粉末注射成形钛合金粘结剂体系的研究进展

Research progress of titanium alloy binder system for powder injection molding

钛及钛合金具有低比重、高比强度、优异的生物相容性以及良好的耐腐蚀性等特点,在航空航天、生物医疗、化工、船舶、汽车等领域极具应用潜力。钛合金粉末注射成形技术(powder injection molding,PIM)提高了材料的利用率,实现了中小型复杂形状钛产品的大批量、低成本制备,显著地推动了钛及钛合金产品的生产及应用。目前关于粉末注射成形钛合金粘结剂体系的相关文献报道十分有限,新型粉末注射成形钛合金粘结剂体系的开发处于停滞不前的状态。本文分析总结了不同粉末注射成形钛合金粘结剂体系的研究现状,并针对目前存在的问题提出改进措施。

Titanium and titanium alloys have the low specific gravity,high specific strength,excellent biocompatibility,and good corrosion resistance,showing the great application potential in the aerospace,biomedicine,chemical engineering,shipbuilding,automobile,and other fields.The powder injection molding(PIM)technology used for titanium alloys increases the utilization rate of materials,realizes the large-scale and low-cost preparation of small and medium-sized titanium products with complex shape,and significantly promotes the development of titanium and its alloys.At present,there are few reports about the titanium alloy binder system for powder injection molding,and the development of new type titanium alloy binder system for powder injection molding is in a stagnating state.The research status of the different titanium alloy binder systems for powder injection molding was introduced in this paper,and some improvements for the existing problems were suggested as the reference for researchers.