抽水蓄能电站用发电机线圈挡块组件国产化研究  

Localization of Generator Coil Block Components for Pumped-Storage Power Station

作　　者：李驹[1] 改传跃[1] 王静 

机构地区：[1]国网上海市电力公司电力科学研究院,上海200437 [2]上海闸北发电厂,上海200438

出　　处：《华东电力》2013年第12期2629-2632,共4页East China Electric Power

摘　　要：通过分析进口和国产发电机线圈挡块组件在化学成分、微观组织、力学性能等方面的差异,确定国产挡块组件质量是否满足使用要求。结果表明:国产铝合金综合性能与进口铝合金有差别,在化学成分控制上需进一步提高;国产12.9强度等级的螺栓因热处理不充分不适合替代进口12.9强度等级的螺栓;进口和国产限位块的各项性能比较接近,螺栓"咬死"问题是由于两者整体强度硬度不相匹配导致,建议重新选用与螺栓强度相匹配的材料。Through the comparative analysis of imported and domestic generator coil block components in terms of ehemical composition, microstructure and mechanical properties, this paper aims to determine whether domestic block component qnality can meet the application requirements. Results show that there exists difference between the domestic and imported aluminum alloy in the comprehensive performance and the chemical composition control. Domestic bolt of 12.9 strength class is not a suitable replacement of the imported bolt of 12.9 strength class due to its inadequate heat treatment. Imported and domestic limit blocks are similar in various performances. Bolt scuffing problem is eaused hy the mismatch in the overall strength and hardness; therefore, it is suggested to select the material matching the strength of the bolt.

关 键 词：发电机线圈挡块 国产化 螺栓 咬死 

分 类 号：TK256[动力工程及工程热物理—动力机械及工程] TM612[电气工程—电力系统及自动化]