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运用正交试验方法和回归分析研究了37Cr Mn Mo钢热处理工艺参数与力学性能的关系。结果表明,影响材料力学性能的主次因素顺序为:回火温度>回火时间>淬火保温时间>淬火温度。通过回归分析得出材料力学性能和热处理工艺参数之间的关系,并获得最优工艺参数为淬火温度890℃,淬火保温时间50 min,回火温度580℃,回火时间60 min。经试验验证,优化后的热处理工艺使材料力学性能得到较大提高。回归值与实测值吻合较好。
The relationship between heat treatment process parameters and mechanical properties of 37Cr Mn Mo steel was studied by orthogonal test and regression analysis. The results show that the main factors affecting the mechanical properties of material order: tempering temperature> tempering time> quenching holding time> quenching temperature. Through regression analysis, the relationship between the mechanical properties of the material and the heat treatment process parameters was obtained. The optimum technological parameters were quenching temperature 890 ℃, quenching holding time 50 min, tempering temperature 580 ℃ and tempering time 60 min. The experimental verification, the optimized heat treatment process to make the material mechanical properties have been greatly improved. The regression value is in good agreement with the measured value.