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Special stuffing sand for high-manganese high-aluminum steel and using method
The invention belongs to the field of ferrous metallurgy, and discloses special stuffing sand for high-manganese high-aluminum steel and a using method. An upper layer of the special stuffing sand isan aluminum oxide particle layer, and a lower layer is a chromium stuffing sand layer. Compared with chromium stuffing sand, the reactivity of aluminum oxide particles and the high-manganese high-aluminum steel is relatively weak, and a proper sintering layer is formed, so that the steel ladle automatic casting rate of the high-manganese high-aluminum steel is improved, and then the production efficiency of the high-manganese high-aluminum steel is improved. The steel ladle automatic casting rate is improved, the number of inclusions brought into the steel in the oxygen burning process is reduced, and the quality of high-manganese high-aluminum steel products is improved. The cost of the aluminum oxide particles on the upper layer of the stuffing sand is 3-5 times that of the chromium stuffing sand on the lower layer, the thickness of the aluminum oxide particles used on the upper layer in the stuffing sand is only 3-7 cm, and the chromium stuffing sand is used on the lower layer to replace the aluminum oxide particles, so that the cost is greatly reduced. The risk of oxygen burning operation of a steel ladle is very high, and the probability that the steel ladle is not automatically cast is reduced by using the special stuffing sand for the high-manganese high-aluminum steel, so that the risk in the high-manganese steel production process is reduced.
本发明属于钢铁冶金领域，公开了一种高锰高铝钢专用引流砂及使用方法。该专用引流砂的上层为氧化铝颗粒层，下层为铬质引流砂层。与铬质引流砂相比，氧化铝颗粒与高锰高铝钢的反应性相对较弱，形成适度的烧结层，改善高锰高铝钢的钢包自动开浇率，进而提高高锰高铝钢的生产效率。钢包自动开浇率提升减少由于烧氧过程带入钢中夹杂物的数量，使高锰高铝钢产品的质量得到提高。该引流砂上层氧化铝颗粒的成本是下层铬质引流砂的3～5倍，本发明中上层使用的氧化铝颗粒厚度仅3～7cm，下层使用铬质引流砂代替氧化铝颗粒使成本大幅降低。钢包烧氧操作危险性很高，使用高锰高铝钢专用引流砂降低钢包不自动开浇的概率，从而降低高锰钢生产过程中的风险。
Special stuffing sand for high-manganese high-aluminum steel and using method
The invention belongs to the field of ferrous metallurgy, and discloses special stuffing sand for high-manganese high-aluminum steel and a using method. An upper layer of the special stuffing sand isan aluminum oxide particle layer, and a lower layer is a chromium stuffing sand layer. Compared with chromium stuffing sand, the reactivity of aluminum oxide particles and the high-manganese high-aluminum steel is relatively weak, and a proper sintering layer is formed, so that the steel ladle automatic casting rate of the high-manganese high-aluminum steel is improved, and then the production efficiency of the high-manganese high-aluminum steel is improved. The steel ladle automatic casting rate is improved, the number of inclusions brought into the steel in the oxygen burning process is reduced, and the quality of high-manganese high-aluminum steel products is improved. The cost of the aluminum oxide particles on the upper layer of the stuffing sand is 3-5 times that of the chromium stuffing sand on the lower layer, the thickness of the aluminum oxide particles used on the upper layer in the stuffing sand is only 3-7 cm, and the chromium stuffing sand is used on the lower layer to replace the aluminum oxide particles, so that the cost is greatly reduced. The risk of oxygen burning operation of a steel ladle is very high, and the probability that the steel ladle is not automatically cast is reduced by using the special stuffing sand for the high-manganese high-aluminum steel, so that the risk in the high-manganese steel production process is reduced.
本发明属于钢铁冶金领域，公开了一种高锰高铝钢专用引流砂及使用方法。该专用引流砂的上层为氧化铝颗粒层，下层为铬质引流砂层。与铬质引流砂相比，氧化铝颗粒与高锰高铝钢的反应性相对较弱，形成适度的烧结层，改善高锰高铝钢的钢包自动开浇率，进而提高高锰高铝钢的生产效率。钢包自动开浇率提升减少由于烧氧过程带入钢中夹杂物的数量，使高锰高铝钢产品的质量得到提高。该引流砂上层氧化铝颗粒的成本是下层铬质引流砂的3～5倍，本发明中上层使用的氧化铝颗粒厚度仅3～7cm，下层使用铬质引流砂代替氧化铝颗粒使成本大幅降低。钢包烧氧操作危险性很高，使用高锰高铝钢专用引流砂降低钢包不自动开浇的概率，从而降低高锰钢生产过程中的风险。
Special stuffing sand for high-manganese high-aluminum steel and using method
一种高锰高铝钢专用引流砂及使用方法
DENG ZHIYIN (author) / SONG GUODONG (author) / LIU ZONGHUI (author) / YANG BORAN (author) / ZHU MIAOYONG (author)
2020-11-10
Patent
Electronic Resource
Chinese
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