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利用已知的ＴＴＴ图，通过编制的程序计算，绘出ＣＣＴ曲线并预测不同冷速下的组织、硬度等。所编程序是针对多种钢种的，最后结果与实测结果相符．
Using the known TTT chart, through the preparation of the program to calculate, draw the CCT curve and predict the different cooling rates under the organization, hardness and so on. The program is programmed for a variety of steel, the final result is consistent with the measured results.