| 铜母线冷弯断裂原因分析 |
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| 引用本文： | 孙俊华,葛虹.铜母线冷弯断裂原因分析[J].理化检验(物理分册),2001,37(4):171-172. |
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| 作者姓名： | 孙俊华 葛虹 |
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| 作者单位： | 武汉汽轮发电机厂, |
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| 摘 要： | 汽轮发电机用铜母线在冷弯过程中发生断裂，对未断和断裂铜母线进行了检验并作对比分析，结果表明，预变形度不够，导致铜母线在退火中晶粒显著长大，造成冷弯断裂。
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| 关 键 词： | 冷弯 断裂 晶粒度 预变形度 铜母线 汽轮发电机 退火 |
| 文章编号： | 1001-4012(2001)04-0171-02 |
| 修稿时间： | 2000年8月15日 |
BEND CRACKING ANALYSIS OF COPPER BAR FOR STEAM TURBINE GENERATOR |
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| SHUN Jun hua,GE Hong.BEND CRACKING ANALYSIS OF COPPER BAR FOR STEAM TURBINE GENERATOR[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2001,37(4):171-172. |
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| Authors: | SHUN Jun hua GE Hong |
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| Abstract: | Copper bar for steam turbine generator craked during cold bending. Chemical analysis and microstructure examination on failed and normal copper bar indicated the abnormal grain growth during annealing of copper bar was the main cause of bend cracking. Large amount of deformation of copper bar before annealing could avoid bending failure. |
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| Keywords: | Cold bend Fracture Grain Deformation Copper bar |
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