Metal Injection Molding is developed by traditional Powder Metallurgy and modern plastic injection molding process,its base process as below: Mixing metal powder (usually less than 20μm) and presupposed binder to become feedstock with rheological characteristics;injecting the feedstock to mold cavity and shaping the green part;degreasing;sintering,the metal component with proportional microstructure organization can be shaped.
The development of MIM technology is benefit from the electronics industry (such as mobile phone industry),since 2009,the entire industry rise steeply,especially after 2011.As the commodity competition between Apple and Samsung group,MIM components are widely used on mobile phone appliance,so the hot boom is unprecedented.
After 2000,stainless steel material are used widely,such as optical fiber splices,mobile phone keyboards,SIM card bracket.As the MIM components are widely applied on mobile phone industry,so a investment boom on MIM industry has appeared in recent years,what’more,many factories of 3C industry also be built in China and as the investment threshold is lower,so a lot of money is inflowing.
