钨粉的等离子体球化

Plasma Spheroidization of Tungsten Powder

综述了 球形钨 粉的应用 背景和 国内外的 研究概况 ，尝试了 一种改进 的等离 子体球化 工艺。用 Ａｒ 做 工作气 体，将费氏 粒度为 １５ μｍ 的 工业钨 粉用 Ｈ２ 送入 等 离子 体炬 中 熔化 ，熔 融的 钨颗 粒直接导入 水中冷却 ，可得到 良好球 化效果的 球形钨粉 。

The application and study of spheroidal W powder both at home and abroad is reviewed in the paper In order to produce the spheroidal tungsten powder at high efficiency and low cost, a modified conventional plasma equipment as well as the spheroidization process was investigated in lab. FSSS 15 μm tungsten powder was sent into the induction coupled plasma torch with H 2. The torch was initiated with pure Ar. After melting in the plasma torch, the molten W particles were directly injected into the water for cooling As a result , well spheroidized powder was obtained.