Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corundum refractory castable containing rare earth oxide and preparation method of corundum refractory castable
The invention belongs to the technical field of refractory materials, and relates to a corundum refractory castable containing rare earth oxide and a preparation method thereof. The refractory material comprises the following components in percentage by weight: 35-50% of brown fused alumina granules, 20-40% of mullite granules, 5-12% of white fused alumina powder, 2-5% of silica fume, 5-10% of silica sol, 5-10% of alpha-alumina powder, 0.05-0.10% of a water reducer and 1-5% of rare earth oxide, the rare earth oxide is a mixture of Nd2O3, La2O3 and Pr6O11, and the rare earth oxide is a rare earth oxide. The mass ratio of Nd2O3 to La2O3 to Pr6O11 is 1: 1: (0.3-0.6). The corundum refractory castable prepared by controlling the variety and proportion of the rare earth oxide and the specific variety of the water reducing agent has better high-temperature breaking strength and pressure resistance and low apparent porosity.
本发明属于耐火材料技术领域，涉及一种含稀土氧化物的刚玉质耐火浇注料及其制备方法。按重量百分含量计包括如下组分：棕刚玉颗粒料35‑50％，莫来石颗粒料20‑40％，白刚玉粉5‑12％，微硅粉2‑5％，硅溶胶5‑10％，α‑氧化铝粉5‑10％，减水剂0.05‑0.10％和稀土氧化物1‑5％；所述的稀土氧化物为Nd2O3、La2O3和Pr6O11的混合物；Nd2O3、La2O3和Pr6O11的质量比为1:1:(0.3‑0.6)。本发明通过控制稀土氧化物的种类和配比，以及减水剂的具体种类使制备得到的刚玉质耐火浇注料具有较好高温抗折强度和耐压性能以及低显气孔率。
Corundum refractory castable containing rare earth oxide and preparation method of corundum refractory castable
The invention belongs to the technical field of refractory materials, and relates to a corundum refractory castable containing rare earth oxide and a preparation method thereof. The refractory material comprises the following components in percentage by weight: 35-50% of brown fused alumina granules, 20-40% of mullite granules, 5-12% of white fused alumina powder, 2-5% of silica fume, 5-10% of silica sol, 5-10% of alpha-alumina powder, 0.05-0.10% of a water reducer and 1-5% of rare earth oxide, the rare earth oxide is a mixture of Nd2O3, La2O3 and Pr6O11, and the rare earth oxide is a rare earth oxide. The mass ratio of Nd2O3 to La2O3 to Pr6O11 is 1: 1: (0.3-0.6). The corundum refractory castable prepared by controlling the variety and proportion of the rare earth oxide and the specific variety of the water reducing agent has better high-temperature breaking strength and pressure resistance and low apparent porosity.
本发明属于耐火材料技术领域，涉及一种含稀土氧化物的刚玉质耐火浇注料及其制备方法。按重量百分含量计包括如下组分：棕刚玉颗粒料35‑50％，莫来石颗粒料20‑40％，白刚玉粉5‑12％，微硅粉2‑5％，硅溶胶5‑10％，α‑氧化铝粉5‑10％，减水剂0.05‑0.10％和稀土氧化物1‑5％；所述的稀土氧化物为Nd2O3、La2O3和Pr6O11的混合物；Nd2O3、La2O3和Pr6O11的质量比为1:1:(0.3‑0.6)。本发明通过控制稀土氧化物的种类和配比，以及减水剂的具体种类使制备得到的刚玉质耐火浇注料具有较好高温抗折强度和耐压性能以及低显气孔率。
Corundum refractory castable containing rare earth oxide and preparation method of corundum refractory castable
一种含稀土氧化物的刚玉质耐火浇注料及其制备方法
SHEN JINLONG (Autor:in) / XUE JIZHONG (Autor:in) / SHIN WOOK (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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