Method for separating and removing a molded element formed by firing and pyroplastic adhesion of the material from a mold

A method of separating and removing a molded element, formed by firing and pyroplastic adhesion of the material to be fired, more particularly a clay which is capable of expanding, from the mold surrounding it, the said mold having a base formed by grid bars or otherwise penetrated to allow the material to be fired to be acted upon by hot gases flowing through the material, the said base having a support surface facing the material which is like a bar grid, and having a structure forming the side walls which is preferably separated from the said base, characterized in that the molded body is pressed upwards with plastic deformation and raised from the bars, in the region between its surfaces bearing on the bars or the profiling of the bars of the base, starting from one end of the bars and progressing longitudinally of the bars, thus forming a wedge-shaped and broadening clearance progressing along the surface bearing on the bars.