HEAT-RESISTANT HOLDER AND HEAT-TREATING/SINTERING METHOD

PROBLEM TO BE SOLVED : To provide a heat-resistant holder which has adequate non-reactivity with a product, is superior in heat resistance, mechanical strength, and thermal shock resistance, and is effectively used for heat-treating or sintering a hard metal material or cermet containing tungsten carbide as a main component. SOLUTION : The heat-resistant holder is used for heat-treating or sintering the hard metal material or cermet containing tungsten carbide as the main component and is composed of an oxide-sintered compact member containing rare earth elements.