Abstract
Measured axial temperature distributions are given for 3·2 mm ϕ spectrographically pure graphite arc electrodes for currents of 10-40 A. It is shown for the anode that the major portion of these profiles can be described by considering radiation losses only. This enables a mean thermal conductivity to be estimated and this is employed in an energy balance equation which yields corresponding anode fall voltages of 24·7-11·6 V for air.
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