Process and apparatus for manufacturing kiln furniture made of ceramic foam, and kiln furniture thus obtained

摘要

A method of making a finely Enfour support, especially foam ceramic cooking plate, comprising at least one cycle impregnation with a slurry of a polymer material with open porosity preform having the profile of the sen siblement support, followed by drying and then sintering at high temperature with elimi nation of the polymer characterized in that the impregnated préfor me undergoes a dewatering the slurry by differential pressing so as to vary the porosity continuously along the profile and to obtain the necessary mechanical strength in sensitive areas such as hoops. Associated device for carrying out the method comprising two rollers (22, 24) pressing the polymeric foam (20) impregnated.