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    • 5. 发明专利
    • Method for manufacturing ceramic molding
    • 制造陶瓷成型的方法
    • JP2003300781A
    • 2003-10-21
    • JP2002102550
    • 2002-04-04
    • Ss Alloy Kkエス.エス.アロイ株式会社
    • KIKUCHI KOTAROKIKUCHI MIYAKO
    • C04B35/64
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a ceramic molding by which the molding is manufactured in a short period of time, working property is improved, consumption of energy is lowered and environmental preservation is improved. SOLUTION: This method for manufacturing the ceramic molding includes a loading process for loading a powdery sintering material M composed of a metal oxide held between a pair of counter electrodes 50 (51, 52) into the inside of a cylindrical mold 60, a conductive layer forming process for forming a conductive layer due to a decrease in oxygen on the outer surface of the powdery sintering material M by heating the mold 60 by a mold heating member 80 in a state that the inside of the mold 60 is in a pressure reduced atmosphere, and a sintering process for sintering the powdery sintering material M having the conductive layer by heating the powdery sintering material M to a sintering temperature by the supply of current between the counter electrodes at least after the conductive layer forming process and pressing the counter electrodes 50 in a direction to be close to each other in or after the conductive layer forming process. COPYRIGHT: (C)2004,JPO
    • 待解决的问题:为了提供一种在短时间内制造模制品的陶瓷模制品的制造方法,提高了加工性能,降低了能量消耗并提高了环境保存性。 解决方案:该陶瓷成型体的制造方法包括将由保持在一对对置电极50(51,52)之间的金属氧化物构成的粉末状烧结材料M载入圆筒形模具60的内部的装载工序, 用于通过在模具60的内部处于模具加热部件80的状态下通过模具加热部件80加热模具60而由于粉末烧结材料M的外表面上的氧的降低而形成导电层的导电层形成工艺 至少在导电层形成工序之后,通过将相对电极之间的电流加热而将粉末状烧结材料M加热至烧结温度,并且对所述导电层的粉末烧结材料M进行烧结, 在导电层形成工序之中或之后,在彼此靠近的方向上的对置电极50。 版权所有(C)2004,JPO
    • 9. 发明专利
    • Hard mold suitable for energization heating and material therefor
    • 适用于加热及其材料的硬模
    • JP2012246537A
    • 2012-12-13
    • JP2011119663
    • 2011-05-27
    • National Institute Of Advanced Industrial Science & Technology独立行政法人産業技術総合研究所Ss Alloy Kkエス.エス.アロイ株式会社
    • NAKAYAMA HIROYUKIKOBAYASHI KEIZOKIKUCHI KOTARONOZAKI MAYUKA
    • C22C29/08B22F3/14C22C29/14C22C29/16
    • PROBLEM TO BE SOLVED: To provide a hard mold suitable for energization heating and a material therefor.SOLUTION: A mold for energization sintering is structured by a composite hard material. The composite hard material is composed of a sintered body of a hard composite material, wherein the hard composite material is prepared by dispersing spherical carbon in a composite material made of conductive ceramic particles and an intermetallic compound of iron and aluminum. The composite hard material has a composite structure in which carbon particles are dispersed in a metallic binder phase of the intermetallic compound composed of iron and aluminum. The conductive ceramic particles contain tungsten and/or titanium. The dispersed carbon is 10 mass% or less of the composite hard material. The composite hard material is suitable for energization sintering. The dispersed carbon has a particle size of 20 μm or less. The metallic binder phase composed of iron and aluminum is 40 mass% or less of the composite hard material. A new composite hard material and the mold for energization sintering can be provided.
    • 要解决的问题:提供适于通电加热的硬质模具及其材料。 解决方案:用于通电烧结的模具由复合硬质材料构成。 复合硬质材料由硬质复合材料的烧结体组成,其中硬质复合材料通过将球形碳分散在由导电陶瓷颗粒和铁和铝的金属间化合物制成的复合材料中而制备。 复合硬质材料具有其中碳颗粒分散在由铁和铝构成的金属间化合物的金属粘结相中的复合结构。 导电陶瓷颗粒含有钨和/或钛。 分散碳为复合硬质材料的10质量%以下。 复合硬质材料适用于通电烧结。 分散碳的粒径为20μm以下。 由铁和铝组成的金属粘结相是复合硬质材料的40质量%以下。 可以提供新的复合硬质材料和用于通电烧结的模具。 版权所有(C)2013,JPO&INPIT