Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alumina-based fused mullite and preparation method thereof
The invention relates to the technical field of mullite, and particularly discloses alumina-based fused mullite and a preparation method thereof, and the alumina-based fused mullite comprises the following components: 65-73 wt% of a mullite phase, 25-30 wt% of a corundum phase, and 2-5 wt% of a titanium-containing compound. The method comprises the following steps: smelting alumina, refining, leading out, and cooling, wherein the smelting temperature ranges from 1800 DEG C to 2000 DEG C, and the refining temperature ranges from 2100 DEG C to 2800 DEG C. The alumina-based fused mullite provided by the invention has the specific composition, not only has excellent thermal shock resistance index, but also has partial characteristics of corundum and alumina, has good high temperature resistance (refractoriness of more than 1800 DEG C) and corrosion resistance, and has high volume density (volume density of more than 3.2 g/cm3).
本发明涉及莫来石技术领域，具体公开一种矾土基电熔莫来石及其制备方法，该矾土基电熔莫来石包括以下组成：莫来石相含量为65‑73重量％，刚玉相含量为25‑30重量％，含钛化合物含量为2‑5重量％。该方法包括：将矾土进行冶炼，接着进行精炼，再进行引出，然后进行冷却；其中，所述冶炼的温度为1800‑2000℃，所述精炼的温度为2100‑2800℃。本发明的矾土基电熔莫来石具有前述特定的组成，不仅抗热震性指标优越，而且兼顾刚玉、矾土部分特性，其耐高温性(耐火度在1800℃以上)和耐腐蚀性好，具有高体积密度(体积密度在3.2g/cm3以上)。
Alumina-based fused mullite and preparation method thereof
The invention relates to the technical field of mullite, and particularly discloses alumina-based fused mullite and a preparation method thereof, and the alumina-based fused mullite comprises the following components: 65-73 wt% of a mullite phase, 25-30 wt% of a corundum phase, and 2-5 wt% of a titanium-containing compound. The method comprises the following steps: smelting alumina, refining, leading out, and cooling, wherein the smelting temperature ranges from 1800 DEG C to 2000 DEG C, and the refining temperature ranges from 2100 DEG C to 2800 DEG C. The alumina-based fused mullite provided by the invention has the specific composition, not only has excellent thermal shock resistance index, but also has partial characteristics of corundum and alumina, has good high temperature resistance (refractoriness of more than 1800 DEG C) and corrosion resistance, and has high volume density (volume density of more than 3.2 g/cm3).
本发明涉及莫来石技术领域，具体公开一种矾土基电熔莫来石及其制备方法，该矾土基电熔莫来石包括以下组成：莫来石相含量为65‑73重量％，刚玉相含量为25‑30重量％，含钛化合物含量为2‑5重量％。该方法包括：将矾土进行冶炼，接着进行精炼，再进行引出，然后进行冷却；其中，所述冶炼的温度为1800‑2000℃，所述精炼的温度为2100‑2800℃。本发明的矾土基电熔莫来石具有前述特定的组成，不仅抗热震性指标优越，而且兼顾刚玉、矾土部分特性，其耐高温性(耐火度在1800℃以上)和耐腐蚀性好，具有高体积密度(体积密度在3.2g/cm3以上)。
Alumina-based fused mullite and preparation method thereof
矾土基电熔莫来石及其制备方法
WANG XIONG (Autor:in) / SONG XINYUAN (Autor:in)
14.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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