Verfahren zur Herstellung eines Feingussmodells

摘要

A stereolithography machine is employed to solidify a pattern (11) including a series of stacked grids (8,10) forming the pattern having an outer skin and inner labyrinth and any number of gates. The hollow pattern (11) is mounted on a central sprue (62) through runners (60) at the gate (16) of the pattern. The pattern (11) is dipped in ceramic slurry (64) and sifted in a refractor grain in order to coat the hollow pattern. The hollow pattern is melted to form a mold.