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含钨量较高的ＷＮｉＦｅ高比重合金具有高的密度、强度等优异性能，适合用作动能穿甲弹以及防辐射屏蔽材料；而粉末注射成形技术（ＰＩＭ）在生产小而形状复杂与性能良好的零件方面具有很大的潜在优势。研究了９５Ｗ３．５Ｎｉ１．５Ｆｅ高比重合金的注射成形工艺，讨论了其烧结工艺与性能的关系，并与采用传统粉末冶金（ＰＩＭ）法制造的合金性能与显微组织进行了比较。结果表明，采用注射成形所生产的合金，性能更高，硬度分布和显微组织结构更均匀。
W Ni Fe high proportion of tungsten alloy with high density and high strength properties, suitable for use as a kinetic energy armor piercing and radiation shielding materials; and powder injection molding (PIM) in the production of small and complex shape and There are great potential advantages to good parts. The injection molding process of 95W3.5Ni1.5Fe alloy with high specific gravity was studied. The relationship between the sintering process and properties was discussed. The properties of the alloy were compared with those of the conventional powder metallurgy (PIM) . The results show that the alloy produced by injection molding has higher performance, more uniform hardness distribution and microstructure.