DEWAXABLE MOLDED BODY OF MAGNETIC POWDER AND METHOD FOR DEWAXING SAME

摘要

PURPOSE:To obtain a dewaxed molded body having superior dimensional accu racy by using magnetic powder and a binder composed of org. high molecular compds. soluble and insoluble in various solvents. CONSTITUTION:A mixture of magnetic powder with solvents such as toluene and CO2 and a binder composed of org. high molecular compds. soluble and insoluble in the solvents is injection- or extrusion-molded. The binder in the resulting molded body is dissolved and extracted with an org. solvent or a solvent having a supercritical phase and the molded body is dewaxed and sintered to obtain a powder metallurgical product.