METHOD AND OVEN FOR MANUFACTURING LIGHT CONSTRUCTION ELEMENTS, PARTICULARLY COATING PLATES

摘要

The light construction element is comprised of a first layer (4a) of expanded clay bound to a second layer (6) of non expanded clay. The firing and the expansion are carried out in a firing station (14) of an oven (10). The blank comprises a first layer (4) which has the shape of the body and is comprised of an expandable clay applied on a lower clay layer (6), said lower layer being non-expandable at the expansion temperature of the first layer. Radiation heating elements (40) are used to act on the blank from the top. The radiation heating elements are assembled in a plurality of groups (42, 44, 46, 48). The groups present a space with respect to the feed device (18), said space increasing in the feed direction of the feed device (18) to adjust their space with respect to the displacement of the first expanding layer (4).