High Frequency Heating Steel Pipe With Induction Heating Equipment
Objective To heat a steel pipe to 1100ĀŗF (593ĀŗC) to transport meltedĀ magnesium
Material Steel pipe 14.5ā (4.42m) long with a 3.5ā (88.9mm)OD
Temperature 1100ĀŗF (593ĀŗC)
Frequency 9 kHz
Equipment ā¢ DW-MF-160kW induction heating system, equipped with aĀ remote workhead containing one 25Ī¼F capacitor.
ā¢ An induction heating coil designed and developedĀ specifically for this application.
Process A specially designed double U channel coil the length of theĀ pipe is used in this application. The pipe is placed inside theĀ coil and power is supplied. The voltage is set and the powerĀ output is 100kW. As the part reaches the Currie point theĀ power drops to 80kW and the voltage must be increased toĀ achieve the 140kW. The pipe reaches 1100ĀŗF (593ĀŗC) in 20Ā minutes.
Results/Benefits Induction heating provides:
ā¢ Controllable and repeatable heat pattern that keeps
material in liquid form
ā¢ Environmentally friendly
ā¢ Even distribution of heating
ā¢ Movable workhead that can be located away from theĀ power supply
