论文部分内容阅读
首先是防止RH处理过程中从真空罐渣壳中以及真空室钢渣结瘤引起的增碳,特别是钢包用碳化稻壳保温的情况下,这种现象尤为突出。其次是连铸过程中碳的控制。在浇注含碳量小于0.03%的超低碳钢种时,最突出的问题是保护渣对钢水的增碳。目前国内增碳水平一般在0.001%左右,而国外先进厂家可将其控制在0.0003%范围内。为了避免或减少超低碳钢钢水
The first is to prevent the carbonization caused by slag nodules from the vacuum tank and the nodules of the steel slag in the vacuum chamber during the RH treatment, especially when the ladle is kept warm with carbonized rice husk. Followed by the continuous casting process carbon control. Casting carbon content of less than 0.03% of the ultra-low carbon steel, the most prominent issue is the mold flux on the molten steel carbon. At present, the domestic carbon level is generally around 0.001%, while foreign advanced manufacturers can control it within the range of 0.0003%. In order to avoid or reduce ultra-low carbon steel molten steel