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A platform for research: civil engineering, architecture and urbanism
CYLINDRICAL MOLDING DIE AND METHOD FOR MANUFACTURING CYLINDRICAL CERAMIC MOLDING USING THE SAME
PROBLEM TO BE SOLVED: To provide a cylindrical molding die with which a high-quality cylindrical ceramic molding having no defects such as cracks or significant deformation can be manufactured in an industrial scale, and a method for manufacturing a cylindrical ceramic molding by a cold isostatic press (CIP) process using the above molding die.SOLUTION: A cylindrical molding die 1 includes: a columnar core rod 2 made of a hard material; a cylindrical mold form 3 made of an elastic material 10 and coaxially disposed outside the core rod; a pair of cap bodies 4a, 4b made of an elastic material and supporting both ends of the core rod and the mold form at both ends in an axial direction; and at least one elastic support member 7 mounted on an outer circumferential surface of the mold form and supporting the mold form from the outside. The mold form and the cap bodies have hardness (JIS K6253) of 30° to 60° and a difference in the hardness between the mold form and the cap bodies is 10° or less. A cylindrical ceramic molding is press-molded by a CIP process using the above cylindrical molding die 1, and after the CIP molding, the pressure is reduced from 20 MPa to normal pressure while taking 10 to 40 minutes.SELECTED DRAWING: Figure 1
【課題】亀裂や著しい変形などの欠陥のない、高品質の円筒形セラミックス成形体を工業的規模での製造可能な円筒形成形型及びこれを用いた、冷間静水圧プレス（ＣＩＰ）法による円筒形セラミックス成形体の製造方法の提供。【解決手段】硬質材料からなる円柱状の芯棒２と、弾性材料１０からなり、芯棒の外側に同軸に配置される円筒状の型枠３と、弾性材料からなり、芯棒と型枠の両端を軸方向両端から支持する一対の蓋体４ａ、４ｂと、型枠の外周面に取り付けられ、型枠を外側から支持する、少なくとも１本の弾性支持部材７とを備え、型枠及び蓋体は、硬度（ＪＩＳ Ｋ６２５３）が３０°〜６０°の範囲にあり、かつ、型枠と蓋体の硬度差が１０°以下である円筒形成形型１を用いて、ＣＩＰ法により円筒形セラミックス成形体を加圧成形し、ＣＩＰ成形後、２０ＭＰａから常圧までを１０分〜４０分かけて降圧する円筒形成形型。【選択図】図１
CYLINDRICAL MOLDING DIE AND METHOD FOR MANUFACTURING CYLINDRICAL CERAMIC MOLDING USING THE SAME
PROBLEM TO BE SOLVED: To provide a cylindrical molding die with which a high-quality cylindrical ceramic molding having no defects such as cracks or significant deformation can be manufactured in an industrial scale, and a method for manufacturing a cylindrical ceramic molding by a cold isostatic press (CIP) process using the above molding die.SOLUTION: A cylindrical molding die 1 includes: a columnar core rod 2 made of a hard material; a cylindrical mold form 3 made of an elastic material 10 and coaxially disposed outside the core rod; a pair of cap bodies 4a, 4b made of an elastic material and supporting both ends of the core rod and the mold form at both ends in an axial direction; and at least one elastic support member 7 mounted on an outer circumferential surface of the mold form and supporting the mold form from the outside. The mold form and the cap bodies have hardness (JIS K6253) of 30° to 60° and a difference in the hardness between the mold form and the cap bodies is 10° or less. A cylindrical ceramic molding is press-molded by a CIP process using the above cylindrical molding die 1, and after the CIP molding, the pressure is reduced from 20 MPa to normal pressure while taking 10 to 40 minutes.SELECTED DRAWING: Figure 1
【課題】亀裂や著しい変形などの欠陥のない、高品質の円筒形セラミックス成形体を工業的規模での製造可能な円筒形成形型及びこれを用いた、冷間静水圧プレス（ＣＩＰ）法による円筒形セラミックス成形体の製造方法の提供。【解決手段】硬質材料からなる円柱状の芯棒２と、弾性材料１０からなり、芯棒の外側に同軸に配置される円筒状の型枠３と、弾性材料からなり、芯棒と型枠の両端を軸方向両端から支持する一対の蓋体４ａ、４ｂと、型枠の外周面に取り付けられ、型枠を外側から支持する、少なくとも１本の弾性支持部材７とを備え、型枠及び蓋体は、硬度（ＪＩＳ Ｋ６２５３）が３０°〜６０°の範囲にあり、かつ、型枠と蓋体の硬度差が１０°以下である円筒形成形型１を用いて、ＣＩＰ法により円筒形セラミックス成形体を加圧成形し、ＣＩＰ成形後、２０ＭＰａから常圧までを１０分〜４０分かけて降圧する円筒形成形型。【選択図】図１
CYLINDRICAL MOLDING DIE AND METHOD FOR MANUFACTURING CYLINDRICAL CERAMIC MOLDING USING THE SAME
円筒形成形型およびこれを用いた円筒形セラミックス成形体の製造方法
ANDO ISAO (author) / IGARASHI SHIGERU (author) / OZAWA MAKOTO (author) / SOGABE KENTARO (author)
2016-05-23
Patent
Electronic Resource
Japanese
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