Heating an Inconel Susceptor for a Jet Engine Fan Blade
Research Objective
To heat an inconel® 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
Inconel susceptor, 1 3/8” wide, 2” long, 3/4” thick.
Temperature Required
1950°F
Induction Heating Equipment
Protective atmosphere heating system, 3kW induction heating power supply, specially designed induction coil.
Operating Frequency
215 kHz
Heating Procedure
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 inconel susceptor to 1950°. An even heating pattern was observed throughout the inconel block.
Conclusion
Successful, even heating was achieved by heating the inconel susceptor with the 5 kW power supply in a protective atmosphere.
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