【摘要】 高品质球形难熔金属粉末是应用热等静压、热喷涂、注射成型、3D打印等先进粉末冶金制造加工技术,生产高性能难熔金属构件的关键原料。目前球形难熔金属粉末的制备技术主要包含物理化学法、等离子球化法、等离子雾化法和等离子旋转电极法。综述了这4类制粉技术的原理及所制备难熔金属粉末的物理化学性能,并对这4类制粉技术特点及优劣进行评述,指出未来难熔金属粉末制备技术的主要发展方向。更多还原

【Abstract】 High-quality spherical refractory metal powder is the key raw material for the production of high-performance refractory metal components through advanced powder metallurgy manufacturing and processing technologies, such as hot isostatic pressing, thermal spraying, injection molding and 3D printing. At present, the preparation technologies of the spherical refractory metal powder mainly include physical chemistry method, plasma spheroidization method, plasma atomization method and plasma rotating electrode process. In this paper, the principles of these four types of powder producing methods and the physicochemical properties of refractory metal powders are reviewed, and the technical characteristics and advantages of these four types of powder producing methods are remarked, the future development strategies of the refractory powder producing technology are also pointed out.更多还原