Note: Induction Melting Glass for Fiber Drawing
Objective:
To heat a metal susceptor vessel to 2200°F within 25 minutes for a fiberglass melting application
End Product:
fiber
Equipment:
Ambrell 20 kW RF power supply, remote heat station and a specially-designed induction coil.
Materials:
Metal susceptor vessel
Temperature:
2200°F
Frequency:
300 kHz
Testing:
A specially-designed induction coil, shaped to conform to the metal vessel, was used to deliver uniform heat to the vessel. Initial tests were conducted to establish a heating pattern and time-to-temperature. RF power was applied for 22 minutes and the vessel reached a temperature of 2,200°F. An additional 3kW power supply was suggested for use when the glass in the vessel is emptied through the drain tube.
Benefits:
Uniform and repeatable results were achieved with the Ambrell power supply and coil. The vessel can be maintained at 2200°F so that glass can be melted for fiber drawing.
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