Analysis of condenser tube sheet sealing welding problems and welding process improvement

ZHANG Bin

doi:10.7512/j.issn.1001-2303.2020.11.15

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Analysis of condenser tube sheet sealing welding problems and welding process improvement
Vol. 50, Issue 11, Pages: 83-87(2020)
Published：2020
DOI： 10.7512/j.issn.1001-2303.2020.11.15
稿件说明：

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DOI：

ZHANG Bin. Analysis of condenser tube sheet sealing welding problems and welding process improvement[J]. Eletric Welding Machine2020, 50(11): 83-87. DOI： 10.7512/j.issn.1001-2303.2020.11.15.

摘要

针对核电机组凝汽器管子管板封口焊前期项目生产过程及现场检查发现的质量问题进行了梳理和总结

分析其原因

并从清洁度控制、焊接参数优化、工艺参数调节试板的应用、焊缝成形及进深值控制提出了技术改进措施

在实际应用中取得了良好效果

为国内核电凝汽器管子管板封口焊焊接工艺的改进提供了借鉴经验。

Abstract

An overview and cause analysis of the typical defects found in manufacturing and on-site inspection of tube to tube sheet sealing welding of condenser for CPR1000 nuclear power units are provided. And the technical improvement measures concerning cleanliness control

welding parameter optimization

welding parameter adjustment test plate application

weld formation and depth control are proposed

and good results are obtained in practical application

which provides reference experience for the improvement of the sealing welding tech-nology of nuclear power condenser tube sheet.