Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mullite corundum zirconia refractory slab and preparation method thereof
The invention relates to a mullite corundum zirconia refractory slab and a preparation method thereof. The technical scheme comprises the steps: mixing kyanite tailings and aluminum oxide fine powderaccording to the mass ratio of Al2O3 to SiO2 being (2.6-2.8): 1, and obtaining a mixture; and adding 3-5wt% of metal aluminum powder and 4-6wt% of zirconium oxychloride aqueous solution into the mixture, mixing, mechanically pressing, molding, drying, keeping the temperature at 1450-1500 DEG C for 4-6 hours, naturally cooling, and crushing to obtain the mullite aggregate; using 40 to 60 weight percent of mullite aggregate, 35 to 50 weight percent of tabular corundum fine powder and 5 to 15 weight percent of aluminum oxide micro powder as raw materials; adding 2-4wt% of monatomic silicon powderand 6-8wt% of polyvinyl alcohol solution into the raw materials, uniformly mixing, carrying out mechanical pressing, drying, carrying out heat preservation at 1500-1600 DEG C for 8-10 hours, and naturally cooling to obtain the mullite corundum zirconia refractory slab. The production cost is low, large-scale production is facilitated, and the prepared product is high in strength, good in high-temperature performance and wide in using temperature range.
本发明涉及一种莫来石刚玉氧化锆棚板及其制备方法。其技术方案是：以Al2O3∶SiO2的质量比为(2.6～2.8)∶1，将蓝晶石尾矿和氧化铝细粉混合，得混合料；再外加所述混合料3～5wt％的金属铝粉和4～6wt％的氧氯化锆水溶液，混合，机压成型，干燥，在1450～1500℃条件下保温4～6h，自然冷却，破碎，即得莫来石骨料。以40～60wt％的所述莫来石骨料、35～50wt％的板状刚玉细粉和5～15wt％的氧化铝微粉为原料，外加所述原料2～4wt％的单质硅粉和6～8wt％的聚乙烯醇溶液，混合均匀，机压成型，干燥，在1500～1600℃条件下保温8～10h，自然冷却，制得莫来石刚玉氧化锆棚板。本发明生产成本低和便于规模化生产，所制制品强度高、高温性能好和使用温度范围广。
Mullite corundum zirconia refractory slab and preparation method thereof
The invention relates to a mullite corundum zirconia refractory slab and a preparation method thereof. The technical scheme comprises the steps: mixing kyanite tailings and aluminum oxide fine powderaccording to the mass ratio of Al2O3 to SiO2 being (2.6-2.8): 1, and obtaining a mixture; and adding 3-5wt% of metal aluminum powder and 4-6wt% of zirconium oxychloride aqueous solution into the mixture, mixing, mechanically pressing, molding, drying, keeping the temperature at 1450-1500 DEG C for 4-6 hours, naturally cooling, and crushing to obtain the mullite aggregate; using 40 to 60 weight percent of mullite aggregate, 35 to 50 weight percent of tabular corundum fine powder and 5 to 15 weight percent of aluminum oxide micro powder as raw materials; adding 2-4wt% of monatomic silicon powderand 6-8wt% of polyvinyl alcohol solution into the raw materials, uniformly mixing, carrying out mechanical pressing, drying, carrying out heat preservation at 1500-1600 DEG C for 8-10 hours, and naturally cooling to obtain the mullite corundum zirconia refractory slab. The production cost is low, large-scale production is facilitated, and the prepared product is high in strength, good in high-temperature performance and wide in using temperature range.
本发明涉及一种莫来石刚玉氧化锆棚板及其制备方法。其技术方案是：以Al2O3∶SiO2的质量比为(2.6～2.8)∶1，将蓝晶石尾矿和氧化铝细粉混合，得混合料；再外加所述混合料3～5wt％的金属铝粉和4～6wt％的氧氯化锆水溶液，混合，机压成型，干燥，在1450～1500℃条件下保温4～6h，自然冷却，破碎，即得莫来石骨料。以40～60wt％的所述莫来石骨料、35～50wt％的板状刚玉细粉和5～15wt％的氧化铝微粉为原料，外加所述原料2～4wt％的单质硅粉和6～8wt％的聚乙烯醇溶液，混合均匀，机压成型，干燥，在1500～1600℃条件下保温8～10h，自然冷却，制得莫来石刚玉氧化锆棚板。本发明生产成本低和便于规模化生产，所制制品强度高、高温性能好和使用温度范围广。
Mullite corundum zirconia refractory slab and preparation method thereof
一种莫来石刚玉氧化锆棚板及其制备方法
XIANG RUOFEI (Autor:in) / LI YUANBING (Autor:in) / HE XIAOHONG (Autor:in)
27.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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