A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SiC whisker reinforced magnesium aluminate spinel breathable refractory material and preparation method thereof
The invention relates to a SiC whisker reinforced magnesium aluminate spinel breathable refractory material and a preparation method thereof. The preparation method includes: preparing 13-19 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 4.5 +/-0.3 mm, 32-41 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 1.8 +/- 0.3 mm and 19-25 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 0.7 +/-0.2 mm as aggregates, and 2-4 wt% of magnesia fine powder, 3-6 wt% of corundum fine powder, 2-5 wt% of monatomic silicon powder and 10-22 wt% of spinel fine powder as a matrix; placing aggregate in a stirrer, stirring, adding sulfurous acid paper pulp waste liquid accounting for 3-7wt% of the sum of the aggregate and the matrix, stirring the components, adding the matrix, stirring and forming the components, drying the formed mixture, preserving heat at 1300-1500 DEG C under a carbon burying condition, and cooling the mixture to prepare the SiC whisker reinforced magnesium aluminate spinel breathable refractory material. The refractory material has the characteristics of high resource utilization rate and controllable microstructure, and is uniform and stable in ventilation, high in strength and excellent in thermal shock resistance.
本发明涉及一种SiC晶须增强的镁铝尖晶石透气耐火材料及其制备方法。其技术方案是：以13～19wt％、32～41wt％和19～25wt％的粒径依次为4.5±0.3mm、1.8±0.3mm和0.7±0.2mm的改性球形多孔镁铝尖晶石陶瓷颗粒为骨料，以2～4wt％的镁砂细粉、3～6wt％的刚玉细粉、2～5wt％的单质硅粉和10～22wt％的尖晶石细粉为基质。先将骨料置于搅拌器内，搅拌，再外加骨料和基质之和3～7wt％的亚硫酸纸浆废液，搅拌，再加入基质，搅拌，成型，干燥，在埋碳条件下，于1300～1500℃保温，冷却，制得SiC晶须增强的镁铝尖晶石透气耐火材料。本发明具有资源利用率高和显微结构可控的特点，所制制品透气均匀稳定、强度高和热震稳定性能优异。
SiC whisker reinforced magnesium aluminate spinel breathable refractory material and preparation method thereof
The invention relates to a SiC whisker reinforced magnesium aluminate spinel breathable refractory material and a preparation method thereof. The preparation method includes: preparing 13-19 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 4.5 +/-0.3 mm, 32-41 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 1.8 +/- 0.3 mm and 19-25 wt% of modified spherical porous magnesium aluminate spinel ceramic particles with the particle size being 0.7 +/-0.2 mm as aggregates, and 2-4 wt% of magnesia fine powder, 3-6 wt% of corundum fine powder, 2-5 wt% of monatomic silicon powder and 10-22 wt% of spinel fine powder as a matrix; placing aggregate in a stirrer, stirring, adding sulfurous acid paper pulp waste liquid accounting for 3-7wt% of the sum of the aggregate and the matrix, stirring the components, adding the matrix, stirring and forming the components, drying the formed mixture, preserving heat at 1300-1500 DEG C under a carbon burying condition, and cooling the mixture to prepare the SiC whisker reinforced magnesium aluminate spinel breathable refractory material. The refractory material has the characteristics of high resource utilization rate and controllable microstructure, and is uniform and stable in ventilation, high in strength and excellent in thermal shock resistance.
本发明涉及一种SiC晶须增强的镁铝尖晶石透气耐火材料及其制备方法。其技术方案是：以13～19wt％、32～41wt％和19～25wt％的粒径依次为4.5±0.3mm、1.8±0.3mm和0.7±0.2mm的改性球形多孔镁铝尖晶石陶瓷颗粒为骨料，以2～4wt％的镁砂细粉、3～6wt％的刚玉细粉、2～5wt％的单质硅粉和10～22wt％的尖晶石细粉为基质。先将骨料置于搅拌器内，搅拌，再外加骨料和基质之和3～7wt％的亚硫酸纸浆废液，搅拌，再加入基质，搅拌，成型，干燥，在埋碳条件下，于1300～1500℃保温，冷却，制得SiC晶须增强的镁铝尖晶石透气耐火材料。本发明具有资源利用率高和显微结构可控的特点，所制制品透气均匀稳定、强度高和热震稳定性能优异。
SiC whisker reinforced magnesium aluminate spinel breathable refractory material and preparation method thereof
一种SiC晶须增强的镁铝尖晶石透气耐火材料及其制备方法
YAN WEN (author) / WU HAN (author) / CHEN ZHE (author) / LIANG XIONG (author) / LI YAWEI (author) / LI YUANBING (author) / LI NAN (author)
2021-05-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Magnesium aluminate spinel refractory material and preparation method thereof
| European Patent Office | 2021
Magnesium aluminate spinel refractory material and preparation method thereof
| European Patent Office | 2020
Lightweight periclase-magnesium aluminate spinel refractory material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024