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    High zirconia fused cast refractory
    1.
    发明授权
    High zirconia fused cast refractory 有权
    高氧化锆熔融耐火材料

    公开(公告)号：US09475735B2

    公开(公告)日：2016-10-25

    申请号：US14415288

    申请日：2014-08-14

    Applicant: SAINT-GOBAIN TM K.K.

    Inventor： Toshimitsu Kuboki ,  Hiroshi Sugiyama ,  Yasuo Misu ,  Itaru Hashimoto

    IPC: C04B35/48 ,  C04B35/49 ,  C03B5/43 ,  C04B35/657 ,  F27B14/10 ,  F27D1/00 ,  C04B35/484 ,  F27D1/16

    CPC classification number: C04B35/49 ,  C03B5/43 ,  C04B35/48 ,  C04B35/484 ,  C04B35/657 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/327 ,  C04B2235/3272 ,  C04B2235/3281 ,  C04B2235/3293 ,  C04B2235/34 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/72 ,  F27B14/10 ,  F27D1/00 ,  F27D1/0006 ,  F27D1/16

    Abstract: [Problems] To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time.[Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of ZrO2, from 0.4 to 2.5% by weight of Al2O3, from 3.5 to 10% by weight of SiO2, from 0.05 to 1% by weight in total of Na2O and K2O, more than 0.04% by weight and 1% by weight or less of B2O3, 0.02% by weight or less of P2O5, 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of SnO2, and 0.3% by weight or less in total of Fe2O3 and TiO2.

    Abstract translation: [问题的解决方案]一种高氧化锆熔融铸造耐火材料，其包含作为化学成分的85至95重量％的ZrO 2，0.4至2.5重量％的Al 2 O 3，3.5至10重量％的SiO 2，0.05至 Na 2 O和K 2 O的总重量为1重量％，大于0.04重量％，B 2为1重量％以下，P 2 O 5为0.02重量％以下，MgO为0.05重量％以下，0.01〜0.2重量％ 的CaO，在含有SrO和BaO的情况下，为0.3〜3重量％的SrO或超过0.5重量％且3重量％以下的BaO，在两者均为 含有0.3重量％以上的SrO和0.3〜3重量％的SrO和BaO，0.01〜0.7重量％的SnO 2和0.3重量％以下的Fe 2 O 3和0.3重量％ TiO2。

    HIGH ALUMINA FUSED CAST REFRACTORY AND METHOD OF PRODUCING SAME
    4.
    发明申请
    HIGH ALUMINA FUSED CAST REFRACTORY AND METHOD OF PRODUCING SAME 有权

    公开(公告)号：US20210053878A1

    公开(公告)日：2021-02-25

    申请号：US16981557

    申请日：2019-08-13

    Applicant: Saint-Gobain TM K.K.

    Inventor： Koya Abe ,  Hiroshi Sugiyama ,  Shinji Tsuchiya ,  Itaru Hashimoto ,  Yasuo Misu

    IPC: C04B35/107 ,  C04B35/64

    Abstract: The present invention provides a high alumina fused cast refractory that is easily produced and has low porosity and high corrosion resistance, and a method of producing the same. The high alumina fused cast refractory of the present invention has the following chemical composition: 95.0 mass % to 99.5 mass % Al2O3, 0.20 mass % to 1.50 mass % SiO2, 0.05 mass % to 1.50 mass % B2O3, 0.05 mass % to 1.20 mass % MgO and balance. The method of producing the high alumina fused cast refractory of the present invention includes obtaining a mixture by mixing an Al2O3 source material, a SiO2 source material, a B2O3 source material and an MgO source material, and fusing the mixture.

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