热轧工型钢控冷工艺及温度场研究

首先采用有限元分析软件Workbench对不同控冷工艺下热轧工型钢进行了温度场模拟,从中找到了较优的控冷工艺:初始温度900℃,空冷5s后水冷5s[水流密度不同,其中R角强冷为5.5L/(m2·s),腿部3.5L/(m2·s),其余的为4.5L/(m2·s)],最后空冷回火5s;然后,利用温度测量仪对温度场进行了验证,经过验证理论值和模拟值基本相符。此方案下的组织和性能得到了极大的改善,为进一步优化控冷工艺提供了理论基础。

Research on Controlled Cooling Process and Temperature Field of Hot-Rolled I-Beam

The finite element analysis software Workbench was applied to simulate the temperature field under different controlled cooling process of hot rolling I-beam and the aim is to find the better controlled cooling process: from the initial cooling temperature of 900??, firstly air-cooling 5s, then water-cooling 5s (water density is different, the R angle of strong cold at 5. 5L/(m2??s), the web at 3. 5L/(m2??s), the rest at 4. 5L/(m2??s), then the temperature field is verified using temperature measuring instrument, and the theoretical value and analog value is consistent. Mechanical properties are greatly improved, which provides the theoretical basis for the further optimization of controlled cooling process.