Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第9卷    第3期    总第32期    1999年9月

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文章编号:1004-0609(1999)03-0465-04
微波烧结WC-Co细晶硬质合金的工艺与性能
周     健  程吉平  袁润章  章韵瑾  邱进宇

(武汉工业大学材料复合新技术国家重点实验室, 武汉 430070)

摘 要: 采用微波烧结新技术研究了WC-Co细晶硬质合金的烧结工艺与性能,并同常规烧结工艺进行了比较。结果表明:微波烧结WC-Co细晶硬质合金在1300℃的烧结温度下保温10 min时, 可达到99.8%的相对密度; 烧结温度降低,烧结时间大幅度缩短,且制品的显微晶粒尺寸只有常规烧结的一半;抗弯强度、矫顽磁力、硬度有较大幅度提高。

 

关键字: 微波烧结; 钴钨硬质合金; 工艺; 性能

Property and technology of WC-Co fine grain cemented carbide in microwave sintering
Zhou Jian, Cheng Jiping, Yuan Runzhang, Zhang Yunjin, Qiu Jinyu

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,
Wuhan University of Technology, Wuhan 430070, P.R.China

Abstract:Using the microwave sintering new technology, the technology and property of WC-Co fine grain cemented carbide in microwave sintering was studied and compared with conventional sintering technology. The results show that microwave sintered WC-Co fine grain cemented carbide can reach 99.8% relative density in 1300℃ sintering temperature and 10 min preservation. The microwave sintering not only can reduce sintering temperature and shorten sintering time in large range, but also can decrease micro-grain size of products over less one-half and increase bending strength, coercive force and hardness in large range compared with conventional sintering .

 

Key words: microwave sintering;WC-Co cemented carbide;technology;properties

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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