METHOD AND APPARATUS FOR REMOVING CERAMIC MATERIAL FROM CAST COMPONENTS

摘要

The removal of ceramic material from the interior of cast metallic components is accomplished in a closed system. A vessel (35) within the system is filled with a chemical leaching fluid (36) that immerses the cast component (30) having the ceramic material (32) and/or ceramic cores (33) therein. The leaching fluid is superheated and boiling is controlled by varying the pressure within the closed system without changing the molecules in the vessel.