수계 바인더를 이용한 W-Cu 합금의 새로운 사출성형법 연구

Abstract

The present work illustrates the use of water-soluble cupric salts as ingredients of binder for injection molding of W-10 wt%Cu. Parts produced are dense, homogeneous and have good surface finish, compared to those produced using conventional binder system. This new binder system provides also process-simplification benefit. CuCl2 and Cu(NO3)2 with the purity of 98% was selected for this study. Rapid sintering process involving thermal decomposing was successful in densification for 1h. Final density that is about 93% of theoretical value could be obtained, and are distinguishable from conventionally processed W-Cu composites.