从热力学着眼 ，对控制锻造及对晶粒度控制进行了研究 ，提出了有价值的低压转子钢工艺。

Seeing from therodynamics, a valuable technology of lower-pressure turbine-rotor steel is proposed in the research of controlling forging and controlling crystalline .

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制造大型高低压复合转子的技术难点是：选择最佳的化学成分精炼、合理的锻造工艺和采用特殊的热处理方法。

The technical keys of manufacturing large high - low pressure combined rotors are selecting optimum chemical compositions, refining , forging and special heat treatment.

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从热力学着眼 ，对控制锻造及对晶粒度控制进行了研究 ，提出了有价值的低压转子钢工艺。

So, it has been presented to carry out the control forging, so as to ensure the high quality of heavy forings in nuclear power plant.

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