MANUFACTURING METHOD OF CYLINDRICAL CERAMIC SINTERED BODY AND ITS CYLINDRICAL CERAMIC SINTERED BODY: Fid-Bau Portal

MANUFACTURING METHOD OF CYLINDRICAL CERAMIC SINTERED BODY AND ITS CYLINDRICAL CERAMIC SINTERED BODY

SATO KEIICHI / ANDO ISAO

PROBLEM TO BE SOLVED: To provide a manufacturing method of a cylindrical ceramic sintered body with less deformation during manufacturing and having a stable shape even if repeatedly sintered, and the cylindrical ceramic sintered body.SOLUTION: A manufacturing method of a cylindrical ceramic sintered body which is sintered using a firing furnace has: a molding step S1 of filling a raw material powder into a cavity of a molding die, followed by compression molding so as to obtain the cylindrical ceramic molded body; an arranging step S2 of arranging the cylindrical ceramic molded body in the firing furnace; and a firing step S3 of obtaining the cylindrical ceramic sintered body by firing the arranged cylindrical ceramic molded body in the firing furnace. The arranging step S2 puts a plurality of supporting members side by side on the hearth in the firing furnace or on the bottom board placed on the hearth. The supporting members are stacked in three tiers or more per one place, and the cylindrical ceramic sintered body is mounted upright on the supporting members.SELECTED DRAWING: Figure 1

【課題】焼結時における変形が少なく、繰り返し焼成を行っても安定した形状を有する円筒形セラミックス焼結体の製造方法及び円筒形セラミックス焼結体を提供することを目的とする。【解決手段】焼成炉を用いて円筒形セラミックス成形体を焼成する円筒形セラミックス焼結体の製造方法であって、円筒形成形型のキャビティ内に原料粉末を充填し、加圧成形して円筒形セラミックス成形体を得る成形工程Ｓ１と、円筒形セラミックス成形体を焼成炉内に配置する配置工程Ｓ２と、配置した円筒形セラミックス成形体を焼成炉において焼成して円筒形セラミックス焼結体を得る焼成工程Ｓ３とを有し、配置工程Ｓ２では、焼成炉内の炉床あるいは炉床の上に設置した敷板に、複数の支持部材を並べ、該支持部材は１箇所につき３段以上重ねあわせて載置し、該支持部材上に円筒形セラミックス成形体を直立させた状態で載置する。【選択図】図１

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