PRODUCTION OF MIXED POWDER OF CARBIDE AND CARBONITRIDE FOR CERMET, AND CERMET THEREFROM

摘要

PURPOSE: A synthesizing method of a carbide and carbonitride powder is provided to quickly obtain uniform powder for cermet by uniformly mixing carbide and carbonitride in advance. CONSTITUTION: A synthesizing method of a carbide and carbonitride powder comprises a step of preparing Ti alloy powder and graphite(ST110); a step of planetary pulverizing the Ti alloy powder and graphite(ST120); a step of mortar pulverizing the Ti alloy powder and graphite(ST130); and a step of heat-treating the Ti alloy powder and graphite(ST140). In the ST140 step, the graphite is partially made into an amorphous state and carbide and carbonitride are formed. The Ti alloy powder is Ti-Cr alloy powder or Ti-Al alloy powder. The Ti composition of the Ti alloy powder is 65-80 wt%. The mixing ratio of the Ti alloy powder and the graphite is 1:1. [Reference numerals] (ST110) Preparing raw materials; (ST120) Planetary pulverizing; (ST130) Mortar pulverizing; (ST140) Heat-treating; (ST150) Analyzing;