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A platform for research: civil engineering, architecture and urbanism
Ultralow-porosity high-alumina brick and preparation process thereof
The invention discloses an ultralow-porosity high-alumina brick and a preparation process thereof. The invention discloses an ultralow-porosity high-alumina brick which comprises the following components in parts by weight: 30-40 parts of tabular corundum, 15-25 parts of fused brown corundum, 10-20 parts of tabular corundum powder, 10-20 parts of aluminum oxide superfine powder, 2-6 parts of clay,2-6 parts of a binding agent A and 2-8 parts of a binding agent B. The binding agent A comprises concentrated phosphoric acid and water, and the binding agent B comprises alumina sol and water. And the apparent porosity of the ultralow-porosity high-alumina brick is below 10%. The invention discloses a preparation process of an ultralow-porosity high-alumina brick. The preparation process comprises the following process steps: a, fully dispersing and uniformly mixing tabular corundum and fused brown corundum; b, adding the binding agent A, then adding tabular corundum powder, clay, and alumina superfine powder, mixing, then adding the binding agent B, and mixing; c, pressing the mixture into molded green bricks by using a hydraulic machine; and d, firing the green bricks in a tunnel kiln.
本发明公开了一种超低气孔高铝砖及其制备工艺。一种超低气孔高铝砖，组成成分按重量份计为：板状刚玉30‑40份、电熔棕刚玉15‑25份、板刚玉粉10‑20份、氧化铝超微粉10‑20份、粘土2‑6份、结合剂A 2‑6份、结合剂B 2‑8份，所述的结合剂A的组分包括浓磷酸、水，结合剂B的组分包括铝溶胶、水，超低气孔高铝砖的显气孔率在10%以下。一种超低气孔高铝砖的制备工艺，包括如下工艺步骤：a.将板状刚玉、电熔棕刚玉充分分散混匀；b.加入结合剂A，然后再加入板刚玉粉、粘土氧化铝超微粉，混练，之后再加入结合剂B，再混练；c.将混合物使用液压机压成成型的砖坯；d.在隧道窑中将砖坯烧成。
Ultralow-porosity high-alumina brick and preparation process thereof
The invention discloses an ultralow-porosity high-alumina brick and a preparation process thereof. The invention discloses an ultralow-porosity high-alumina brick which comprises the following components in parts by weight: 30-40 parts of tabular corundum, 15-25 parts of fused brown corundum, 10-20 parts of tabular corundum powder, 10-20 parts of aluminum oxide superfine powder, 2-6 parts of clay,2-6 parts of a binding agent A and 2-8 parts of a binding agent B. The binding agent A comprises concentrated phosphoric acid and water, and the binding agent B comprises alumina sol and water. And the apparent porosity of the ultralow-porosity high-alumina brick is below 10%. The invention discloses a preparation process of an ultralow-porosity high-alumina brick. The preparation process comprises the following process steps: a, fully dispersing and uniformly mixing tabular corundum and fused brown corundum; b, adding the binding agent A, then adding tabular corundum powder, clay, and alumina superfine powder, mixing, then adding the binding agent B, and mixing; c, pressing the mixture into molded green bricks by using a hydraulic machine; and d, firing the green bricks in a tunnel kiln.
本发明公开了一种超低气孔高铝砖及其制备工艺。一种超低气孔高铝砖，组成成分按重量份计为：板状刚玉30‑40份、电熔棕刚玉15‑25份、板刚玉粉10‑20份、氧化铝超微粉10‑20份、粘土2‑6份、结合剂A 2‑6份、结合剂B 2‑8份，所述的结合剂A的组分包括浓磷酸、水，结合剂B的组分包括铝溶胶、水，超低气孔高铝砖的显气孔率在10%以下。一种超低气孔高铝砖的制备工艺，包括如下工艺步骤：a.将板状刚玉、电熔棕刚玉充分分散混匀；b.加入结合剂A，然后再加入板刚玉粉、粘土氧化铝超微粉，混练，之后再加入结合剂B，再混练；c.将混合物使用液压机压成成型的砖坯；d.在隧道窑中将砖坯烧成。
Ultralow-porosity high-alumina brick and preparation process thereof
一种超低气孔高铝砖及其制备工艺
XIN GUIYAN (author) / LEI QIZHEN (author) / GUO XIAOWEI (author) / SUN GAOYANG (author) / ZHOU ZHANFEI (author) / FAN CHAOHUI (author) / FAN LINHAO (author) / LI SHAOGUANG (author)
2021-01-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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