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难点问题有待解决 ,这也是硬质合金注射成形产业一直徘徊不前的主要原因。本文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力学性能等难点问题 ,并给出了相应的解决方法。
PIM(powder injection molding) is an advanced forming technology and is drawing more and more attention.Powder injection molding of cemented carbides is a complicated process due to the materials'characteristics.There are still several big problems to be solved to improve the technology.In this Paper,defect control,carbon control,dimension precision control and its mechanical property improvement are discussed and some measures are proposed to solve the problems.
出处
《稀有金属与硬质合金》
CAS
CSCD
2001年第2期20-24,40,共6页
Rare Metals and Cemented Carbides
基金
国家 973计划资助项目!(G2 0 0 0 0 6 72 0 3- 1)
国家 86 3计划资助项目!(715 - 0 90 - 0 90 )
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
carbon control
dimension precision
mechanical properties
