稀有金属与硬质合金
稀有金屬與硬質閤金
희유금속여경질합금
RARE METALS AND CEMENTED CARBIDES
2009年
4期
18-21
,共4页
一步还原法%正交试验%(W-Ti-Ta-Nb)C复合碳化物
一步還原法%正交試驗%(W-Ti-Ta-Nb)C複閤碳化物
일보환원법%정교시험%(W-Ti-Ta-Nb)C복합탄화물
direct reduct ion%orthogonal experiment%compound carbide (W-Ti-Ta-Nb)C
研究了一步还原法制备(W-Ti-Ta-Nb)C复合碳化物过程中,不同煅烧温度、煅烧时间和混料时间对产品固溶相比例、化合碳含量、游离碳含量的影响.通过正交试验优化得出最佳制备工艺条件为:煅烧温度2 100 ℃,煅烧时间50 min,混料时间3 h.所得复合碳化物粉末为100%的固溶相,其中化合碳的含量为10.67%,游离碳的含量为0.15%.
研究瞭一步還原法製備(W-Ti-Ta-Nb)C複閤碳化物過程中,不同煅燒溫度、煅燒時間和混料時間對產品固溶相比例、化閤碳含量、遊離碳含量的影響.通過正交試驗優化得齣最佳製備工藝條件為:煅燒溫度2 100 ℃,煅燒時間50 min,混料時間3 h.所得複閤碳化物粉末為100%的固溶相,其中化閤碳的含量為10.67%,遊離碳的含量為0.15%.
연구료일보환원법제비(W-Ti-Ta-Nb)C복합탄화물과정중,불동단소온도、단소시간화혼료시간대산품고용상비례、화합탄함량、유리탄함량적영향.통과정교시험우화득출최가제비공예조건위:단소온도2 100 ℃,단소시간50 min,혼료시간3 h.소득복합탄화물분말위100%적고용상,기중화합탄적함량위10.67%,유리탄적함량위0.15%.
The compound carbide (W-Ti-Ta-Nb)C was prepared by direct reduction.The influences of different calcination temperature and duration and mixing time on the contents of solid solution phase,combined carbon and free carbon in the prepared (W-Ti-Ta-Nb)C were investigated.By orthogonal experiments,the optimal carbonization parameters are obtained as follows:calcination temperature 2 100 ℃,calcination duration 50 min and mixing duration 3 h.The final product is completely in the state of solid solution phase,where the content of combined carbon is 10.67% and free carbon is 0.15%.
