Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a mullite brick with fiber toughening and a preparation method thereof. The mullite brick is prepared from the following raw materials in percentage by mass: 25%-35% of fusedmullite with a particle size of 3-5 mm; 10%-25% of sintered mullite with a particle size of 1-3 mm; 10%-20% of andalusite with a particle size of 1-3 mm; 5%-15% of sintered mullite with the particle size of 0-1 mm, 10%-20% of sintered mullite powder with the particle size of -200 meshes, 5%-10% of white corundum with the particle size of + 350 to -250 meshes, 4%-6% of aluminum oxide micro powder with the particle size of 5-6 microns and 4%-6% of ball clay with the particle size of -200 meshes. According to the preparation method, a mullite sol precursor which accounts for 4-6% of the total weight of the raw materials is added, the mullite brick provided by the invention has very high impact resistance, can effectively improve the thermal shock resistance of a fired brick, and prevents thefired brick from cracking and peeling off, thereby prolonging the service time and prolonging the service life of a lining.
本发明涉及一种具有纤维增韧的莫来石砖及其制备方法，莫来石砖原料组成和质量百分数如下：粒度为3～5mm的电熔莫来石25％～35％，粒度为1～3mm的烧结莫来石10％～25％，粒度为1～3mm的红柱石10％～20％，粒度为0～1mm的烧结莫来石5％～15％，粒度为‑200目的烧结莫来石粉10％～20％，粒度为+350～‑250目的白刚玉5％～10％，粒度为5～6μm的氧化铝微粉4％～6％，粒度为‑200目的球粘土4％～6％；按照上述原料总重量的4％～6％加入莫来溶胶前驱体。本发明所述莫来石砖具有很高的耐冲击性，可以有效提高烧成砖的抗热震性能，防止其开裂和剥落，从而延长服役时间，提高内衬使用寿命。
The invention relates to a mullite brick with fiber toughening and a preparation method thereof. The mullite brick is prepared from the following raw materials in percentage by mass: 25%-35% of fusedmullite with a particle size of 3-5 mm; 10%-25% of sintered mullite with a particle size of 1-3 mm; 10%-20% of andalusite with a particle size of 1-3 mm; 5%-15% of sintered mullite with the particle size of 0-1 mm, 10%-20% of sintered mullite powder with the particle size of -200 meshes, 5%-10% of white corundum with the particle size of + 350 to -250 meshes, 4%-6% of aluminum oxide micro powder with the particle size of 5-6 microns and 4%-6% of ball clay with the particle size of -200 meshes. According to the preparation method, a mullite sol precursor which accounts for 4-6% of the total weight of the raw materials is added, the mullite brick provided by the invention has very high impact resistance, can effectively improve the thermal shock resistance of a fired brick, and prevents thefired brick from cracking and peeling off, thereby prolonging the service time and prolonging the service life of a lining.
本发明涉及一种具有纤维增韧的莫来石砖及其制备方法，莫来石砖原料组成和质量百分数如下：粒度为3～5mm的电熔莫来石25％～35％，粒度为1～3mm的烧结莫来石10％～25％，粒度为1～3mm的红柱石10％～20％，粒度为0～1mm的烧结莫来石5％～15％，粒度为‑200目的烧结莫来石粉10％～20％，粒度为+350～‑250目的白刚玉5％～10％，粒度为5～6μm的氧化铝微粉4％～6％，粒度为‑200目的球粘土4％～6％；按照上述原料总重量的4％～6％加入莫来溶胶前驱体。本发明所述莫来石砖具有很高的耐冲击性，可以有效提高烧成砖的抗热震性能，防止其开裂和剥落，从而延长服役时间，提高内衬使用寿命。
Mullite insulating refractory brick and preparation method thereof
| Europäisches Patentamt | 2020
Dry-quenched mullite brick and preparation method thereof
| Europäisches Patentamt | 2015