耐候钢控碳研究

Study on Carbon Control of Weathering Steel

日钢耐候钢生产初期,连铸时曾多次发生漏钢事故,后证实为钢水成分中碳含量高导致包晶反应所致。为解决这一问题,对耐候钢炼钢过程的低碳控制问题进行探究。通过调整转炉工艺参数、控制LF精炼过程增碳,使耐候钢中包w(C)稳定控制在0.045%以内,在不增加成本的前提下保证了耐候钢的生产稳定性。

In the early stage of weathering steel production of Rizhao steel, breakout accidents occurred many times in continuous casting,which proved to be caused by peritectic reaction caused by high carbon content in molten steel. This paper explores the problem of low-carbon steelmaking process. By adjusting the converter process parameters and controlling the carburization in LF refining process, the ladle carbon of weathering steel is stably controlled within 0.045%, which ensures the stable production of weathering steel without increasing the cost.