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    • 4. 发明授权
    • Lightweight dry refractory
    • 轻质耐火耐火材料
    • US06458732B1
    • 2002-10-01
    • US09326722
    • 1999-06-07
    • Douglas K. DozaJohn Y. Liu
    • Douglas K. DozaJohn Y. Liu
    • C04B3500
    • C04B35/63448C04B35/632C04B35/63496C04B35/66
    • A dry refractory composition having superior insulating value. The dry refractory composition also may have excellent resistance to molten metals and slags. The composition includes filler lightweight material, which may be selected from perlite, vermiculite, expanded shale, expanded fireclay, expanded alumina silica hollow spheres, bubble alumina, sintered porous alumina, alumina spinel insulating aggregate, calcium alumina insulating aggregate, expanded mulllite, cordierite, and anorthite, and matrix material, which may be selected from calcined alumina, fused alumina, sintered magnesia, fused magnesia, silica fume, fused silica, silicon carbide, boron carbide, titanium diboride, zirconium boride, boron nitride, aluminum nitride, silicon nitride, Sialon, titanium oxide, barium sulfate, zircon, a sillimanite group mineral, pyrophyllite, fireclay, carbon, and calcium fluoride. The composition also may include dense refractory aggregate, which may be selected from calcined fireclay, calcined Chamotte, a sillimanite group mineral, calcined bauxite, pyrophyllite, silica, zircon, baddeleyite, cordierite, silicon carbide, sintered alumina, fused alumina, fused silica, sintered mullite, fused mullite, fused zirconia, sintered zirconia mullite, fused zirconia mullite, sintered magnesia, fused magnesia, sintered spinel, and fused spinel refractory grog, a heat activated bonding agent, and a dust suppressant.
    • 具有优异绝缘值的干燥耐火材料组合物。 干燥的耐火组合物也可以具有优异的耐熔融金属和炉渣的性能。 该组合物包括填料轻质材料,其可以选自珍珠岩,蛭石,膨胀页岩,膨胀火泥,膨胀氧化铝二氧化硅中空球,气泡氧化铝,烧结多孔氧化铝,氧化铝尖晶石绝缘骨料,钙氧化铝绝缘骨料,膨胀型矿石,堇青石, 钙长石和基质材料,其可以选自煅烧氧化铝,熔融氧化铝,烧结氧化镁,熔融氧化镁,硅灰,熔融二氧化硅,碳化硅,碳化硼,二硼化钛,硼化锆,氮化硼,氮化铝,氮化硅 锡隆,氧化钛,硫酸钡,锆石,硅线石矿物,叶蜡石,耐火粘土,碳和氟化钙。 组合物还可以包括致密的耐火骨料,其可以选自煅烧的耐火粘土,煅烧的Chamotte,硅线石族矿物,煅烧的铝土矿,叶蜡石,二氧化硅,锆石,菱镁矿,堇青石,碳化硅,烧结氧化铝,熔融氧化铝,熔融石英, 烧结莫来石,熔融莫来石,熔融氧化锆,烧结氧化锆莫来石,熔融氧化锆莫来石,烧结氧化镁,熔融氧化镁,烧结尖晶石和熔融尖晶石耐火材料,热活化粘合剂和防尘剂。