Patent ID: 6254657
Filing Date: 2001-07-03
Classification: B22F,C04B

Abstract:
A molded product molded by the method comprising the steps of:mixing a liquid additive with a powdery raw material selected from the group consisting of metals, ceramics and composites of metals and ceramics to prepare a first mixture, and performing molding into a predetermined shape, said liquid additive being a liquid which causes an exothermic reaction with said powdery raw material, wherein an amount of liquid of said first mixture exceeds a predetermined amount;adding a regulatory agent to said first mixture which reacts with at least one of said liquid additive and said powdery raw material to form a film layer on particles of said powdery raw material when said amount of liquid equals said predetermined amount, for suppressing said exothermic reaction;gradually discharging said liquid until reaching said predetermined amount for causing said film layer to be formed; andthereafter, decreasing said amount of liquid further, beyond said predetermined amount, to cause said film layer to disappear and said exothermic reaction to occur, wherein said regulatory agent controls initiation of said exothermic reaction such that self-combusting reaction occurs m which generated heat accelerates the exothermic reaction;wherein the molded product has a deflective strength in a range of about 18 to 30 MPa.