Study on Influence of BF Heat State on the HM Phosphorus Content in Northeast Special Steel
Facing high HM phosphorus content of BF in Dalian Base of Northeast Special Steel,a study is carried out with re-spect to the influence of BF heat state on HM phosphorus content.The study results indicate no correlation exists between the HM phosphorus content and the HM physical heat,and change of the HM physical heat during production will not cause vari-ation of HM phosphorus content;HM phosphorus content is not correlated with the HM chemical heat when the[Si]is 0.6％and[P]＜0.11％,but it is positively correlated with the HM chemical heat if[P]＞0.16％.It is suggested to control the furnace temperature so as to control the HM phosphorus content if high-phosphorus raw materials are used for ironmaking,and it its believed the lower the furnace temperature,the lower the HM phosphorus content.
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