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为了控制热连轧带钢中易变形硫化物夹杂的形态及分布,改善铸坯质量,提高钢材性能,武钢同包冶所从1980年11月开始,在武钢二炼钢10.3m弧型板坯连铸机上进行了向结晶器内喂入稀土丝的研究。通过41炉(约2000余t钢)的工业性生产试验,对铸坯和轧材取对比试样,经宏观和微观检验,对稀土元素在铸坯中的分布及效率,稀土在锰钢中的最佳用量以及稀土在钢中的作用规律等作了细致的鉴定分析。本文重点介绍稀土对质量和性能的影响。
In order to control the morphology and distribution of the easily deformed sulfide inclusions in the hot strip, improve the quality of the slab and improve the performance of the steel, Wusigongbacai Institute began in November 1980, Continuous casting machine was fed to the mold of rare earth wire research. Through 41 industrial furnaces (about 2000 tons of steel) industrial production test, the slab and rolled material to take comparative samples, the macro and micro test, the distribution of rare earth elements in the slab and the efficiency of rare earth in manganese steel The best dosage and the law of the role of rare earth in the steel made a detailed identification analysis. This article focuses on the impact of rare earth on the quality and performance.