Induction Melting aluminum for casting

Objective Heating a graphite crucible to 1292ºF (700ºC) to melt aluminum to liquid form for a casting application
Material 9.8” (250mm) OD, 22.4” (570mm) long, 0.7” (17.5mm) thick Graphite crucible, approx. 92.5lb (42kg) of aluminum
Temperature 1292 ºF (700ºC)
Frequency 8.3 kHz
Equipment
• Power of 90kW induction heating system, equipped with a
remote workhead containing two 26.9μF capacitors for a total of 53.8 μF.
• An induction heating coil designed and developed specifically for this application.
Process A ten turn helical coil is used to heat the graphite crucible to 1292ºF (700ºC) for 25 minutes to melt the aluminum to liquid form. Once the aluminum is melted it is then cast. No stirring is involved, molten sinks to bottom of crucible and aids in the melting process.
Benefits/Results Induction heating provides:
• Hands-free heating that involves no operator skill for manufacturing.
• Repeatable, dependable results.
• More efficient and cost effective then gas furnace, does not heat up the manufacturing area.
• Quicker process time which increases production.

Melting aluminum in graphite crucible

Induction coil of Melting aluminum for casting

Induction Melting aluminum for casting