用W_(18)O_(49)制造超细钨粉及超细碳化钨粉  

THE PREPARATION OF ULTRAFINE TUNGSTEN POWDER AND ULTRAFINE TUNGSTEN CARBIDE POWDER FROM W_(18)O_(49)

作　　者：陈绍衣[1] 

机构地区：[1]中南工业大学有色冶金系,长沙410083

出　　处：《中南工业大学学报》1997年第5期456-460,共5页Journal of Central South University of Technology(Natural Science)

摘　　要：在适当的温度和气氛下,于回转炉中,实现了仲钨酸铵(APT)转变成W_(18)O_(49)的连续生产。在相同的氢还原和碳化工艺条件下,W_(18)O_(49)比黄色或蓝色氧化钨制得的钨粉、碳化钨粉细和均匀,而且不易长大.以W_(18)O_(49)为原料用传统工艺制取超细钨粉、超细碳化钨粉是合理的、先进的。The continuous production of W_(18)O_(49) from APT can be achieved at proper temperature and in proper atmosphere in the rotary furnace. Under the same conditions for hydrogen reduction and carbonization, and by using violet W_(18)O_(49) instead of yellow or blue tungsten oxide, much finer, hardly growing and more uniform tungsten powder and tungsten carbide powder can be obtained. And therefore, The production of ultrafine tungsten powder and ultrafine tungsten carbide powder from W_(18)O_(49) is both more reasonable and advanced in the conventional process.

关 键 词：氢还原 超细钨粉 超细碳化钨粉 钨粉 

分 类 号：TF123.24[冶金工程—粉末冶金]