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Continuous casting three-major piece for tundish high-performance steel and preparation method of continuous casting three-major piece
The invention discloses continuous casting three major parts for tundish high-performance steel, which comprise a long nozzle, a stopper rod and a submerged nozzle, and are prepared by the following steps of: melting fused magnesium aluminate spinel (MgO.Al2O3) in an electric arc furnace at a high temperature of 2000 DEG C or above by taking alumina and high-purity caustic-burned magnesia as raw materials, cooling and crushing, the refractory material is a novel high-purity synthetic refractory raw material with low impurity content. The electric smelting magnesium aluminate spinel is large in volume density, high in melting point, capable of keeping good chemical stability in a high-oxygen or reducing atmosphere and high in molten steel and slag erosion resistance under the action of high temperature. In addition, the fused magnesium aluminate spinel is firm in structure, small in thermal expansion coefficient and isotropic. The invention aims to provide the continuous casting three major parts for the tundish high-performance steel and the preparation method of the continuous casting three major parts, which meet the requirements of high-performance steel casting, long service life, impurity reduction, production cost reduction and refractory material consumption per ton of steel.
本发明公开了一种中包高性能钢用连铸三大件，包括长水口、塞棒和浸入式水口，使用电熔镁铝尖晶石(MgO.Al2O3)以氧化铝合高纯轻烧镁为原料，电熔镁铝尖晶石在电弧炉中2000℃以上高温熔融后，经冷却破碎得到，是一种新型高纯的杂质含量低的合成耐火原料。电熔镁铝尖晶石的体积密度大、熔点高，能够高氧或还原气氛中保持较好的化学稳定性，在高温作用下抗钢水和熔渣的侵蚀能力强。另外电熔镁铝尖晶石结构牢固，热膨胀系数小，且各向同性。本发明的目的在于提供了一种达到满足高性能钢浇铸、使用长寿命、降低杂质、降低生产成本、降低吨钢耐材消耗的中包高性能钢用连铸三大件及其制备方法。
Continuous casting three-major piece for tundish high-performance steel and preparation method of continuous casting three-major piece
The invention discloses continuous casting three major parts for tundish high-performance steel, which comprise a long nozzle, a stopper rod and a submerged nozzle, and are prepared by the following steps of: melting fused magnesium aluminate spinel (MgO.Al2O3) in an electric arc furnace at a high temperature of 2000 DEG C or above by taking alumina and high-purity caustic-burned magnesia as raw materials, cooling and crushing, the refractory material is a novel high-purity synthetic refractory raw material with low impurity content. The electric smelting magnesium aluminate spinel is large in volume density, high in melting point, capable of keeping good chemical stability in a high-oxygen or reducing atmosphere and high in molten steel and slag erosion resistance under the action of high temperature. In addition, the fused magnesium aluminate spinel is firm in structure, small in thermal expansion coefficient and isotropic. The invention aims to provide the continuous casting three major parts for the tundish high-performance steel and the preparation method of the continuous casting three major parts, which meet the requirements of high-performance steel casting, long service life, impurity reduction, production cost reduction and refractory material consumption per ton of steel.
本发明公开了一种中包高性能钢用连铸三大件，包括长水口、塞棒和浸入式水口，使用电熔镁铝尖晶石(MgO.Al2O3)以氧化铝合高纯轻烧镁为原料，电熔镁铝尖晶石在电弧炉中2000℃以上高温熔融后，经冷却破碎得到，是一种新型高纯的杂质含量低的合成耐火原料。电熔镁铝尖晶石的体积密度大、熔点高，能够高氧或还原气氛中保持较好的化学稳定性，在高温作用下抗钢水和熔渣的侵蚀能力强。另外电熔镁铝尖晶石结构牢固，热膨胀系数小，且各向同性。本发明的目的在于提供了一种达到满足高性能钢浇铸、使用长寿命、降低杂质、降低生产成本、降低吨钢耐材消耗的中包高性能钢用连铸三大件及其制备方法。
Continuous casting three-major piece for tundish high-performance steel and preparation method of continuous casting three-major piece
中包高性能钢用连铸三大件及其制备方法
HANG WENMING (author) / WANG YUANLIN (author) / ZHANG YULIU (author)
2022-04-08
Patent
Electronic Resource
Chinese
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