Then the heat conducting and temperature variation of the standard shape workpiece in the cooling process are calculated.

其次计算了急冷过程中标准形状工件的热传递及温度变化的数学规律；

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Also a closing course of initial crack and thermal cracking coming into being in the cooling process are observed in our experiment.

实验还观察到砂岩表面微缺陷发生闭合的全过程，在冷却过程也有微裂纹形成等现象。

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The results show that the decarbonization of Si Mn bearing spring steel mainly occurs both in the heating process prior to rolling and in the cooling process after rolling.

结果表明：硅锰弹钢脱碳主要发生在轧前加热过程中，轧后冷却也发生脱碳。

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