摘要
粉末注射成形技术作为一种先进的成形方法受到广泛的关注,但由于硬质合金及注射成形工艺自身的特点,硬质合金注射成形技术仍存在几个急待解决的问题,这也是硬质合金注射成形产业一直徘徊不前的主要原因.作者分析了钨钴硬质合金注射成形过程中存在的缺陷控制、碳含量控制、尺寸精度控制和提高制品为学性能等问题,给出了相应的解决方法.
PIM (Powder Injection Molding) is an advanced forming technology and is drawing more and moreattention. Power Inection Molding of cemented carbides is a complicated processing due to the materi-als' characteristics. There are still several serious problems to be solved to improve the technology. Inthis paper, defect control, carbon control, dimension control and elevation of its mechanical propertiesare discussed and some measures were proposed to solve the problems.
出处
《粉末冶金材料科学与工程》
EI
2001年第3期173-178,共6页
Materials Science and Engineering of Powder Metallurgy
基金
国家"973"计划(G2000067203-1)
国家"863"计划资助项目(715-090-090)
关键词
硬质合金
注射成形
控碳
尺寸精度
力学性能
cemented carbides
powder injection molding
defect control
carbon control
dimension control
