OVEN DEVICE OPERATED BY DIRECT ELECTRIC HEATING IN ACCORDANCE WITH THE RESISTANCE PRINCIPLE, IN PARTICULAR FOR THE PREPARATION OF SILICON CARBIDE.

摘要

An electric resistance furnace for the production of silicon carbide from silicon dioxide and carbon has a U-shaped carbonaceous resistance core embedded in the burden of coke, quartz and other additives. The electrodes are disposed adjacent to each other and are connected to the resistance core at the ends of the legs of the U. The ratio of the length of the resistance core to the electrode spacing is at least 1.6.