锻压技术

大型汽轮机低压转子混晶缺陷预防工艺措施研究

英文标题：Study on forging technology preventing mixed grain structure defect in huge lower pressure steam turbine rotor

作者：金泉林

单位：机械科学研究总院

关键词：大型汽轮机低压转子混晶缺陷热锻工艺数值模拟晶粒度预测

分类号：TG316

出版年,卷(期):页码：2012,37(4):8-13

摘要：

揭示了大型汽轮机低压转子锻件产生混晶缺陷的主要原因，提出消除混晶缺陷的锻造工艺措施，通过生产验证和晶粒度数值计算验证，获得了锻造300和1000MW两种汽轮机低压转子的具体工艺参数，申请并授权了两项发明专利。

The cause of the mixed grain structure defect in huge lower pressure steam turbine rotor was discovered, and a new forging technology to prevent the mixed grain structure defect was suggested. Two sets of forging processing parameters for 300MW and 1000MW LP steam turbine rotors were given and validated by production application and numerical prediction of grain size. Two state invention patents on above technologies have been authorized in China.

基金项目：

机械部七五科技攻关资助项目（862A2014）；八五科技攻关资助项目（8530204041）；机械部基金资助项目（95JA0404）；科技部攀登B项目；国家重点基础研究发展计划资助项目（G2000067208-2，2006CB605208-3，2011CB606306-3）

参考文献：

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