薄壁筒身插入式内坡口全焊透法兰焊接变形控制

CONTROL ON DEFORMATION OF WELDING FLANGE INSERTED INTO THIN WALL CYLINDER USING THE PROCEDURE OF FULL PENETRATION AND INTERNAL GROOVE

详细介绍了核电站汽水分离再热器 (简称MSR)产品中大直径薄壁压力容器插入式法兰的连接方式和法兰变形情况 ,以及焊接工艺对产品法兰密封面变形和机械加工尺寸的影响。通过对不同规格法兰在不同参数条件下焊后变形实测结果和统计数据的分析 ,总结归纳了这类焊透结构插入式法兰变形的一般规律及其产生变形的主要工艺因素和预防措施 。

The paper introduced statistical data and measured result of deformation of welding flange inserted into thin wall cylinder of major diametrical vessel. And pointed out the prevented measure of deformation. There is better actual value to guide the manufacture of similar products.