• CN:11-2187/TH
  • ISSN:0577-6686

›› 2003, Vol. 39 ›› Issue (12): 75-79.

• 论文 • 上一篇    下一篇

水电站合拢焊缝接头形式研究

朱援祥;赵学荣;王勤;胡伦骥   

  1. 华中科技大学材料科学与工程学院;武汉大学;华中科技大学
  • 发布日期:2003-12-15

STUDY ON CLOSURE WELDING JOINT IN HYGROPOWER STATION

Zhu Yuanxiang;Zhao Xuerong;Wang Qin;Hu Lunji   

  1. Huazhong University of Science and Technology WuHan University
  • Published:2003-12-15

摘要: 坝后式引水压力钢管取消伸缩节后合拢焊缝接头形式有对接和搭接两种接头形式。对两种接头形式进行了试验研究,结果表明:对接和搭接两种接头形式都有各自的特点,对接接头形式优点较为明显,采用一些工艺措施可以减少焊接拘束应力和防止裂纹的产生,采用对接接头形式有利于引水压力钢管安全运行。

关键词: 对接接头, 合拢焊缝, 拘束应力, 套管式接头

Abstract: After canceling telescopic joint of penstock in the hydropower station at dam toe, the closure weld has two types including butt joint and lapped joint, two joint types are studied by experiment, the results showed that this two joint types have their characteristics respectively, butt weld has more advantages than lapped joint, adopting some technology methods, constraint stress by welding can be reduced and cracks can be prevented, it’s evident that penstock can run safely using butt weld.

Key words: Constraint stress, Butt joint, Closure weld, Lapped joint

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