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大型锻件锻造过程中工件温度场的变化规律对于保证锻件质量具有重要作用,由于锻件受环境温度、保温情况等诸多因素影响,生产中很难准确预测锻件锻造过程中温度变化规律。通过实验模拟实际生产中锻件加热曲线,在不同保温措施下,取锻件芯部至表层不同测控点进行锻造过程中的温度测量,通过数据分析建立了Mn18Cr18N护环钢锻造过程中的温度场,得出锻件的温度差与时间变化曲线及温度变化速率图,描述了工件在一定保温措施下的温度场变化情况,其结论对准确了解Mn18Cr18N护环钢锻造过程中的温度变化规律具有实际指导意义。
Large-scale forging process of workpiece temperature changes in the law for ensuring the quality of forgings plays an important role, due to the forging by the ambient temperature, insulation and many other factors, it is difficult to accurately predict the production forging process forging temperature variation. The heating curve of forgings in actual production was simulated experimentally, and the temperature in forging process was taken from the core of forgings to different control points on the surface under different insulation measures. The temperature field in forging process of retaining ring Mn18Cr18N was established by data analysis. Out of the forging temperature difference and time curve and the temperature rate of change chart, describes the temperature changes in the workpiece under certain insulation measures, the conclusion of an accurate understanding of Mn18Cr18N retaining ring steel forging process of temperature change has practical significance.