matching of gas flow and metal flow rate to produce f full range of high-performance metal elements and metals. Alloy micro/nanopowder materials, can also be used in the manufacturing of multiphase compound powder material, including chemically active metals, Mg/Al/Ti/Zr and their alloys, etc. high-temperature metals w/Mo/Nb/Ta and their alloy ,etc,; oxidation,nitride, etc,.
3. The professionally designed chemical reaction chamber can produce a variety of high-complexity,high purity,multi-element powder materials by reaction;
4. The key technical points of precise intelligent control of powder particle size, oxygen content and fluidity are put forward;

3. Technical Parameters

4. Equipment Structures

RF plasma spheroidization powder manufacturing equipment is mainly consisted of the following parts:

1. RF plasma torch;

2. RF plasma power supply;

3. Gas and powder feeding system;

4. Reactor-collector and holder;

5. Vacuum pumping system;

6. Electrical controlling and measuring system;

7. Water chiller unit;