METHOD FOR MANUFACTURING REFRACTORY COMPOSITE USING LIQUID SILICON INFILTRATION

摘要

PURPOSE: A manufacturing method of a heat-resistant composite is provided to cut down the manufacturing time, improve product quality, and maintain resistance and durability at higher than 2000deg.C. CONSTITUTION: A manufacturing method of a heat-resistant composite comprises the steps of: manufacturing a molded body; infiltrating a mixture of liquefied phenol and metal silicon powder into the molded body; solidifying the infiltrated mixed solution; producing silicon carbide by paralyzing the mixed solution; Infiltrating a pitch to the molded product in which silicon carbide has produced from; heat-treating the molded product in which the pitch has infiltrated; infiltrating a silane group polymer into the heat-treated molded product if the density of the heat-treated molded product is less than the standard density; and producing silicon carbide by infiltrating the metal silicon to the molded product in which the silane group polymer is infiltrated or not infiltrated.