大规格钢筋余热处理过程有限元分析与计算

FEM analysis and calculation for heat treatment process with remained heat of large gauge ribbed bars

大规格余热处理钢筋在生产中存在着力学性能不稳定、弯曲合格率低等问题,关键是选择合理的轧后控制冷却工艺以获得钢筋所要求性能.本文采用有限元法对φ32mm大规格螺纹钢筋轧后余热处理过程的自回火温度场进行了分析,给出了截面温度场的分布,计算结果与实测值吻合较好.

Unstable mechanical properties and bend cracks widely exist in large gauge ribbed bars.The problem is how to select the controlling parameters of cooling after rolling.The self-tempering tempera ture field of32mm large gauge ribbed bars in controlled cooling process are sim ulated,and the tem perature distribution in the section was obtained.The calculated results show a good agreement with the actually measured values.