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Slag-corrosion-resistant steel ladle castable and preparation method thereof
The invention relates to the technical field of steel ladle castable, and particularly discloses slag-corrosion-resistant steel ladle castable which comprises a green body and a protective layer wrapping the surface of the green body. The green body is prepared from the following raw materials in parts by mass: 40 to 70 parts of corundum aggregate, 10 to 20 parts of corundum fine powder, 5 to 15 parts of alumina-magnesia spinel, 5 to 15 parts of activated alumina micro powder, 1 to 5 parts of polystyrene microspheres, 1 to 3 parts of aluminate cement and 1 to 2 parts of polycarboxylic acid water reducing agent; the protective layer is prepared from the following raw materials in parts by mass: 5 to 15 parts of activated aluminum oxide micro powder, 1 to 3 parts of chromic oxide, 1 to 2 parts of titanium dioxide, 1 to 2 parts of bismuth germanate powder, 1 to 2 parts of pretreated nickel ferrite micro powder and 1 to 3 parts of polyvinyl alcohol; the pretreated nickel ferrite micro powder is formed by coating the outer side of nickel ferrite micro powder with rare earth zirconate. The obtained steel ladle castable has the advantages of high strength, excellent slag corrosion resistance and excellent structural stability, and can meet the requirement of long-time use of a steel ladle lining structure in a high-temperature molten steel corrosion environment.
本发明涉及钢包浇注料技术领域，具体公开了一种抗渣侵蚀钢包浇注料，包括：坯体和包覆在坯体表面的保护层；坯体原料按质量份包括：刚玉骨料40‑70份，刚玉细粉10‑20份，铝镁尖晶石5‑15份，活性氧化铝微粉5‑15份，聚苯乙烯微球1‑5份，铝酸盐水泥1‑3份，聚羧酸减水剂1‑2份；保护层原料按质量份包括：活性氧化铝微粉5‑15份，三氧化二铬1‑3份，二氧化钛1‑2份，锗酸铋粉1‑2份，预处理镍铁氧体微粉1‑2份，聚乙烯醇1‑3份；预处理镍铁氧体微粉为镍铁氧体微粉外侧包覆有稀土锆酸盐。所得钢包浇注料具有高强度、优越的抗渣侵蚀性能，结构稳定性优异，可满足钢包内衬结构在高温钢液侵蚀环境下较长时间的使用。
Slag-corrosion-resistant steel ladle castable and preparation method thereof
The invention relates to the technical field of steel ladle castable, and particularly discloses slag-corrosion-resistant steel ladle castable which comprises a green body and a protective layer wrapping the surface of the green body. The green body is prepared from the following raw materials in parts by mass: 40 to 70 parts of corundum aggregate, 10 to 20 parts of corundum fine powder, 5 to 15 parts of alumina-magnesia spinel, 5 to 15 parts of activated alumina micro powder, 1 to 5 parts of polystyrene microspheres, 1 to 3 parts of aluminate cement and 1 to 2 parts of polycarboxylic acid water reducing agent; the protective layer is prepared from the following raw materials in parts by mass: 5 to 15 parts of activated aluminum oxide micro powder, 1 to 3 parts of chromic oxide, 1 to 2 parts of titanium dioxide, 1 to 2 parts of bismuth germanate powder, 1 to 2 parts of pretreated nickel ferrite micro powder and 1 to 3 parts of polyvinyl alcohol; the pretreated nickel ferrite micro powder is formed by coating the outer side of nickel ferrite micro powder with rare earth zirconate. The obtained steel ladle castable has the advantages of high strength, excellent slag corrosion resistance and excellent structural stability, and can meet the requirement of long-time use of a steel ladle lining structure in a high-temperature molten steel corrosion environment.
本发明涉及钢包浇注料技术领域，具体公开了一种抗渣侵蚀钢包浇注料，包括：坯体和包覆在坯体表面的保护层；坯体原料按质量份包括：刚玉骨料40‑70份，刚玉细粉10‑20份，铝镁尖晶石5‑15份，活性氧化铝微粉5‑15份，聚苯乙烯微球1‑5份，铝酸盐水泥1‑3份，聚羧酸减水剂1‑2份；保护层原料按质量份包括：活性氧化铝微粉5‑15份，三氧化二铬1‑3份，二氧化钛1‑2份，锗酸铋粉1‑2份，预处理镍铁氧体微粉1‑2份，聚乙烯醇1‑3份；预处理镍铁氧体微粉为镍铁氧体微粉外侧包覆有稀土锆酸盐。所得钢包浇注料具有高强度、优越的抗渣侵蚀性能，结构稳定性优异，可满足钢包内衬结构在高温钢液侵蚀环境下较长时间的使用。
Slag-corrosion-resistant steel ladle castable and preparation method thereof
一种抗渣侵蚀钢包浇注料及其制备方法
ZHANG GUOHUA (author) / LIU LINGHAO (author) / ZHANG DEZHI (author) / ZHUANG HONGLIANG (author)
2024-08-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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