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    REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER
    1.
    发明公开
    REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER 审中-公开

    公开(公告)号：EP4450474A1

    公开(公告)日：2024-10-23

    申请号：EP23763266.6

    申请日：2023-02-17

    申请人： Krosakiharima Corporation

    发明人： LI, Ling ,  MORIKAWA, Katsumi ,  MATSUMOTO, Shigefumi

    IPC分类号： C04B35/103 ,  B22D41/54

    摘要： The present invention improves corrosion resistance and thermal shock resistance of a refractory product and a refractory member for continuous casting. A refractory product according to the present invention contains a free carbon component in an amount of 10% by mass to 30% by mass, and the remainder in which: a main mineral phase is comprised of one or more selected from the group consisting of corundum, spinel, and periclase, wherein the content of the periclase is less than 40% by mass; and the total content of a silica component and a silicon carbide component is less than 15% by mass. When a remainder after excluding a composition comprised of the free carbon component from a composition of the refractory product is defined as 100% by volume, refractory particles having a particle size of greater than 0.3 mm account for 20% by volume or more, and refractory particles having a particle size of 0.045 mm or less account for 3% by volume to 30% by volume, wherein an approximately continuous void layer is present around each of a plurality of coarse particles at least one of which has the largest particle size among refractory particles in the refractory product, wherein the approximately continuous void layer has a similar shape to the coarse particle. The refractory product has an apparent porosity of 16% or less, and a maximum thermal expansion rate at a temperature up to 1500°C is 0.6% or less.