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    • 31. 发明授权
    • 금속사출성형법을 이용한 합금 부품의 제조방법 및합금부품
    • 通过金属注射成型和合金部件制备合金部件的方法
    • KR100768700B1
    • 2007-10-19
    • KR1020060058373
    • 2006-06-28
    • 학교법인 포항공과대학교포항공과대학교 산학협력단
    • 이성학윤태식김창규손창영하대진김낙준
    • B22F3/00
    • B22F3/225B22F3/1021B22F2998/10B22F2999/00C22C33/0285B22F1/0059B22F2201/01B22F2201/10
    • A manufacturing method by metal injection molding and alloy parts manufactured by the same is provided to cut down manufacturing cost of high value-added precision parts having low sintering temperature and superior hardness and commercial production property. An alloy part manufacturing method comprising the following steps of: mixing a binder with an alloy powder having a composition comprising 40 to 75 wt.% of at least one component selected from the group consisting of Fe and a combination of Fe and Co, 20 wt.% or more of at least one component selected from the group consisting of W, Mo, Cr, Nb, V and Ni, 2 to 14 wt.% of at least one component selected from the group consisting of B, C, Cu, and Si, and the other inevitable impurities; injection molding the mixture to mold the mixture in the form of a part; separating the binder from the injection molded article; and sintering the binder-removed injection molded article, the alloy part is characterized in that the alloy powder has a composition comprising 20 to 35 wt.% of Cr, 1 to 2.5 wt.% of Si, 0.5 wt.% or less of C, 0.1 to 3 wt.% of Cu, 2 to 5 wt.% of B, 0.1 to 8 wt.% of Mo, 14 to 22 wt.% of Ni, and 4 to 15 wt.% of Co.
    • 提供了通过金属注射成型的制造方法及其制造的合金部件,以降低烧结温度低,硬度高,商业化生产性能优异的高附加值精密部件的制造成本。 一种合金部件制造方法,包括以下步骤:将粘合剂与合金粉末混合,所述合金粉末的组成包含40至75重量%的至少一种选自Fe和Fe和Co的组合的组分,20重量% ,选自W,Mo,Cr,Nb,V和Ni中的至少一种成分的%以上,2〜14重量%的选自B,C,Cu, 和Si,以及其他不可避免的杂质; 将混合物注射成型,以一部分的形式模制混合物; 将粘合剂与注塑制品分离; 烧结粘合剂去除的注射成型品时,合金部分的特征在于,合金粉末具有20〜35重量%的Cr,1〜2.5重量%的Si,0.5重量%以下的C ,0.1〜3重量%的Cu,2〜5重量%的B,0.1〜8重量%的Mo,14〜22重量%的Ni和4〜15重量%的Co