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Corundum-containing refractory brick and preparation method thereof
The invention relates to the technical field of refractory bricks, in particular to a corundum-containing refractory brick and a preparation method thereof.The preparation method comprises the following steps that 1, materials are mixed, specifically, raw materials are weighed according to the mass ratio, mixed to be uniform, heated and subjected to heat preservation, after heat preservation is completed, the raw materials are ground to 80-150 meshes, and a mixture is obtained; step 2, preparing slurry from the mixture: mixing the mixture with a composite additive and phenolic resin, adding water, uniformly stirring, and aging to obtain mixed slurry; step 3, pressurizing the mixed slurry: carrying out pressure forming on the mixed slurry, carrying out brick making, and baking at 1200-1350 DEG C for 4-5 hours to obtain a brick to be burnt; and step 4, firing the brick: firstly carrying out heat preservation on the brick to be fired, then heating to 1770-1790 DEG C, and then carrying out heat preservation for 24-32 hours to obtain the refractory brick. According to the invention, the raw materials such as carbon, silicon carbide, corundum, magnesia and the like are mixed and fired, so that the high-temperature resistance, scouring resistance and oxidation resistance of the refractory brick are improved.
本发明涉及耐火砖技术领域，具体涉及一种含刚玉的耐火砖及其制备方法，包括以下步骤：步骤1，混合物料：按质量配比称取原料混合均匀后升温并保温，保温完成后碾碎至80‑150目得到混合料；步骤2，混合料制浆：取混合料与复合外加剂和酚醛树脂混合，并加水搅拌均匀后陈化得到混合浆；步骤3，混合浆加压：在对混合浆加压成型，进行制砖，于1200‑1350℃下烘焙4‑5小时得到待烧砖；步骤4，烧制砖：先将待烧砖保温，然后升温至1770‑1790℃,再次保温24‑32小时，制得所述耐火砖。本发明中，通过将碳、碳化硅、刚玉、镁砂等原料进行混合制烧，使耐火砖的耐高温，耐冲刷和抗氧化性能得到了提升。
Corundum-containing refractory brick and preparation method thereof
The invention relates to the technical field of refractory bricks, in particular to a corundum-containing refractory brick and a preparation method thereof.The preparation method comprises the following steps that 1, materials are mixed, specifically, raw materials are weighed according to the mass ratio, mixed to be uniform, heated and subjected to heat preservation, after heat preservation is completed, the raw materials are ground to 80-150 meshes, and a mixture is obtained; step 2, preparing slurry from the mixture: mixing the mixture with a composite additive and phenolic resin, adding water, uniformly stirring, and aging to obtain mixed slurry; step 3, pressurizing the mixed slurry: carrying out pressure forming on the mixed slurry, carrying out brick making, and baking at 1200-1350 DEG C for 4-5 hours to obtain a brick to be burnt; and step 4, firing the brick: firstly carrying out heat preservation on the brick to be fired, then heating to 1770-1790 DEG C, and then carrying out heat preservation for 24-32 hours to obtain the refractory brick. According to the invention, the raw materials such as carbon, silicon carbide, corundum, magnesia and the like are mixed and fired, so that the high-temperature resistance, scouring resistance and oxidation resistance of the refractory brick are improved.
本发明涉及耐火砖技术领域，具体涉及一种含刚玉的耐火砖及其制备方法，包括以下步骤：步骤1，混合物料：按质量配比称取原料混合均匀后升温并保温，保温完成后碾碎至80‑150目得到混合料；步骤2，混合料制浆：取混合料与复合外加剂和酚醛树脂混合，并加水搅拌均匀后陈化得到混合浆；步骤3，混合浆加压：在对混合浆加压成型，进行制砖，于1200‑1350℃下烘焙4‑5小时得到待烧砖；步骤4，烧制砖：先将待烧砖保温，然后升温至1770‑1790℃,再次保温24‑32小时，制得所述耐火砖。本发明中，通过将碳、碳化硅、刚玉、镁砂等原料进行混合制烧，使耐火砖的耐高温，耐冲刷和抗氧化性能得到了提升。
Corundum-containing refractory brick and preparation method thereof
一种含刚玉的耐火砖及其制备方法
YANG QINGPING (author) / LIAO CHANGJIAN (author) / CHENG GANG (author)
2023-12-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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