MANUFACTURING METHOD OF POWDER SINTER MOLDED BODY, BINDER COMPOSITION FOR POWDER SINTER MOLDED BODY AND MOLDING MATERIAL FOR SINTERING

摘要

PROBLEM TO BE SOLVED: To form a powder sinter molded body capable of conducting a de-binder process and a sintering process in a short time, less in generation of crack, breakage or the like and further high in accuracy.SOLUTION: There is provided a manufacturing method of a powder sinter molded body 14 by defatting a sintering material molded body 10 molded to a predetermined shape from a molding material 13 containing a sinter powder 11 which can be sintered and an organic binder 12 by applying superheated steam 6 and sintering the same at a predetermined temperature, which is constituted by including a molding process for molding the molding material containing a predetermined binder component to form the sintering material molded body, a de-binder process for eliminating the organic binder by applying the superheated steam at a predetermined temperature or lower to the sintering material molded body and a sintering process for heating the sintering material molded body to a temperature where the sinter molded body is sintered or higher to sinter the sinter molded body.SELECTED DRAWING: Figure 1