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A platform for research: civil engineering, architecture and urbanism
Lightweight corundum mullite hollow sphere brick and preparation method thereof
The invention relates to a lightweight corundum-mullite hollow sphere brick and a preparation method thereof, and relates to the technical field of refractory materials, the lightweight corundum-mullite hollow sphere brick comprises the following raw materials by weight: 35-40 parts of alumina hollow spheres, 20-30 parts of fused mullite, 5-15 parts of tabular corundum, 9-11 parts of sintered mullite, 3-6 parts of Guangxi white mud, and 5-7 parts of aluminum hydroxide. 0.5-1.5 parts of yttrium oxide, 10-15 parts of silicon carbide and 7-10 parts of a binding agent. The physicochemical index parameters of the light-weight corundum mullite hollow sphere brick provided by the invention are as follows: the volume density is 2.15-2.40, the refractoriness under load is greater than or equal to 1600 DEG C, the thermal shock stability is greater than 20 times, and the normal-temperature compressive strength is gt; the wear resistance is 1t, 70 mpa and 1t; 8-10, the expansion coefficient lt; 0.02, the heat conductivity coefficient at 800 DEG C is 1t; 1W/MK and the heat-resistant strength gt; the performance is excellent, and the defects in the prior art are overcome.
本发明涉及一种轻量化刚玉莫来石空心球砖及其制备方法，涉及耐火材料技术领域，以重量份数计，所述轻量化莫来石空心球砖包括以下原料：氧化铝空心球35‑40份，电熔莫来石20‑30份，板状刚玉5‑15份，烧结莫来石9‑11份，广西白泥3‑6份，氢氧化铝5‑7份，氧化钇0.5‑1.5份，碳化硅10‑15份，结合剂7‑10份。本发明提供的轻量化刚玉莫来石空心球砖理化指标参数包括：体积密度为2.15‑2.40，荷重软化温度≥1600℃，热震稳定性＞20次，常温耐压强度>70mpa，耐磨性<8‑10，膨胀系数<0.02，800℃导热系数<1W/MK，抗热强度>8MPA，性能优异，弥补了现有技术的不足。
Lightweight corundum mullite hollow sphere brick and preparation method thereof
The invention relates to a lightweight corundum-mullite hollow sphere brick and a preparation method thereof, and relates to the technical field of refractory materials, the lightweight corundum-mullite hollow sphere brick comprises the following raw materials by weight: 35-40 parts of alumina hollow spheres, 20-30 parts of fused mullite, 5-15 parts of tabular corundum, 9-11 parts of sintered mullite, 3-6 parts of Guangxi white mud, and 5-7 parts of aluminum hydroxide. 0.5-1.5 parts of yttrium oxide, 10-15 parts of silicon carbide and 7-10 parts of a binding agent. The physicochemical index parameters of the light-weight corundum mullite hollow sphere brick provided by the invention are as follows: the volume density is 2.15-2.40, the refractoriness under load is greater than or equal to 1600 DEG C, the thermal shock stability is greater than 20 times, and the normal-temperature compressive strength is gt; the wear resistance is 1t, 70 mpa and 1t; 8-10, the expansion coefficient lt; 0.02, the heat conductivity coefficient at 800 DEG C is 1t; 1W/MK and the heat-resistant strength gt; the performance is excellent, and the defects in the prior art are overcome.
本发明涉及一种轻量化刚玉莫来石空心球砖及其制备方法，涉及耐火材料技术领域，以重量份数计，所述轻量化莫来石空心球砖包括以下原料：氧化铝空心球35‑40份，电熔莫来石20‑30份，板状刚玉5‑15份，烧结莫来石9‑11份，广西白泥3‑6份，氢氧化铝5‑7份，氧化钇0.5‑1.5份，碳化硅10‑15份，结合剂7‑10份。本发明提供的轻量化刚玉莫来石空心球砖理化指标参数包括：体积密度为2.15‑2.40，荷重软化温度≥1600℃，热震稳定性＞20次，常温耐压强度>70mpa，耐磨性<8‑10，膨胀系数<0.02，800℃导热系数<1W/MK，抗热强度>8MPA，性能优异，弥补了现有技术的不足。
Lightweight corundum mullite hollow sphere brick and preparation method thereof
一种轻量化刚玉莫来石空心球砖及其制备方法
HAO LAIYIN (author) / HAO YITONG (author) / HAO YILU (author) / ZHAO HONGTAO (author)
2025-01-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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