Metal injection Molding

MIM is a new metal parts near-net forming processing technology formed by introducing modern plastic injection moulding technology into the field of powder metallurgy, which is a very rapid development in the field of powder metallurgy and industry in recent years. The process steps of MIM are: first select the metal powder and organic binder that meet the requirements of MIM and mix it into a uniform feeding material by appropriate method under certain temperature conditions, and then inject the forming blank into the mold cavity with an injection molding machine in the state of heating and plasticization after granulation, and then degrease it by chemical or solvent extraction, and finally obtain the final product by sintering and densification.

The high degree of freedom in part geometry enables the production of complex shaped metal parts in a single process, just like plastic products; MIM products have uniform density and good finish, with surface roughness of Ra 0.80 to 1.6μm and a weight range of 0.1 to 200g; high dimensional accuracy (±0.1% to ±0.3%) and generally no subsequent processing; wide range of applicable materials, high raw material utilisation and simple processes. wide field of application, high raw material utilisation, high degree of production automation, simple processes, continuous mass production possible.