HIGH PURITY TUBE TYPE CERAMIC-MOLDING APPARATUS HIGH PURITY TUBE TYPE CERAMIC-MOLDING METHOD USING SAME

摘要

PURPOSE: A high purity tube type ceramics molding apparatus and a high purity tube type ceramics molding method using the same are provided to improve purity due to a non-contact of a metal material and a ceramics pulverized body inside a mold, and to prevent a shape of a tube molding product from distorting and material a powder from losing by uniformly adding a pressure to the mold. CONSTITUTION: The high purity tube type ceramics molding apparatus includes a core unit(110); an outer mold(120); an intra mold(140); an upper base lid(150); a lower cover(160); a pressure presser portion; and a pressure transmission hole. The intra mold wraps the exterior of the cylindrical core unit of a metal material. The outer mold is separated from the intra mold and wraps it. Both the intra mold and the outer mold are in a rubber material. An organic oil of separable Si oil is spread between the core unit and the intra mold. The upper base lid and the lower cover are respectively formed in the top and lower part of a space, in which the intra mold and the outer mold are separated. The upper base lid and the lower cover seal the separate space of the outer mold and the intra mold, are able to move inside, and add pressure at the top and the bottom. A length of the upper base lid and the lower cover is a 5%~50% of the one of the intra mold or the outer mold. The forming mold includes more a release agent formed between the core unit and the intra mold. The high purity tube type ceramics molding apparatus includes more a sealing part(50) vacuum packing the outside of the forming mold.