论文部分内容阅读
以迁钢RH炉为背景,通过RH真空处理脱碳数学模型研究了不同真空压降模式对整体碳含量的影响。模型计算结果表明,真空度提高越快,脱碳反应的脱碳速率越大,所得到的终点碳含量也越低,真空度达到5kPa的时间提前3min,终点碳的质量分数可降低20×10-6左右;真空压降平台出现前后,整体脱碳速率分别出现峰值的变化;消除真空压降平台后增加了2个峰值之间的脱碳速率,达到了在较短时间内获得更低碳含量的目的。
Taking the RH furnace of Qiangang Steel as a background, the effect of different vacuum pressure drop modes on the overall carbon content was studied by RH vacuum treatment decarburization mathematical model. The model calculation results show that the faster the degree of vacuum increases, the higher the decarburization rate of decarburization reaction is, the lower the carbon content of the end point obtained is. The vacuum reaches 5kPa for 3min ahead of time, and the carbon content of end point can be reduced by 20 × 10 -6, respectively. Before and after the vacuum pressure drop platform appeared, the overall decarburization rate showed peak changes respectively. After removing the vacuum pressure drop platform, the decarburization rate was increased between the two peaks, reaching a lower carbon in a shorter time The purpose of the content.