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：

［1］金泉林. 一个新的动态再结晶分析模型[J]. 塑性工程学报, 1994,1(1):3-13.
［2］Qu Jie, Jin Quanlin, Xu Bingye. Parameter identification for improved viscoplastic model considering dynamic recrystallization[J]. International Journal of Plasticity, 2005，21(7):1267-1302.
［3］JIN Quanlin,XU Fujun. The Numerical Simulation of Dynamic Recrystallization and Prediction of Grain Size inhomogeneity[A]. Advanced Technology of Plasticity[C]. Nuremberg, Germany,1999.
［4］金泉林.热锻工艺数值模拟及微观组织预测技术[J].锻压技术，2002， 27(2):1-3.
［5］Quanlin Jin, Zhipeng Zheng. Numerical simulation of microstructure evolution during hot forging[A].Microstructures and Mechanical Properties of New Engineering Materials
［C］. China,2003.
［6］Quanlin Jin. Numerical simulation of microstructure evolution during hot forming [A]. The 3rd Seminar of Sino-Korea Cooperation on the Advanced Manufacturing Technology [C]. Beijing, China,2008.
［7］Bingye XU, Jie QU, Quanlin JIN, et al. Modelling of Dynamic recrystallization in hot working [J]. Key Engineering Materials, 2007,340341:779-786.
［8］许福军. 低压转子钢锻造性能研究[D]. 北京：北京机电研究所，1998.
［9］机械科学研究总院先进制造技术研究中心. 1000MW核电站汽轮机低压转子的锻造工艺[P].中国专利：ZL200810146679.X，2011-02-16.
［10］北京机电研究所. 消除大型转子锻件混晶缺陷工艺[P]. 中国专利：ZL200510114420.3，2008-09-17.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】