钨粉的等离子体球化  

Plasma Spheroidization of Tungsten Powder

作　　者：刘正春[1] 王志法[1] 李方 姜国圣[1] 

机构地区：[1]中南工业大学材料科学与工程系,湖南长沙410083 [2]湖南省技术物理研究所,湖南长沙410004

出　　处：《稀有金属与硬质合金》1999年第3期7-10,共4页Rare Metals and Cemented Carbides

摘　　要：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.

关 键 词：钨粉 等离子体 球化 

分 类 号：TF123.24[冶金工程—粉末冶金]