Increasing the wear resistance of linings of ore furnaces for melting normal electrocorundum

The use of air-cooled linings on ore furnaces for melting normal electrocorundum has made it possible to increase their wear resistance by an order of magnitude. This is explained by the formation of a steady solid-phase skull due to a higher temperature gradient with a total decrease in the thermodynamic levels of the ambient and the refractory lining.Translated from Ogneupory, No. 10, pp. 29 – 30, October, 1995.