高强度硼钢淬火界面热交换系数的实验与模拟
发布时间：2019-04-08 12:20
【摘要】：通过测量硼钢B1500HS淬火过程中板料和模具的温度变化曲线,结合有限元分析及反传热模型获得淬火过程中板料与模具间的界面热交换系数(IHTC)与温度的关系。结果表明:板料温度从770℃下降到200℃,IHTC的变化范围在1970~3960 W/(m2·K)之间。随着板料温度的降低,IHTC随之降低,但由于材料在410℃时发生奥氏体向马氏体的转变,相变潜热的释放导致IHTC不连续的现象发生。与以距离模具形面下方1mm处作为淬火介质的环境温度相比,以模具形面处作为淬火介质的环境温度得到的IHTC分布规律同前者基本一致,但IHTC的数值较高。
[Abstract]:By measuring the temperature change curve of sheet metal and die during B1500HS quenching of boron steel, the relationship between interface heat exchange coefficient (IHTC) and temperature of sheet metal and die during quenching was obtained by combining finite element analysis and reverse heat transfer model. The results show that the temperature of sheet metal decreases from 770 鈩，
本文编号：2454567
[Abstract]:By measuring the temperature change curve of sheet metal and die during B1500HS quenching of boron steel, the relationship between interface heat exchange coefficient (IHTC) and temperature of sheet metal and die during quenching was obtained by combining finite element analysis and reverse heat transfer model. The results show that the temperature of sheet metal decreases from 770 鈩，
本文编号：2454567
本文链接：https://www.wllwen.com/kejilunwen/jinshugongy/2454567.html
教材专著
