直接还原碳化法制备超细碳化钨粉的工艺研究  

On the Preparation of Ultrafine WC Powder by Direct Reduction & Carburization Method

作　　者：王玉香[1] 文小强[1] 周健[1] 

机构地区：[1]赣州有色冶金研究所,江西赣州341000

出　　处：《中国钨业》2011年第6期39-42,共4页China Tungsten Industry

基　　金：江西钨业集团有限公司科研基金资助项目(JW-09B-09)

摘　　要：采用三氧化钨直接还原碳化法制备超细碳化钨粉,研究了碳化温度,碳化时间及配碳量等工艺参数对合成产物的物相和颗粒形貌的影响,并对反应机理进行了探讨。结果表明,在氮气气氛下,采用直接还原碳化法制备超细碳化钨粉的最佳工艺参数为:碳化温度1200℃,碳化时间3h,配碳量0.21。Ultrafine WC powder was prepared by direct reduction carburization method by using tungsten trioxide as raw materials.This paper studies the effects of carbonization temperature,carbonization time and the carbon content on the phase and particle morphology of synthetic product by analyzing its reaction mechanism.Results show that ultrafine WC powder can be best synthesized by direct reduction carburization processing at 1 200 ℃ for three hours when carbon content is 0.21 under flowing nitrogen gas.

关 键 词：直接还原碳化法 超细碳化钨粉 形貌 工艺研究 

分 类 号：TF125.3[冶金工程—粉末冶金]