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Preparation method of calcium hexaluminate refractory material containing magnesium aluminate spinel
The invention relates to a preparation method of a calcium hexaluminate refractory material containing magnesium aluminate spinel. Analytically pure calcium oxide and analytically pure aluminum oxideare used as raw materials; magnesium oxide ultrafine powder (50nm, the purity of which is greater than or equal to 99.99%) is used as an additive; water as binding agent, the calcium hexaluminate refractory material prepared by premixing, mixing, drying, grinding, forming and sintering can generate magnesium aluminate spinel in situ, and the in-situ synthesized material omits the step of second-phase magnesium aluminate spinel synthesis, so that the technological process is simplified, the cost performance is higher, and the in-situ generated material particles are finer, thereby being beneficial to enhancing the mechanical properties.
本发明涉及一种含镁铝尖晶石的六铝酸钙质耐火材料的制备方法，以分析纯级的氧化钙、分析纯级的氧化铝为原料，氧化镁超细粉（50nm，纯度≥99.99%）为添加剂，水作为结合剂，经预混、混合、干燥、研磨、成型、烧成，制备的六铝酸钙质耐火材料可以原位生成镁铝尖晶石，而原位合成的材料省去了第二相镁铝尖晶石合成的步骤，使工艺过程得到了简化，性价比更高，而且原位生成的材料颗粒更加细小，有利于提高力学性能。
Preparation method of calcium hexaluminate refractory material containing magnesium aluminate spinel
The invention relates to a preparation method of a calcium hexaluminate refractory material containing magnesium aluminate spinel. Analytically pure calcium oxide and analytically pure aluminum oxideare used as raw materials; magnesium oxide ultrafine powder (50nm, the purity of which is greater than or equal to 99.99%) is used as an additive; water as binding agent, the calcium hexaluminate refractory material prepared by premixing, mixing, drying, grinding, forming and sintering can generate magnesium aluminate spinel in situ, and the in-situ synthesized material omits the step of second-phase magnesium aluminate spinel synthesis, so that the technological process is simplified, the cost performance is higher, and the in-situ generated material particles are finer, thereby being beneficial to enhancing the mechanical properties.
本发明涉及一种含镁铝尖晶石的六铝酸钙质耐火材料的制备方法，以分析纯级的氧化钙、分析纯级的氧化铝为原料，氧化镁超细粉（50nm，纯度≥99.99%）为添加剂，水作为结合剂，经预混、混合、干燥、研磨、成型、烧成，制备的六铝酸钙质耐火材料可以原位生成镁铝尖晶石，而原位合成的材料省去了第二相镁铝尖晶石合成的步骤，使工艺过程得到了简化，性价比更高，而且原位生成的材料颗粒更加细小，有利于提高力学性能。
Preparation method of calcium hexaluminate refractory material containing magnesium aluminate spinel
一种含镁铝尖晶石的六铝酸钙质耐火材料的制备方法
LUO XUDONG (author) / YANG ZHUO (author) / LI TING (author)
2020-04-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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