Radiographic testing of BOSS welding seam of condenser tank for nuclear power plant
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摘要: 根据冷凝罐BOSS焊缝（小支管与筒体的安放式角焊缝）的制造工艺和结构特点，结合客户对BOSS焊缝体积型缺陷的检测要求，参照标准RCC-M-2007 《压水堆核岛机械设备设计与建造规则》 制定了冷凝罐BOSS焊缝的射线检测工艺，并进行射线检测试验和工艺验证。射线检测结果符合检测相关标准要求，检测效果非常显著。根据检测出的缺陷类型，改进了制造工艺，提高了产品合格率。Abstract: According to the manufacturing process and structural characteristics of the BOSS welding seam(Placement fillet weld between small branch pipe and cylinder) of the condensing tank, combined with the customer's requirements for the detection of BOSS welding seam defects, and referring to the standard RCC-M-2007 “Design and construction rules for pressurized water reactor nuclear island mechanical equipment”, the condensation Radiographic inspection process of tank BOSS welds was drafted, and radiographic inspection test and process verification were correspondingly conducted. The radiographic inspection results meet the requirements of relevant inspection standards, and the inspection results are very significant. According to the types of defects detected, the manufacturing process is improved and the product qualification rate is increased.
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Keywords:
- BOSS weld /
- radiographic testing /
- process validation
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[1] 吴伟邦, 许金才.核电BOSS头焊缝无损检测要求[J].无损检测,2018,40(3):51-55. [2] 李予卫. 核电厂管道BOSS焊缝射线检测工艺研究和验证[J].电焊机,2019,49(4):26-31.
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