Modifying polyacetal binder based feedstock to improve quality of MIM parts

The polyacetal binder system used in preparation of feedstock for powder injection molding is known for its fast debinding rate. However, flow lines and binder-rich zones formed at cavity entrance of an injection molded part are common problems of the feedstock based on this system. In addition, the acid debinding process required for this system involves handling of liquid acid, which needs a special furnace. Modifications of a polyacetal …