基于正交设计等离子技术制备3D打印用球形钨粉  

Optimization of the Spheroidizing Tungsten Powder by Plasma Through Orthogonal Test Based on Orthogonal Experimental Design

作　　者：侯玉柏 于月光 郭志猛 HOU Yubai;YU Yueguang;GUO Zhimeng(Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;BGRIMM Technology Group,Beijing 100160;Beijing Key Laboratory of Special Coating Materials and Technology,Beijing 102206,China)

机构地区：[1]北京科技大学新材料技术研究院,北京100083 [2]矿冶科技集团有限公司,北京100160 [3]特种涂层材料与技术北京市重点实验室,北京102206

出　　处：《有色金属工程》2020年第11期6-10,共5页Nonferrous Metals Engineering

基　　金：国家重点研发计划(2017YFB0305800)。

摘　　要：基于正交设计,使用Tek-15 kW感应耦合等离子球化设备对工业用钨粉进行球化。选择设备功率、送粉速率、主气流量作为主要工艺参数。使用SEM分析球化后的钨粉,最终确定最优的参数为功率13 kW,送粉速率16 g/min,主气流量5 mL/min。在最优工艺参数下球化制粉,可以得到钨粉球化率接近100%,产品回收率为92.6%。The industrial tungsten powder was spheroidized by induction exchange plasma spheroidizing equipment based on the orthogonal design.The spheroidization parameters,such as equipment power,powder feeding rate,and main air flow are examined to obtain the optimize the spherical tungsten powder.Scanning electron microscope(SEM)has been employed to check the spheroidizing effect.The optimal spheroidization parameters for equipment power,powder feeding rate,and main air flow are 13 kW,16 g/min,and 5 mL/min,respectively.The spheroidization rate is nearly 100%with a high product recovery rate of 92.6%.

关 键 词：正交实验 粉末冶金 钨粉 等离子体 球化 

分 类 号：TG174.4[金属学及工艺—金属表面处理]