METHOD FOR MANUFACTURING VANADIUM CARBIDE POWDER ADDED TOOL STEEL BY MILLING PROCESS

摘要

Vanadium carbide powder mixed with 5-15wt% tool steel power is given by ball milling for 120 hours in hexan, wet atmosphere, annealed for 1 hour at the temperature 900 degree C in the vacuum state less than 100 tor, having a 0.5-1wt% lubricant added therein, cool molded, and in partial reducing atmosphere, heated at the temperature 500-600 degree C so as to remove the lubricant. Also, it is sintered at the proper temperature of 1220-1300 degree C in the vacuum state less than 100 tor.