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大型成套设备中重要大件如主轴、压力筒的热处理工艺的拟订,到目前为止都是参考已有的经验曲线和数据,并对实物进行现场测试和解剖分析方能确定。工作繁浩,周期很长,费用巨大,而且难以探索工艺的改进。上海交通大学研制的《计算机模拟大件热处理系统》采用现代计算机技术模拟工件在热处理过程中的温度场、组织场的变化,可以大大减少实验工作量、节约成本、缩短试验和生产周期。该系统由八个程序构成,可以预测二维轴类或筒体的温度场、显微组织及常规机械性能。主要内容有:预测工件中任意位置的加热、冷却曲线;定量预测工件中各部位瞬态及终态时各显微组织的百分含量;预测不同冷却条件下混合组织的回火
So far, the formulation of the heat treatment process for important bulky pieces such as spindles and pressure cylinders in large complete sets of equipment has so far referred to the existing experience curves and data, and can confirm the physical test and the anatomical analysis. Fan Hao work, long cycle, huge cost, and difficult to explore the improvement of technology. The “Computer Simulation Large-Scale Heat Treatment System” developed by Shanghai Jiao Tong University uses modern computer technology to simulate the temperature field and the field changes of the workpiece in the heat treatment process, which can greatly reduce the experimental workload, save costs and shorten the test and production cycle. The system consists of eight programs that predict the temperature field, microstructure and general mechanical properties of a two-dimensional shaft or barrel. The main contents are as follows: to predict the heating and cooling curve at any position in the workpiece; to quantitatively predict the percentage of each microstructure in transient and final state of the workpiece; to predict the tempering of the mixed tissue under different cooling conditions