| Title |
Binder Selection for Injection Moulding of Sieve Size Fe - Powder |
| Authors |
유승철(Seung Chul Yoo) ; 권병수(Byung Su Kwon) ; 이완재(Wan Jae Lee) ; 문인형(In Hyung Moon) |
| Abstract |
An optimal binder system was selected for the successful application of the metal powder injection moulding(MIM) with thermoplastic binders using sieve size Fe-powder. The thermal analysis for the binders(high density polyethylene, low density polyethylene, carnauba wax, paraffin wax) and the binder mixtures were taken using DSC and TGA. An optimal binder content for MIM using sieve size powder(-270mesh) was experimentally determined from the mixing and moulding behaviour. A relatively good mixing and moulding behaviour could be obtained by using a 45% paraffin wax-15% carnauba wax-30%low density polyethylene-10%stearic acid mixture. The optimal amount of powder loading was 59-60vol%, the critical value being 61vol%. The binder could be nearly removed by wicking and thermal decomposition. |