目前，在锻造等热塑性成形生成过程中常采用快速加热和介质保护加热等方式来减少和防止坯料在加热过程中的氧化。

At present, quick heating or medium protected heating to reduce or prevent oxidation during heating are often used in the process of thermo-plastic forming such as forging.

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对曲轴坯料锻造前的冷却过程进行了模拟，研究了温度场的变化情况，通过与实测结果的比较，证明了模拟过程的可靠性。

The cooling process of crankshaft blank before forging was simulated. The reliability of the simulation program was confirmed by comparison the change of simulated temperature with that of measured.

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介绍了差温无模锻造的概念和基本原理以及要在金属坯料土产生大的差温所采取的方案。

The concept of thermal differential mouldless forging and the method of generating large thermal differential are introduced first.

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