CN107226682A - 一种高温耐火陶瓷及其制备方法 - Google Patents

一种高温耐火陶瓷及其制备方法 Download PDF

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CN107226682A
CN107226682A CN201710615237.4A CN201710615237A CN107226682A CN 107226682 A CN107226682 A CN 107226682A CN 201710615237 A CN201710615237 A CN 201710615237A CN 107226682 A CN107226682 A CN 107226682A
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王虎
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Hefei Ming Yu High Temperature Technology Co Ltd
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Abstract

本发明公开了一种高温耐火陶瓷,包括如下重量份的原料:白云石15~25份、方镁石20~40份、二氧化硅8~17份、瓷化粉4~9份、膨润土5~10份、高岭土7~12份、改性凹凸棒石粘土14~25份、碎玻璃3~12份、珍珠岩6~13份、石棉粉4~9份、纳米氧化铝3~9份、氧化锆2~8份、骨料4~10份、聚酯纤维2~4份、聚甲基丙烯酸羟乙酯2~5份、固化剂10~20份。本发明所述高温耐火陶瓷具有耐高温性能优异,耐火度高达1200℃以上,且强度高,收缩率低,耐酸碱腐蚀,耐老化,可以应用于温度较高的特殊场合,市场前景广阔。

Description

一种高温耐火陶瓷及其制备方法
技术领域
[0001] 本发明属于高温耐火材料技术领域,具体涉及一种高温耐火陶瓷及其制备方法。
背景技术
[0002] 陶瓷砖是由粘土、石英砂以及其他无机非金属原料,经配料、球磨、制粉、成型、烧 结等工艺生产的板状或块状陶瓷制品,广泛应用于装饰与保护建筑物、构筑物的墙面和地 面。随着房地产业的迅速发展,使得瓷砖的生产和消费都获得了较大的发展。目前市场上的 陶瓷砖耐火性较差,超过l〇〇〇°C,容易出现脱落现象,无法使用于温度较高的特殊场合。
发明内容
[0003] 本发明提供了一种高温耐火陶瓷及其制备方法,解决了上述背景技术中的问题, 本发明所述高温耐火陶瓷具有耐高温性能优异,耐火度高达1200°C以上,且强度高,收缩率 低,耐酸碱腐蚀,耐老化,可以应用于温度较高的特殊场合,市场前景广阔。
[0004] 为了解决现有技术存在的问题,采用如下技术方案: 一种高温耐火陶瓷,包括如下重量份的原料:白云石15〜25份、方镁石20〜40份、二氧 化娃8〜17份、瓷化粉4〜9份、膨润土5〜10份、高岭土7〜12份、改性凹凸棒石粘土 14〜25 份、碎玻璃3〜I2份、珍珠岩6〜13份、石棉粉4〜9份、纳米氧化铝3〜9份、氧化锆2〜8份、骨 料4〜10份、聚酯纤维2〜4份、聚甲基丙烯酸羟乙酯2〜5份、固化剂10〜20份。
[0005] 优选的,所述高温耐火陶瓷,包括如下重量份的原料:白云石18〜22份、方镁石25 〜35份、二氧化硅10〜15份、瓷化粉5〜8份、膨润土7〜9份、高岭土8〜11份、改性凹凸棒石 粘土 1S〜22份、碎玻璃6〜10份、珍珠岩9〜12份、石棉粉5〜8份、纳米氧化铝5〜7份、氧化锆 4〜7份、骨料6〜9份、聚酯纤维2_5〜3.4份、聚甲基丙烯酸羟乙酯3〜4份、固化剂13〜18份。 [0006]优选的,所述高温耐火陶瓷,包括如下重量份的原料:白云石20份、方镁石30份、二 氧化硅13份、瓷化粉7份、膨润土 8份、高岭土 10份、改性凹凸棒石粘土21份、碎玻璃7份、珍珠 岩10份、石棉粉7份、纳米氧化铝6份、氧化锆5份、骨料8份、聚酯纤维3.3份、聚甲基丙烯酸羟 乙酯3.6份、固化剂14份。
[0007] 优选的,所述固化剂为硅酸铝、硫酸铝中的任一种或两种的混合物。
[0008] 优选的,所述骨料选自碳化硅、氮化硅、碳氧化硅、碳氮氧化硅的任一种。
[0009] 优选的,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大 小至粒径<lmm,然后浸没到清水中,用电动搅拌机搅拌8〜17min,转速设定为350〜450r/ min,然后过滤将溶质浸没到无机稀酸溶液中水浴热处理1〇〇〜150分钟,温度设定在75〜95 °C之间,再向酸化后的悬浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理2〜3 小时后,最后对其进行离心处理,离心之后,取上层悬浮液经过过滤、干燥后输送到回转式 烘干炉内焙烧1〜2小时即可,焙烧温度为300〜400°C。
[0010] 一种制备所述高温耐火陶瓷的方法,包括如下步骤: (1)按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 枯土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙酯、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨4〜8小时,烘 干后进行熔炼,待其完全熔化后,搅拌3〜7分钟后进行快速水淬,得到破碎的颗粒,湿法球 磨5〜10小时,烘干,过100〜2〇〇目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨3 〜6小时,过1〇〇〜200目筛,静置5〜8小时,喷雾干燥成含水量为4〜8%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(¾所得的产物混合均匀,再加入剩余原料混合5〜10 分钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; (6) 将干坯以8〜13°C/min的速率升温至800〜900 °C,保温2〜3小时,再以3〜6°C/min 的速率升温至1100〜l2〇0°C,保温1〜2小时,然后以1〇〜2(TC/min的速率降温至750〜800 °C,保温40〜80分钟,冷却至常温,磨边,即得所述高温耐火陶瓷。
[0011] 优选的,所述步骤(5)中压制成型的压力为50〜70MPa。
[0012]本发明与现有技术相比,其具有以下有益效果: 本发明所述的高温耐火陶瓷采用白云石、方镁石、二氧化硅、瓷化粉作为原料,原料中 相互协同作用,制备出的高温耐火陶瓷具有耐高温性能优异,耐火度高达l2〇0°C以上;本发 明所述的高温耐火陶瓷原料中还添加了改性凹凸棒石粘土,改性凹凸棒石粘土和其他原料 相互配合,有效改善了所述高温耐火陶瓷的耐酸耐腐蚀性和耐老化性,延长其使用寿命,扩 大其使用场合。本发明所述的高温耐火陶瓷具有孔径细小、分布均匀的特点,在相同密度 下,该材料具有更好的隔热性、更高的强度、良好的抗侵蚀性以及,收缩率低,市场前景广 阔。
具体实施方式
[0013]下面结合具体实施例,进一步阐述本发明。这些实施例仅用于说明本发明而不用 于限制本发明的范围。
[0014] 实施例1 本实施例涉及一种高温耐火陶瓷,包括如下重量份的原料:白云石15份、方镁石20份、 二氧化硅8份、瓷化粉4份、膨润土 5份、高岭土 7份、改性凹凸棒石粘土 14份、碎玻璃3份、珍珠 岩6份、石棉粉4份、纳米氧化铝3份、氧化锆2份、骨料4份、聚酯纤维2份、聚甲基丙烯酸羟乙 酯2份、固化剂10份。
[0015]其中,所述固化剂为硅酸铝。
[0016]其中,所述骨料选自碳化硅。
[0017]其中,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大小 至粒径< 1mm,然后浸没到清水中,用电动搅拌机搅拌8min,转速设定为350r/min,然后过滤 将溶质浸没到无机稀酸溶液中水浴热处理1〇〇分钟,温度设定在75°C之间,再向酸化后的悬 浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理2小时后,最后对其进行离心处 理,离心之后,取上层悬浮液经过过滤、千燥后输送到回转式烘干炉内焙烧1小时即可,焙烧 温度为300°C。
[0018] —种制备所述高温耐火陶瓷的方法,包括如下步骤: (1) 按上述配方称取白z?石、方镁石、二氧化桂、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸轻乙醋、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨4小时,烘千 后进行熔炼,待其完全熔化后,搅拌3分钟后进行快速水淬,得到破碎的颗粒,湿法球磨5小 时,烘干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨3 小时,过100〜200目筛,静置5小时,喷雾干燥成含水量为4%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(3)所得的产物混合均勾,再加入剩余原料混合5分 钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; ⑹将干还以8°C/min的速率升温至8〇〇°C,保温2小时,再以3°C/min的速率升温至11〇〇 。(:,保温1小时,然后以l〇°C/min的速率降温至75〇。(:,保温40分钟,冷却至常温,磨边,即得 所述高温耐火陶瓷。
[0019]其中,所述步骤(5)中压制成型的压力为50MPa。
[0020] 实施例2 本实施例涉及一种高温耐火陶瓷,包括如下重量份的原料:白云石25份、方镁石40份、 二氧化硅17份、瓷化粉9份、膨润土 10份、高岭土 I2份、改性凹凸棒石粘土四份、碎玻璃12份、 珍珠岩13份、石棉粉9份、纳米氧化铝9份、氧化锆8份、骨料10份、聚酯纤维4份、聚甲基丙烯 酸羟乙酯5份、固化剂20份。
[0021 ]其中,所述固化剂为硫酸铝。
[0022]其中,所述骨料选自氮化硅。
[0023]其中,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大小 至粒径彡1mm,然后浸没到清水中,用电动搅拌机搅拌I7min,转速设定为45〇r/min,然后过 滤将溶质浸没到无机稀酸溶液中水浴热处理150分钟,温度设定在95。(:之间,再向酸化后的 悬浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理3小时后,最后对其进行离心 处理,离心之后,取上层悬浮液经过过滤、干燥后输送到回转式烘干炉内焙烧2小时即可,焙 烧温度为400°C。
[0024] —种制备所述高温耐火陶瓷的方法,包括如下步骤: (1) 按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙酯、 固化剂,备用; (2) 将白sr石、方镁石、二氧化桂、碎玻璃及骨料混合均勾,粉碎,湿法球磨g小时,供干 后进行熔炼,待其完全熔化后,搅拌7分钟后进行快速水淬,得到破碎的颗粒,湿法球磨10小 时,供干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨6 小时,过100〜200目筛,静置8小时,喷雾干燥成含水量为8%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(3)所得的产物混合均匀,再加入剩余原料混合10分 钟,得混合母料; (5)将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; ⑹将干坯以l3°C/min的速率升温至900°C,保温3小时,再以6°C/min的速率升温至 1200°C,保温2小时,然后以20°C/min的速率降温至800°C,保温80分钟,冷却至常温,磨边, 即得所述高温耐火陶瓷。
[0025] 其中,所述步骤(5)中压制成型的压力为70MPa。
[0026] 实施例3 本实施例涉及一种尚温耐火陶瓷,包括如下重量份的原料:白云石18份、方镁石25份、 二氧化硅10份、瓷化粉5份、膨润土7份、高岭土8份、改性凹凸棒石粘土 18份、碎玻璃6份、珍 珠岩9份、石棉粉5份、纳米氧化铝5份、氧化锆4份、骨料6份、聚酯纤维2.5份、聚甲基丙烯酸 羟乙酯3份、固化剂13份。
[0027]其中,所述固化剂为硅酸铝和硫酸铝的混合物。
[0028]其中,所述骨料选自碳氧化硅。
[0029]其中,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大小 至粒径彡1mm,然后浸没到清水中,用电动搅拌机搅拌lOmin,转速设定为380r/min,然后过 滤将溶质浸没到无机稀酸溶液中水浴热处理110分钟,温度设定在77。(:之间,再向酸化后的 悬浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理2 • 3小时后,最后对其进行离 心处理,离心之后,取上层悬浮液经过过滤、干燥后输送到回转式烘干炉内焙烧〖.2小时即 可,焙烧温度为330°C。
[0030] 一种制备所述高温耐火陶瓷的方法,包括如下步骤: (1) 按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙醋、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨5小时,烘干 后进行溶炼,待其元全溶化后,搅拌4分钟后进行快速水淬,得到破碎的颗粒,湿法球磨6小 时,烘干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨 3 • 5小时,过100〜2〇0目筛,静置5〜8小时,喷雾干燥成含水量为5%的颗粒,备用; (4) 将步骤(¾制得的产物与步骤(3)所得的产物混合均匀,再加入剩余原料混合6分 钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; ⑹将干坯以9°C/min的速率升温至820°C,保温2_2小时,再以rC/min的速率升温至 1110°C,保温1 •3小时,然后以11 °C/min的速率降温至760X:,保温45分钟,冷却至常温磨 边,即得所述高温耐火陶瓷。 ’
[0031]其中,所述步骤(5)中压制成型的压力为55MPa。
[0032] 实施例4 本实施例涉及一种高温耐火陶瓷,包括如下重量份的原料:白云石22份、方镁石35份、 二氧化硅15份、瓷化粉8份、膨润土9份、高岭土 11份、改性凹凸棒石粘土22份、碎玻璃1〇份、 珍珠岩12份、石棉粉8份、纳米氧化铝7份、氧化锆7份、骨料9份、聚酯纤维3.4份、聚甲基丙烯 酸羟乙酯4份、固化剂18份。
[0033]其中,所述固化剂为硅酸铝、硫酸铝的混合物。
[0034]其中,所述骨料选自碳氮氧化硅。
[0035]其中,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大小 至粒径<lram,然后浸没到清水中,用电动搅拌机搅拌12min,转速设定为400r/min,然后过 滤将溶质浸没到无机稀酸溶液中水浴热处理125分钟,温度设定在85°C之间,再向酸化后的 悬浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理2.5小时后,最后对其进行离 心处理,离心之后,取上层悬浮液经过过滤、干燥后输送到回转式烘干炉内焙烧1.5小时即 可,焙烧温度为350°C。
[OG36] —种制备所述高温耐火陶瓷的方法,包括如下步骤: (1) 按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙酯、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨6小时,烘干 后进行熔炼,待其完全熔化后,搅拌5分钟后进行快速水淬,得到破碎的颗粒,湿法球磨8小 时,烘干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨5 小时,过100〜200目筛,静置6小时,喷雾干燥成含水量为6%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(3)所得的产物混合均匀,再加入剩余原料混合7分 钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; (6) 将干坯以11°C/min的速率升温至850°C,保温2.5小时,再以5°C/min的速率升温至 1150°C,保温1 • 5小时,然后以15°C/min的速率降温至780°C,保温60分钟,冷却至常温,磨 边,即得所述高温耐火陶瓷。
[0037] 其中,所述步骤(5)中压制成型的压力为62MPa。
[0038] 实施例5 本实施例涉及一种高温耐火陶瓷,包括如下重量份的原料:白云石20份、方镁石30份、 二氧化硅I3份、瓷化粉7份、膨润土 8份、高岭土 10份、改性凹凸棒石粘土 21份、碎玻璃7份、珍 珠岩1〇份、石棉粉7份、纳米氧化铝6份、氧化锆5份、骨料8份、聚酯纤维3.3份、聚甲基丙烯酸 羟乙酯3.6份、固化剂14份。
[0039]其中,所述固化剂为硅酸铝、硫酸铝的混合物。
[0040]其中,所述骨料选自碳氧化硅。
[0041]其中,所述改性凹凸棒石粘土由以下方法制得:将凹凸棒石粘土粉碎至颗粒大小 至粒径彡1mm,然后浸没到清水中,用电动搅拌机搅拌I4min,转速设定为420r/min,然后过 滤将溶质浸没到无机稀酸溶液中水浴热处理140分钟,温度设定在90。(:之间,再向酸化后的 悬浮液中加入分散剂焦磷酸钠充分搅拌,协同超声水热法处理2.7小时后,最后对其进行离 心处理,离心之后,取上层悬浮液经过过滤、干燥后输送到回转式烘干炉内焙烧K8小时即 可,焙烧温度为370 °C。
[OO42] —种制备所述高温耐火陶瓷的方法,包括如下步骤: (1) 按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙酯、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨7小时,烘干 后进行熔炼,待其完全熔化后,搅拌6分钟后进行快速水淬,得到破碎的颗粒,湿法球磨8小 时,烘干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨5 小时,过100〜200目筛,静置7小时,喷雾干燥成含水量为7%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(3)所得的产物混合均匀,再加入剩余原料混合9分 钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; (6) 将干坯以12°C/min的速率升温至890°C,保温2 • 8小时,再以5°C/min的速率升温至 1 l8〇°C,保温1 • S小时,然后以lfC/min的速率降温至79〇°C,保温70分钟,冷却至常温,磨 边,即得所述高温耐火陶瓷。
[0043]其中,所述步骤(5)中压制成型的压力为65MPa。
[OO44]以上对本发明的具体实施例进行了描述。需要理解的是,本发明并不局限于上述 特定实施方式,本领域技术人员可以在权利要求的范围内做出各种变形或修改,这并不影 响本发明的实质内容。

Claims (8)

1. 一种高温耐火陶瓷,其特征在于,包括如下重量份的原料:白石石I5〜25份、方镁石 20〜40份、二氧化硅8〜17份、瓷化粉4〜9份、膨润土 5〜10份、高岭土 7〜12份、改性凹凸棒 石粘土 14〜25份、碎玻璃3〜12份、珍珠岩6〜I3份、石棉粉4〜9份、纳米氧化铝3〜9份、氧化 锆2〜8份、骨料4〜10份、聚酯纤维2〜4份、聚甲基丙烯酸羟乙酯2〜5份、固化剂10〜20份。
2. 根据权利要求1所述的高温耐火陶瓷,其特征在于,包括如下重量份的原料:白云石 18〜22份、方镁石25〜35份、二氧化硅1〇〜15份、瓷化粉5〜8份、膨润土 7〜9份、高岭土8〜 11份、改性凹凸棒石粘土 18〜22份、碎玻璃6〜10份、珍珠岩9〜12份、石棉粉5〜8份、纳米氧 化铝5〜7份、氧化锆4〜7份、骨料6〜9份、聚酯纤维2.5〜3.4份、聚甲基丙烯酸羟乙酯3〜4 份、固化剂13〜18份。
3. 根据权利要求1所述的高温耐火陶瓷,其特征在于,包括如下重量份的原料:白云石 20份、方镁石30份、二氧化硅I3份、瓷化粉7份、膨润土 8份、高岭土 1〇份、改性凹凸棒石粘土 21份、碎玻璃7份、珍珠岩10份、石棉粉7份、纳米氧化铝6份、氧化锆5份、骨料8份、聚酯纤维 3.3份、聚甲基丙烯酸羟乙酯3 • 6份、固化剂14份。
4. 根据权利要求1所述的高温耐火陶瓷,其特征在于,所述固化剂为硅酸铝、硫酸铝中 的任一种或两种的混合物。
5. 根据权利要求1所述的高温耐火陶瓷,其特征在于,所述骨料选自碳化硅、氮化硅、碳 氧化娃、碳氮氧化娃的任一种。
6. 根据权利要求1所述的高温耐火陶瓷,其特征在于,所述改性凹凸棒石粘土由以下方 法制得:将凹凸棒石粘土粉碎至颗粒大小至粒径< 1mm,然后浸没到清水中,用电动搅拌机 搅拌8〜17min,转速设定为350〜450r/min,然后过滤将溶质浸没到无机稀酸溶液中水浴热 处理100〜150分钟,温度设定在75〜95°C之间,再向酸化后的悬浮液中加入分散剂焦磷酸 钠充分搅拌,协同超声水热法处理2〜3小时后,最后对其进行离心处理,离心之后,取上层 悬浮液经过过滤、干燥后输送到回转式烘干炉内焙烧1〜2小时即可,焙烧温度为300〜400 V。
7.—种制备权利要求1〜6任一项所述高温耐火陶瓷的方法,其特征在于,包括如下步 骤: (1) 按上述配方称取白云石、方镁石、二氧化硅、瓷化粉、膨润土、高岭土、改性凹凸棒石 粘土、碎玻璃、珍珠岩、石棉粉、纳米氧化铝、氧化锆、骨料、聚酯纤维、聚甲基丙烯酸羟乙酯、 固化剂,备用; (2) 将白云石、方镁石、二氧化硅、碎玻璃及骨料混合均匀,粉碎,湿法球磨4〜8小时,烘 干后进行熔炼,待其完全熔化后,搅拌3〜7分钟后进行快速水淬,得到破碎的颗粒,湿法球 磨5〜10小时,烘干,过100〜200目筛,备用; (3) 将瓷化粉、膨润土、高岭土、改性凹凸棒石粘土及珍珠岩混合均匀,粉碎,湿法球磨3 〜6小时,过100〜200目筛,静置5〜8小时,喷雾干燥成含水量为4〜8%的颗粒,备用; (4) 将步骤(2)制得的产物与步骤(3)所得的产物混合均匀,再加入剩余原料混合5〜10 分钟,得混合母料; (5) 将步骤(4)制得的混合母料置于成型机中压制成型,然后进行干燥,得干坯; (6) 将千坯以8〜13°C/min的速率升温至800〜900 °C,保温2〜3小时,再以3〜6°C/min 的速率升温至U00〜l2〇(TC,保温1〜2小时,然后以1〇〜20 °C/min的速率降温至750〜800 °C,保温40〜80分钟,冷却至常温,磨边,即得所述高温耐火陶瓷。
8.根据权利要求7所述的制备方法,其特征在于,所述步骤(5)中压制成型的压力为50 〜70MPa。
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