Note: Heating Steel Assemblies for Sealing
Objective:
To heat steel assemblies for a sealing application; the client manufactures plastic filtration devices and was looking to replace their resistive heating method.
End Product:
Steel assemblies
Equipment:
Ambrell EASYHEAT 2.4 kW, 150-400 kHz induction heating power supply with a workhead and coil specifically designed for this application.
Materials:
Steel assemblies
Temperature:
1000 °F (538 °C)
Frequency:
180 kHz
Testing:
A single position multiple-turn pancake shaped coil was built to generate the required heating for the application. Initial tests were conducted to optimize the power delivered to the part. Temperature indicating paints were used to determine the heating time. It took seven minutes to heat the sample to temperature, easily exceeding the objective as the client's goal was to achieve temperature in under fifteen minutes.
Benefits:
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Speed: Induction heating easily surpassed the client's heating time goals.
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Repeatability: The client can expect the same result in the same amount of time every single time.
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Size of System/Workhead: Induction is more space efficient than an oven.
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Efficiency: Thanks to there being no ramp up time and instantaneous heating, induction is a more efficient method of heating.
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