Process of forming cylinder wall of burning cylinder for use in heating apparatus

摘要

A process of forming a cylinder wall of a burning cylinder for use in a heating apparatus which comprises forming an enamel pattern on the surface of a base made of a transparent or translucent and highly heat resistant material; forming thereon a metal or metallic compound layer that is 0.1 to 0.5 mu in thickness and high in transparency; and thereafter heating the same as a whole to enamel the pattern and the layer.