Abstract
The mechanism of the debinding on powder injection molding was discussed on the basis of the thermogravimetric and infrared spectroscopic analysis (TG-FTIR) data. The maximum rate of the binder weight loss increased in proportion to the heating rate in the thermal debinding process (TDP). And the paraffin wax and polybutyl-methacrylate were vaporized as thermal decomposition gas during the heating process(at 250°C for 20 min) in the TDP. On the other hand, the starting temperature of the binder weight loss in the TDP was decreased with an increase of the polyethyleneglycol removal in the solvent debinding process.
