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Alumina-based refractory castable for molten steel treatment spray gun
The invention relates to an alumina-based refractory castable for a molten steel treatment spray gun, which comprises the following components in percentage by weight: 40-60% of secondary high-alumina bauxite, 25-45% of fused corundum, 3-8% of kyanite, 3-8% of alumina micro powder, 0-3% of pure calcium aluminate cement, 1-5% of silica powder, 2-7% of rho alumina or aluminum gel, 1-5% of steel fiber and 0.1-0.4% of water reducing agent. The thermal shock resistance of the castable is remarkably improved, so that the service life of a spray gun is prolonged, and the cost of the castable is greatly reduced.
本发明涉及一种用于钢水处理喷枪的矾土基耐火浇注料，以重量百分数计，所述的浇注料包括：二级高铝矾土：40～60％，电熔刚玉：25～45％，蓝晶石：3～8％，氧化铝微粉：3～8％，纯铝酸钙水泥：0～3％，硅微粉：1～5％，ρ氧化铝或铝凝胶：2～7％，钢纤维：1～5％，减水剂：0.1～0.4％。本发明显著提高了浇注料的热震稳定性，从而提高了喷枪的使用寿命，大幅降低了浇注料的成本。
Alumina-based refractory castable for molten steel treatment spray gun
The invention relates to an alumina-based refractory castable for a molten steel treatment spray gun, which comprises the following components in percentage by weight: 40-60% of secondary high-alumina bauxite, 25-45% of fused corundum, 3-8% of kyanite, 3-8% of alumina micro powder, 0-3% of pure calcium aluminate cement, 1-5% of silica powder, 2-7% of rho alumina or aluminum gel, 1-5% of steel fiber and 0.1-0.4% of water reducing agent. The thermal shock resistance of the castable is remarkably improved, so that the service life of a spray gun is prolonged, and the cost of the castable is greatly reduced.
本发明涉及一种用于钢水处理喷枪的矾土基耐火浇注料，以重量百分数计，所述的浇注料包括：二级高铝矾土：40～60％，电熔刚玉：25～45％，蓝晶石：3～8％，氧化铝微粉：3～8％，纯铝酸钙水泥：0～3％，硅微粉：1～5％，ρ氧化铝或铝凝胶：2～7％，钢纤维：1～5％，减水剂：0.1～0.4％。本发明显著提高了浇注料的热震稳定性，从而提高了喷枪的使用寿命，大幅降低了浇注料的成本。
Alumina-based refractory castable for molten steel treatment spray gun
用于钢水处理喷枪的矾土基耐火浇注料
GAO RENXIANG (author) / XUE NA (author) / LAN ZHENHUA (author) / WANG LIWEI (author)
2022-04-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
CASTABLE REFRACTORY AND MOLTEN STEEL LADLE USING THE SAME
| European Patent Office | 2022