To heat an inconnel susceptor used to heat jet engine fan blades to 1950°F in less than 1 minute. Improved temperature uniformity across the blades will be achieved by using this indirect heating method in an atmosphere of argon.
Parts & Materials Description
Inconnel susceptor, 1 3/8” wide, 2” long, 3/4” thick.
Induction Heating Equipment
Protective atmosphere heating system, 3kW induction heating power supply, specially designed induction coil.
A specially-designed seven-turn helical induction coil was used to provide optimal heating efficiency. Initial tests were conducted to establish a heating profile and determine time to temperature. RF power was applied for 45 seconds to bring the inconnel susceptor to 1950°. An even heating pattern was observed throughout the inconnel block.
Successful, even heating was achieved by heating the inconnel susceptor with the 5 kW power supply in a protective atmosphere.