PROCESS FOR PRODUCING A SILICIZED SILICON CARBIDE DIPPING FORMER

摘要

A process for making a ceramic dipping former from silicized silicon carbide by making an absorbent negative mold of the ceramic dipping former containing preparing a suspension containing at least two particle size fractions of silicon carbide, a binder and water and pouring the suspension into the absorbent negative mold, drying the suspension in the absorbent negative mold, opening the absorbent negative mold and removing a silicon carbide green body, and further drying and silicizing the green body in a drying oven at a temperature between approximately 1400 DEG C. to 1750 DEG C. under reduced pressure.