环形核燃料元件焊缝的数字X射线成像检测  

Digital X-ray imaging inspection of annular nuclear fuel element weld

作　　者：汤慧[1] 张小刚 俞东宝[1] TANG Hui;ZHANG Xiaogang;YU Dongbao(China North Nuclear Fuel Co.,Ltd.,Baotou 014035,China)

机构地区：[1]中核北方核燃料元件有限公司,包头014035

出　　处：《无损检测》2021年第5期83-86,共4页Nondestructive Testing

摘　　要：环形核燃料元件是一种两面冷却的新型、高效和安全的燃料元件,为确保该元件环焊缝的焊接质量,对其进行了数字X射线成像检测,检测结果表明,柱面环焊缝射线检测图像灵敏度(最小可见丝径)达0.20 mm,端部环焊缝射线检测图像灵敏度达0.10 mm。通过金相试验进一步验证了该检测方法可满足该类焊缝的质量评价要求。Annular nuclear fuel element is a new, efficient and safe fuel element cooled on both sides. In order to ensure the welding quality of the circumferential weld of the element, the digital X-ray imaging detection is carried out. The detection results show that the image sensitivity(minimum visible wire diameter) of cylindrical girth weld is 0.20 mm, and that of end girth weld is 0.10 mm. The metallographic test further verifies that the detection method can meet the requirements of the quality evaluation of the welds.

关 键 词：环形核燃料元件 环焊缝 数字X射线成像 

分 类 号：TG115.28[金属学及工艺—物理冶金]