Treatment of uncertainty of welding materials in VVER nuclear power engineering

VVER核电工程焊接材料不确定问题的处理 Treatment of uncertainty of welding materials in VVER nuclear power engineering 马新朝 MA Xinchao 1 first-author 中国核电工程有限公司 中国核电工程有限公司 China Nuclear Power Engineering Co.,Ltd. China Nuclear Power Engineering Co.,Ltd. 对VVER压水堆核电站由中俄转换设计、施工过程中典型的焊接技术问题进行分析,提出了解决俄罗斯供材料、中国供材料及第三国材料及母材分类不确定无法确定焊接工艺材料进行评定问题的流程、措施,对俄罗斯供设备缺陷及材料焊接过程中缺陷的处理提出了解决意见和经验反馈,对缺少焊接工艺及焊工资质的困难的施工技术优化也提出了整改意见,有效落实整改方法可促进中俄技术转换,可促进工程建设进度。 This paper analyzes the typical welding technical problems in the design and construction process of VVER PWR nuclear power plant from China to Russia,and puts forward the process and measures to solve the problems of uncertain classification of materials supplied by Russia,materials supplied by China,materials and base metals from the third country,which cannot determine the welding process materials for evaluation. The process and measures for assessing problems,providing solutions and experience feedback for the treatment of defects in equipment and materials in the welding process in Russia,and suggestions for rectification of difficult construction techniques that lack welding processes and welding qualifications,and effectively implemented rectification methods can promote Sino-Russian technology conversion and the progress of project construction. VVER核电机组 焊接技术 焊接材料 不确定问题 处理 TM623 2022-03-08 5 50