首页> 外文会议>2002 ASME Pressure Vessels and Piping Conference, Aug 5-9, 2002, Vancouver, British Columbia, Canada >THE BWR RPV INTERNALS MANAGEMENT PROGRAM OF THE GERMAN NPP GUNDREMMINGEN, UNITS B AND C: RESULTS AND CONCLUSIONS
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THE BWR RPV INTERNALS MANAGEMENT PROGRAM OF THE GERMAN NPP GUNDREMMINGEN, UNITS B AND C: RESULTS AND CONCLUSIONS

机译:B单元和C单元的德国NPP GUNDREMMINGEN的BWR RPV内部管理程序:结果和结论

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摘要

Due to the core shroud cracks reported from numerous BWRs including the German KWU type BWR Wuergassen, a RPV internals management program for the Gundremmingen NPP (KRB-II) has been initiated in 1994. Major steps and the main results of this program are presented. As an interim result, surface condition of the weld regions and controlled post weld heat treatment (PWHT) in order to reduce the residual stresses seem to play an important role for resistance to crack initiation and growth. To support these assumptions, results of related R&D projects of the German utilities (VGB) are presented.
机译:由于包括德国KWU型BWR Wuergassen在内的许多BWR报道的芯套裂缝,1994年启动了针对Gundremmingen NPP(KRB-II)的RPV内部管理程序。该程序介绍了主要步骤和主要结果。作为临时结果,焊接区域的表面状况和受控焊接后热处理(PWHT)以减少残余应力似乎在抵抗裂纹萌生和扩展方面起着重要作用。为了支持这些假设,给出了德国公用事业公司(VGB)相关研发项目的结果。

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