型钢轧辊水冷过程模拟仿真分析

Finite element and simulation analysis of the cooling process of section steel roller

为优化H型钢轧制工艺参数,对H型钢轧辊温度场进行模拟仿真分析。通过对轧辊不同断面进行温度场、冷却角度、冷却强度的分析结果表明,由于轧辊表面吸收的热量不同,各部位温度分布不同,辊面与H型钢腹板接触部位温度最低,且分布均匀,沿R角方向温度逐渐升高,最高点出现在R角部位;相同冷却角度下,辊面温度冷却达到一定要求时,轧辊R角和辊端面温度仍保持较高温度。要保证在相同冷却强度下轧辊表面温度均匀分布,需对R角和轧辊端面扩大冷却范围。

The analog simulation analysis of the temperature field was carried out for optimizing the cooling process parameters of H section roller. According to the analysis of different cross section temperature fields, different cooling angles and cooling intensity, the roller surface absorbs different amounts of heat as it meets rolled piece. The temperature on the roller surface that is in contact with the web is the lowest, distributes evenly, and rises gradually near the R angle. The temperature peak appears at the R angle spot. The temperature on the roller R angle and side surface remains comparatively high with the same cooling angle when the roller surface temperature meets the requirements. It is a must to increase the cooling area of the roller R angle and side surface so as to guarantee the even distribution of roller surface temperature under the same cooling intensity.