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Castable special for heat preservation steel ladle cover and ladle cover manufacturing method
The invention discloses a castable special for a heat preservation steel ladle cover and a ladle cover manufacturing method, and the castable is prepared from 70% of first-grade high bauxite clinker (15% of granular materials with the granularity of 10-6 mm, 25% of granular materials with the granularity of 6-3 mm, 15% of granular materials with the granularity of 3-1 mm and 15% of granular materials with the granularity of 1-0 mm), 5% of spinel powder, 16% of first-grade aluminum powder, 2% of electric smelting magnesium powder, 0.5% of metal aluminum powder, 0.4% of Na2HCO3, 1% of azoamide, 3% of Secar 71 cement, 2% of sodium metasilicate nonahydrate, and 0.1% of explosion-proof fiber. When in use, the raw materials are accurately weighed and uniformly premixed, water accounting for 7% of the total weight of the mixture is added, the mixture is stirred to form a castable, the castable is poured into a ladle cover model for prefabrication forming, and a ladle cover finished product is obtained after normal-temperature maintenance is performed for 24 hours. After casting molding, baking is not needed, moisture can be rapidly removed through natural drying, and the ladle cover is firmer, free of cracks and peeling, resistant to high-temperature invasion and thermal shock and capable of adapting to high-temperature changes of steel ladles; and the service life of the ladle cover is twice that of a common ladle cover, and material cost is saved.
本发明公开了一种保温钢包包盖专用浇注料以及包盖制造方法，浇注料是由一级高铝矾土熟料70%（粒度10‑6mm的颗粒料15%，粒度6‑3mm的颗粒料25%，粒度3‑1mm的颗粒料15%，粒度1‑0mm的颗粒料15%），尖晶石粉5%，一级铝粉16%，电熔镁粉2%，金属铝粉0.5%，Na2HCO3 0.4%，偶氮酰胺1%，塞卡71水泥3%，九水偏硅酸钠2%，防爆纤维0.1%配制而成。使用时，将上述原料准确称量并预混均匀后，按混合料总重的7%加水搅拌成浇注料，浇注在包盖模型中预制成型，经常温养护24小时后，即得到包盖成品。本发明浇注成型后无需烘烤，自然干燥即可快速排除水分，包盖遇高温更坚固，不裂纹、不剥落，耐高温侵袭、抗热震，可适应钢包高温变化；使用寿命是普通包盖的2倍，节约了材料成本。
Castable special for heat preservation steel ladle cover and ladle cover manufacturing method
The invention discloses a castable special for a heat preservation steel ladle cover and a ladle cover manufacturing method, and the castable is prepared from 70% of first-grade high bauxite clinker (15% of granular materials with the granularity of 10-6 mm, 25% of granular materials with the granularity of 6-3 mm, 15% of granular materials with the granularity of 3-1 mm and 15% of granular materials with the granularity of 1-0 mm), 5% of spinel powder, 16% of first-grade aluminum powder, 2% of electric smelting magnesium powder, 0.5% of metal aluminum powder, 0.4% of Na2HCO3, 1% of azoamide, 3% of Secar 71 cement, 2% of sodium metasilicate nonahydrate, and 0.1% of explosion-proof fiber. When in use, the raw materials are accurately weighed and uniformly premixed, water accounting for 7% of the total weight of the mixture is added, the mixture is stirred to form a castable, the castable is poured into a ladle cover model for prefabrication forming, and a ladle cover finished product is obtained after normal-temperature maintenance is performed for 24 hours. After casting molding, baking is not needed, moisture can be rapidly removed through natural drying, and the ladle cover is firmer, free of cracks and peeling, resistant to high-temperature invasion and thermal shock and capable of adapting to high-temperature changes of steel ladles; and the service life of the ladle cover is twice that of a common ladle cover, and material cost is saved.
本发明公开了一种保温钢包包盖专用浇注料以及包盖制造方法，浇注料是由一级高铝矾土熟料70%（粒度10‑6mm的颗粒料15%，粒度6‑3mm的颗粒料25%，粒度3‑1mm的颗粒料15%，粒度1‑0mm的颗粒料15%），尖晶石粉5%，一级铝粉16%，电熔镁粉2%，金属铝粉0.5%，Na2HCO3 0.4%，偶氮酰胺1%，塞卡71水泥3%，九水偏硅酸钠2%，防爆纤维0.1%配制而成。使用时，将上述原料准确称量并预混均匀后，按混合料总重的7%加水搅拌成浇注料，浇注在包盖模型中预制成型，经常温养护24小时后，即得到包盖成品。本发明浇注成型后无需烘烤，自然干燥即可快速排除水分，包盖遇高温更坚固，不裂纹、不剥落，耐高温侵袭、抗热震，可适应钢包高温变化；使用寿命是普通包盖的2倍，节约了材料成本。
Castable special for heat preservation steel ladle cover and ladle cover manufacturing method
保温钢包包盖专用浇注料以及包盖制造方法
HOU HUIFENG (author) / HOU ZHENDONG (author) / LIU DAQUAN (author)
2021-06-04
Patent
Electronic Resource
Chinese
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