新型掺杂钨生产工艺

A New Type of Production Process of Doped Tungsten

摘要:

采用水溶性极好的偏钨酸铵（ＡＭＴ）同Ｋ、Ａｌ、Ｓｉ化合物的盐溶液混合，经喷露干燥制粉，成功地实现了液－液掺杂制取高温抗下垂掺杂钨丝。结果证明：该方法所制的掺杂钨粉、条、丝性能不同于固－液常现掺杂。几组试验的钨丝高温蠕变残余伸长值小于１．０ｍｍ，一级（ＷＡｌ１）钨丝比例１００％。

Abstract:

he doped tungsten wires of resistance to high-temperature creep-sag have been successfully produced. By means of liquid-liquid mixing easily water-soluable AMT with K. Al. Si and spraying and drying. The properties of the doping powders, bars and wires of new process are different from those of common doping method. The average value of remanent elongation is less than 1.0mm for several high-temperature creep-sag tests.The proportion of first-grade wires is about 100%.