Note: Heating stainless steel finned parts
Objective:
To heat the center 2 in (51 mm) of stainless steel finned parts to temperature so that they can be twisted
End Product:
Finned parts
Equipment:
Ambrell EASYHEAT 10 kW, 150-400 kHz induction heating power supply with a remote workhead containing two 0.3 μF capacitors
A single position three-turn helical coil induction heating coil developed for this application
Materials:
Stainless steel finned parts 30 in (762 mm) long, 3/16 in (4.8 mm) diameter for the portion that requires heating)
Temperature:
1800 °F (982 °C)
Frequency:
338 kHz
Testing:
Testing was performed to determine the appropriate power level for this application given the time and heating requirements. A 10 kW power supply heats the parts to temperature in the targeted time. They were processing batches of ten parts with a torch previously. The cycle time was 1.5 hours. With induction, they can cut that time
in more than half.
Benefits:
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Time savings: Induction reduced their cycle time considerably
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Energy savings: Induction is a targeted, precise heating method with instant on/off, which can save users energy
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Safety: Induction is a safer, flameless heating method, so it provides employees with a cooler, lower-risk working environment
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