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Whisker-reinforced lightweight alumina-carbon refractory material and preparation method thereof
The invention relates to a whisker-reinforced lightweight alumina-carbon refractory material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: preparing 20-30wt% of modified porous ceramic particles I and 25-35wt% of modified porous ceramic particles II as aggregates, and taking 24-36wt% of modified porous ceramic fine powder, 2-6wt% of elemental Si powder and 4-10wt% of carbon powder as matrixes; then placing the aggregate in a stirrer, adding modified liquid thermosetting phenolic resin accounting for 2-6wt% of the sum of the aggregate and the matrix, mixing the components, adding the matrix, uniformly stirring the mixture and carrying out mechanical pressing; carrying out heat treatment at 180-310 DEG C and then heat preservation at 1100-1450 DEG C in a carbon burying environment for 3-10 hours; and naturally cooling the mixture to prepare the whisker-reinforced lightweight alumina-carbon refractory material. The prepared product has the characteristics of low heat conductivity coefficient, high strength, excellent thermal shock resistance and good slag resistance and oxidation resistance.
本发明涉及一种晶须增强轻量化铝碳质耐火材料及其制备方法。其技术方案是：以20～30wt％的改性多孔陶瓷颗粒I、25～35wt％的改性多孔陶瓷颗粒II为骨料，以24～36wt％的改性多孔陶瓷细粉、2～6wt％的单质Si粉和4～10wt％的碳粉为基质；先将所述骨料置于搅拌机中，加入占所述骨料和所述基质之和2～6wt％的改性液态热固性酚醛树脂，混合，再加入所述基质，搅拌均匀，机压成型，在180～310℃条件下热处理，最后在1100～1450℃和埋碳环境中保温3～10小时，自然冷却，制得晶须增强轻量化铝碳质耐火材料。所制制品具有导热系数低、强度高、热震稳定性能优异、抗渣性能和抗氧化性能好的特点。
Whisker-reinforced lightweight alumina-carbon refractory material and preparation method thereof
The invention relates to a whisker-reinforced lightweight alumina-carbon refractory material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: preparing 20-30wt% of modified porous ceramic particles I and 25-35wt% of modified porous ceramic particles II as aggregates, and taking 24-36wt% of modified porous ceramic fine powder, 2-6wt% of elemental Si powder and 4-10wt% of carbon powder as matrixes; then placing the aggregate in a stirrer, adding modified liquid thermosetting phenolic resin accounting for 2-6wt% of the sum of the aggregate and the matrix, mixing the components, adding the matrix, uniformly stirring the mixture and carrying out mechanical pressing; carrying out heat treatment at 180-310 DEG C and then heat preservation at 1100-1450 DEG C in a carbon burying environment for 3-10 hours; and naturally cooling the mixture to prepare the whisker-reinforced lightweight alumina-carbon refractory material. The prepared product has the characteristics of low heat conductivity coefficient, high strength, excellent thermal shock resistance and good slag resistance and oxidation resistance.
本发明涉及一种晶须增强轻量化铝碳质耐火材料及其制备方法。其技术方案是：以20～30wt％的改性多孔陶瓷颗粒I、25～35wt％的改性多孔陶瓷颗粒II为骨料，以24～36wt％的改性多孔陶瓷细粉、2～6wt％的单质Si粉和4～10wt％的碳粉为基质；先将所述骨料置于搅拌机中，加入占所述骨料和所述基质之和2～6wt％的改性液态热固性酚醛树脂，混合，再加入所述基质，搅拌均匀，机压成型，在180～310℃条件下热处理，最后在1100～1450℃和埋碳环境中保温3～10小时，自然冷却，制得晶须增强轻量化铝碳质耐火材料。所制制品具有导热系数低、强度高、热震稳定性能优异、抗渣性能和抗氧化性能好的特点。
Whisker-reinforced lightweight alumina-carbon refractory material and preparation method thereof
一种晶须增强轻量化铝碳质耐火材料及其制备方法
18.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021