Note: Oxidation of Graphite Anodes
Objective:
Heating carbon graphite anodes to destructively oxidize the parts to process embedded contaminants
End Product:
Carbon graphite anodes
Equipment:
Ambrell 20 kW induction heating system, custom multi-turn helical coil, 4 cap 1.0 μF workhead
Materials:
anodes 2.5 x 2.5 x 4 in (63 x 63 x 102 mm)
Temperature:
1900 °F (1000 °C)
Frequency:
154 kHz
Testing:
An air purge system is used to provide fresh air (â 25 f3/hr) to the part during the heat cycle and to provide a swirling action for maximum contact with the surface of the anode. The anode is placed inside the induction-heating coil and heated to a temperature of 1000 °C. After 2.5 hours, the anode burns to about 0.375 in diameter piece. A pyrometer/controller is used to provide constant temperature as the anode reduces in size.
Benefits:
Visit our Applications Lab to learn more about free applications testing.
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