摘要
三峡电站水轮机蜗壳结构尺寸大,钢板厚,材质好,目前已经完成８台机组的焊接施工并通过联合验收;从对蜗壳焊缝的无损检测结果来看,５台机组的蜗壳焊接质量良好。
Six major spiral cases made of quality thick steel sheets have been welded in the construction pits and qualified by joint inspection, and the block-out has being poured now. According to the results from the non-destructive test performed on the weld joints, the welded spiral cases are all superior in quality. The experience in welding procedures and quality control of the spiral cases of VGS units describes in the article can be available for reference for the other units being installed in the left powerhouse at the Three Gorges project.
出处
《中国三峡建设》
2002年第5期15-16,共2页
China Three Gorges Construction
