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    • 4. 发明申请
    • CASTABLE REFRACTORY SYSTEMS
    • 可铸造的制冷系统
    • WO1996025371A1
    • 1996-08-22
    • PCT/GB1996000362
    • 1996-02-16
    • ALCAN CHEMICALS LIMITEDAZIZIAN, FaridWILLS, Kevin, John
    • ALCAN CHEMICALS LIMITED
    • C04B35/66
    • C04B35/63472C04B35/632C04B35/63488C04B35/6365C04B35/66C04B2111/1043C04B2235/3217C04B2235/3418C04B2235/72
    • A composition suitable for admixture with refractory grains to make a refractory monolithic formulation, consists essentially of: 2 to 10 parts by weight of activated alumina; 0.25 to 1.0 parts by weight of an additive material which comprises at least one of alumino-silicate-phosphate compound; a resin derived from an aldehyde and either an amine or an aromatic hydroxy compound; cellulose; polyethylene glycol(s); and methoxy polyethylene glycols; and, optionally up to 50 parts by weight of fine alumina; up to 10 parts by weight of fine silica; and up to 1 part by weight of a dispersant; no more than 1 part by weight (and preferably none) calcium aluminate cement. The formulation comprises the above composition with up to 97.5 weight percent of the inert refractory grains. In use it shows good green strength, even when cast below room temperature, thereby facilitating handling, and after firing it shows good high temperature properties (such as hot modulus of rupture) and a good cold crushing strength.
    • 适用于与难熔颗粒混合以制成耐火整体制剂的组合物基本上由以下组成:2至10重量份活性氧化铝; 0.25至1.0重量份的包含至少一种铝硅酸盐 - 磷酸盐化合物的添加剂材料; 衍生自醛和胺或芳族羟基化合物的树脂; 纤维素; 聚乙二醇; 和甲氧基聚乙二醇; 和任选地至多50重量份的细氧化铝; 最多10重量份的细二氧化硅; 和至多1重量份的分散剂; 不超过1重量份(优选没有)铝酸钙水泥。 该制剂包含上述组合物和至多97.5重量%的惰性耐火材料颗粒。 在使用中,即使在低于室温的情况下也能显示出良好的生坯强度,因此易于处理,烧成后显示出良好的高温性(例如热断裂模量)和良好的冷破碎强度。