MIM powder injection, Powder metallurgy bearings, iron-based powder metallurgy

The basic process is choosing suitable metal powder and binder for MIM, and then at a certain temperature using appropriate method to mix powder and binder to homogeneous feedstock, inject molding in injection molding machine after granulation, sintering obtained molding blanks after debinding.

MIM process includes eight important steps: product design, mold design, quality control, mixing, injection, degreasing, sintering, secondary processing. Binder → mixing → injection molding → degreasing → sintered powder

Main process of MIM technology. MIM combines the advantages of powder metallurgy and plastic injection molding, breaks the limits on product shape for traditional metal powder press molding process. Using characteristics of metal powder metallurgy technology, MIM can be sintered compact mechanical parts with good mechanical properties and surface quality. At the same time, the use of plastic injection molding technology can producing complex shape parts in high-volume and high-efficient. Its application is advanced  than conventional powder metallurgy, precision casting and other processes.