Electric Furnaces and Their Industrial Applications

action actual aluminium ampères applied base block calcium carbide carbon electrodes carried cent chamber charge chemical chloride coke combination Company conducting connexion considerable consists construction containing continuous cooling core cost crucible direct effect efficiency electric furnace electrolytic employed energy experiments extremity feed formation fused fusion gases graphite hearth heat high temperature hopper impurities increased iron Italy latter layer lead lime lining lower maintained manufacture mass means metal method mixed mixture molten necessary obtained opening operation ordinary oxide passing patent placed portion possible practice present principle proportion pure quantity raw material reaction reduced refractory removed represented resistance resistance furnace result rods secured separated serve side silicon smelting sodium square steel subjected suitable surface takes temperature terminal tion tube upper utilized various vertical volts walls whilst wire zinc