COOLING UNIT FOR THERMAL GRADIENT FATIGUE TESTER USING ELECTRIC FURNACE

摘要

PURPOSE: A cooler of a thermal gradient fatigue testing machine using a furnace, which directly cools using a convection mode, is provided to detect the temperature of a test piece on a real time basis by forming a thermocouple insertion hole on a test piece. CONSTITUTION: A cooler of a thermal gradient fatigue testing machine using a furnace comprises a test piece(16), a specimen holder(20), a movable refractory pipe(50) and a cooling pipe(40). The specimen holder is formed in order to fix the outer circumference of the test piece. The specimen holder is fixedly inserted in the upper side of the movable refractory pipe. The fitting hole and an exhaust hole are formed on the other end of the movable refractory pipe. The cooling pipe is fixedly inserted to the fitting hole. The end part of the cooling pipe is located on the lower-part of the test piece at a regular interval.