Progress of polyoxymethylene-based binder for metal powder plastic shaping
Powder metal plastic shaping,which combines the plastic flow characteristics of organic binders,enables the rapid formation of complex components and has emerged as a crucial near-net shaping method for stainless steel,alloy steel,as well as non-ferrous metals such as titanium,nickel,and tungsten,and their composites.The novel polyoxymethylene(POM)-based binders have gained prominence as the mainstream binder system in metal powder injection molding due to their high strength,excellent debinding shape retention,efficiency,and low carbon residue.As a result,they have become highly promising binders for powder metal plastic forming.The recent technological advancements in powder metal plastic forming were summarized.The physical properties and component design for powder injection molding using POM-based binders were overviewed.The rheological behavior and influencing factors of POM-based binders were investigated.The catalytic debinding process and key factors were analyzed,and a comprehensive summary of the typical applications of POM-based binders in non-ferrous metal components were presented.Furthermore,the challenges and future research directions for POM-based binders were discussed,aiming to provide valuable insights for promoting their application in powder metal plastic forming.
万方数据
维普
