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Preparation method of high-strength calcium hexaluminate refractory material
The invention provides a preparation method of a high-strength calcium hexaluminate refractory material. The preparation method comprises the following steps: S1, mixing industrial alpha-Al2O3 and limestone raw materials, and grinding to obtain a first mixture; s2, carrying out heat treatment on the first mixed material and pressing the first mixed material into a first sample; s3, sintering and cooling the first sample to obtain a finished product, and S4, detecting the obtained finished product, synthesizing calcium hexaluminate through alpha-Al2O3 and limestone, and carrying out heat treatment on the raw materials, so that calcium hexaluminate with a certain content can be rapidly synthesized without generating calcium aluminate in other forms, the synthesis speed and densification process of the calcium hexaluminate phase can be improved during secondary sintering, and the yield of the calcium hexaluminate phase is improved. Therefore, the prepared calcium hexaluminate material has relatively high purity and compression strength.
本公开提供一种高强度六铝酸钙耐火材料的制备方法。S1、将工业α‑Al2O3和石灰石原料混合并进行研磨得到第一混料；S2、将所述第一混料进行热处理并压制成第一样品；S3、将所述第一样品进行烧结并冷却得到成品；S4、对得到的成品进行检测，通过α‑Al2O3和石灰石来进行六铝酸钙的合成，并对原料进行热处理，即可快速合成一定含量的六铝酸钙，同时不会产生其他形式的铝酸钙，在二次烧结时还可提高六铝酸钙相的合成速度以及致密化过程，进而保证制得的六铝酸钙材料具有较高纯度和耐压强度。
Preparation method of high-strength calcium hexaluminate refractory material
The invention provides a preparation method of a high-strength calcium hexaluminate refractory material. The preparation method comprises the following steps: S1, mixing industrial alpha-Al2O3 and limestone raw materials, and grinding to obtain a first mixture; s2, carrying out heat treatment on the first mixed material and pressing the first mixed material into a first sample; s3, sintering and cooling the first sample to obtain a finished product, and S4, detecting the obtained finished product, synthesizing calcium hexaluminate through alpha-Al2O3 and limestone, and carrying out heat treatment on the raw materials, so that calcium hexaluminate with a certain content can be rapidly synthesized without generating calcium aluminate in other forms, the synthesis speed and densification process of the calcium hexaluminate phase can be improved during secondary sintering, and the yield of the calcium hexaluminate phase is improved. Therefore, the prepared calcium hexaluminate material has relatively high purity and compression strength.
本公开提供一种高强度六铝酸钙耐火材料的制备方法。S1、将工业α‑Al2O3和石灰石原料混合并进行研磨得到第一混料；S2、将所述第一混料进行热处理并压制成第一样品；S3、将所述第一样品进行烧结并冷却得到成品；S4、对得到的成品进行检测，通过α‑Al2O3和石灰石来进行六铝酸钙的合成，并对原料进行热处理，即可快速合成一定含量的六铝酸钙，同时不会产生其他形式的铝酸钙，在二次烧结时还可提高六铝酸钙相的合成速度以及致密化过程，进而保证制得的六铝酸钙材料具有较高纯度和耐压强度。
Preparation method of high-strength calcium hexaluminate refractory material
一种高强度六铝酸钙耐火材料的制备方法
WEN TIANPENG (author) / WANG LIGUANG (author) / YUAN LEI (author) / YU JINGKUN (author) / LIU CHAOYANG (author) / YAN ZHENGGUO (author)
2024-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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