Ceramic casting shells for sheathing of models which can be melted out, for fine castings, and process for their production

摘要

Process for the production of ceramic casting shells with which a fine casting wax model (10) is surrounded for the formation of a casting cavity. The wax model (10) is surrounded with different dip-coating mass layers (11,13,15) which themselves are respectively sanded with a sanding layer (12,14,16). Sawdust, fine wood chips, chopped straw, plastics granules, grains or the like are used as the sanding material (17,18,19). IMAGE