Heat resistant alloy foil lining for kilns and method of lining kiln

Abstract From the Canadian patent

There is disclosed herein a kiln for the heating and firing of ware, usually ceramic which, includes a preheat zone, a heat treatment or soaking zone operating above about 1400°F. and a post-heat zone. In the heat treatment zone the walls are fabricated of refractory wallboard or tile elements and includes an austenitic foil material applied to the hot face of the refractory in an interlocking or shiplap structure so as to wrap and surround the refractory board and prevent refractory spalling from entering the soaking zone and thereby contaminating the ware. It is important that in the entire process system including the preheat, soaking and post-heat zones spalling and, dust be minimized.