Patents

The invention discloses a method of forming a ceramic lining of uniform thickness on the inward surface of a hollow axisymmetric cone, such as on the inside surface of a hollow truncated right circular cone. The method of the invention provides a ceramic lining on the inside surface of a hollow truncated right circular cone by simultaneous biaxial rotation of the hollow truncated right circular cone and carrying out a thermit reaction inside such a cone while it is rotating. This is accomplished by carrying out a highly exothermic reaction, capable of self-propagation after ignition and releasing sufficient heat to result in molten product or products, such as an exothermic thermit reaction, inside a hollow axisymmetric cone, such as on the inside surface of a hollow truncated right circular cone subjected to biaxial rotation.