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    • 9. 发明公开
    • 연속 주조 노즐
    • 喷嘴用于连续铸造
    • KR1020070004031A
    • 2007-01-05
    • KR1020067021140
    • 2005-03-14
    • 구로사키 하리마 코포레이션신닛테츠스미킨 카부시키카이샤
    • 오가타고지고가사에코후쿠나가신이치
    • B22D11/10B22D41/54
    • C04B35/6262B22D41/54C04B35/03
    • A nozzle for use in continuous casting which has a refractory containing dolomite clinker being arranged in its surface contacting with a molten steel, wherein the compounded refractory comprises a dolomite clinker having an average particle size of 0.8 mm or less and having the content of CaO of 50 mass % or less, a compounded binder is added in a manner such that the ratio of W1/W2 is 0.33 or more, where W1 represents the content in mass of CaO and W2 represents the content in mass of MgO, and the refractory is produced by kneading the resulting compound, followed by forming and heat treatment, or wherein the compounded refractory comprises a dolomite clinker and a magnesia clinker, the ratio of WD/WM is 0.5 to 1.5 where WD represents a mass % of particles having a particle size of 1 mm or less in the size distribution of the dolomite clinker and WM represents a mass % of particles having a particle size of 1 mm or less in the size distribution of the magnesia clinker, and the ratio of W1/W2 is 0.33 to 3.0 where W1 represents the content % in mass of CaO and W2 represents the content % in mass of MgO. The above nozzle for use in continuous casting exhibits, in casting a molten steel, improved corrosion resistance, in addition to the excellent function to prevent the adhesion of alumina contained in the molten steel to an operating surface due to a casting operation for a long period of time. ® KIPO & WIPO 2007
    • 一种用于连续铸造的喷嘴,其具有含有白云石熟料的耐火材料,其在与钢水接触的表面中布置,其中所述复合耐火材料包括平均粒径为0.8mm或更小并且具有CaO含量的白云石熟料 50质量%以下,以W1 / W2的比例为0.33以上的方式添加复合粘合剂,其中W1表示CaO的质量含量,W2表示MgO的质量含量,耐火材料为 通过捏合所得化合物,然后进行成型和热处理,或其中复合耐火材料包含白云石熟料和氧化镁熟料,WD / WM的比例为0.5至1.5,其中WD表示具有粒度的颗粒的质量% 在白云石熟料的尺寸分布中为1mm以下,WM表示在氧化镁熟料的粒度分布中具有1mm以下的粒径的粒子的质量%, W1 / W2为0.33〜3.0,其中W1表示CaO的质量含量%,W2表示MgO的质量含量%。 用于连续铸造的上述喷嘴在铸造钢水中表现出改进的耐腐蚀性,除了具有优异的功能以外,防止由于长时间的铸造操作而使包含在钢水中的氧化铝粘附到操作表面上 的时间。 ®KIPO&WIPO 2007