摘要
对不同感应淬火工艺处理的连杆进行了其表层显微硬度测试 .应用有限元分析软件 AN-SYS/Thermal对高频感应淬火工艺过程中的温度场进行了模拟 .模拟分 3个部分 :感应加热部分、冷却液强制对流喷射淬火部分和空冷部分 .分析结果表明 ,连杆的淬硬层深度与速功比 (连杆移动速度与感应输出功率的比值 )成线性关系 .通过有限元分析计算 ,证明感应淬火处理连杆表层温度沿深度方向的分布与其硬度分布是一致的 ,并且速功比相同的连杆淬火温度场一致 .模拟结果得到了连杆淬火横截面内各层温度随时间的变化曲线 。
Microhardness of the piston rod treated with different induction hardening processes was tested. Finite element analysis (FEA) software, ANSYS/Thermal, was used to simulate the thermal field for high-frequency induction hardening process. The simulation process is divided into three steps: induction heating, spray water quenching and air cooling. The results reveal that the depth of hardening zone is proportional to the ratio of the moving speed to the output power. Through the FEA and calculation, it is proved that the distribution of heating temperature along the depth of piston rod surface layer during induction hardening is in concordance with the curve of hardness distribution. According to the simulation, if the ratio of moving speed to output power is the same for different induction processes, the thermal fields of induction heating are similar. The simulation result establishes the temperature-time curves on separated layers of crossing-section of the piston rod, which plays an important role in the determination of induction hardening process.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2003年第1期111-114,共4页
Journal of Shanghai Jiaotong University
