%0 Journal Article
%T 低碳钢LF炉硅还原影响因素分析<br>Analysis of the Influence Factors of LF Furnace Silicon Reversion in Low Carbon Steel Treatment
%A 罗开敏
%A 靳随城
%A 何志斌
%J Metallurgical Engineering
%P 240-245
%@ 2373-1486
%D 2019
%I Hans Publishing
%R 10.12677/MEng.2019.64033
%X <div style=\"text-align:justify;\">
	<span style=\"line-height:1.5;font-size:14px;\">本文结合350 t LF炉低碳钢冶炼过程数据，分析了LF炉过程参数控制对低碳铝镇静钢回硅的影响。结果表明：LF炉处理结束后，硅的还原反应远没有达到平衡，渣中(SiO<sub>2</sub>)仍可被还原；随着LF炉初始温度的增加，回硅量逐渐降低；随着铝含量的降低，钢水回硅量逐渐减少，当过程铝含量低于0.03%时，有利于将硅含量控制到0.03%以下；采用铝铁脱氧，使炉渣保持一定的弱氧化性，可以保证脱硫效果的同时，有效降低硅的还原。通过将LF炉初始温度控制在1600℃ ± 10℃，过程铝含量控制到0.02%~0.04%，使用铝铁代替铝渣脱氧，同时缩短LF炉处理时间，可以将低碳铝镇静钢硅含量稳定控制到0.03%以下。<br />
Based on 350 t LF furnace melting process data, this paper has analyzed the effect of process pa-rameters control of LF furnace on low carbon steel silicon reduction. The results showed as fellows. At the end-point of LF treatment, reaction of silicon is far from balance; the (SiO<sub>2</sub>) of slag still can be reduction. Silicon content of liquid steel reduces with the rising of initial temperature of LF furnace and silicon content of liquid steel reduces with the reducing of aluminum content. When the aluminum content is less than 0.03%, it is favorable to realize silicon content less than 0.03%. Adopting aluminum iron deoxidation and keeping slag a little reduction atmosphere is favorable to reducing silicon reduction and also meeting the de-sulf request of slag. When initial temperature controlled at 1600？C ± 10？C, aluminum content controlled between 0.02% to 0.04%, adopting deoxidation with Fe-AL alloy instead of aluminum slag and shortening LF treatment time, it can realize silicon content less than 0.03% stablely.</span> 
</div>
%K LF炉，低碳铝镇静钢，硅还原<br>LF Furnace
%K Low Carbon Steel
%K Silicon Reversion
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=33451