鞍钢高效率、低成本洁净钢生产平台建立.pdfVIP

鞍钢高效率、低成本洁净钢生产平台建立 ——反应诱发微小异相净化钢水技术开发 1, 2 1 1 1 1 1 2 李 镇 王晓峰 费 鹏 林 洋 孙 群 辛国强 姜茂发 （1. 鞍钢股份有限公司第二炼钢厂, 鞍山 114021 ； 2.东北大学材料与冶金学院, 沈阳 110016 ） 摘 要 高纯净度钢的生产是 21 世纪钢铁企业面临的重大课题。提高钢产品质量、生产纯净钢的关键在于控制夹 杂物。为此本文提出一种全新的夹杂物控制技术——反应诱发微小异相去除钢液中细小夹杂物的工艺，设计了一种 具有该种功能的复合球体，并开展了工业现场试验研究。试验结果表明反应诱发微小异相去除细小夹杂物工艺是一 种成本低、效率高、简便易行的夹杂物控制技术，它可以显著降低钢液中非金属夹杂物数量。与传统工艺相比，采 用该技术对钢液进行处理后，铸坯中氧化物夹杂的数量明显减少，尺寸变小，铸坯的平均 T[O]最低可达 6ppm，吨 钢成本可以降低 5～12 元。 关键词 复合球体 小气泡 渣洗 夹杂物去除 爆炸 Ansteel High-Efficiency and Low-Cost Clean Steel Manufacturing Platform Establishing——Novel Concept of Cleansing the Liquid Steel by the Fine in-situ Phase Due to the Composite Ball Explosion Reaction in RH Ladle Li Zhen1,2 Wang Xiaofeng1 Fei Peng1 Lin Yang1 Sun Qun1 Xin Guoqiang1 Jiang Maofa2 (1. 2nd Steelmaking Plant,Ansteel Corp.Ltd., Anshan, 114021; 2. Maerial and Metallurgy School, Northeastern University, Shenyang, 110016) Abstract The production of high purity steel is a major task for the iron and steel enterprises in the 21st century. Decreasing the total oxygen content and the inclusion removal is the key technique to produce the high purity IF steel. In the present investigation, a novel fine inclusion removal technology due to the dispersed in-situ phase induced by the composite ball explosive reaction was put forward. A composite ball with this function has been designed and prepared using a laboratory model batch type balling disc (at 12 rpm) and the composite ball has been fed at the end of RH refining. The results indicate that feeding composite ball in