水下湿法焊接工艺在沉船打捞工程中的应用  

Application of Underwater Wet Welding in Sunken Vessel Salvage Engineering

作　　者：杜永鹏[1] 郭宁[2,3] 刘志强[4] 袁新[1] 

机构地区：[1]山东省科学院海洋仪器仪表研究所,山东青岛266001 [2]哈尔滨工业大学(威海),山东威海264209 [3]山东省特种焊接技术重点实验室,山东威海264209 [4]交通部烟台打捞局,山东烟台264000

出　　处：《焊管》2015年第4期43-47,共5页Welded Pipe and Tube

基　　金：国家863重点资助项目(2008AA092901)

摘　　要：针对某次沉船事故打捞方案中需要在水下焊接扳正桩头的情况,设计了原桩头1/4尺寸的缩比模型,为验证水下焊接质量,在不同焊接规范下对缩比模型进行焊接,并对焊后试件的力学性能进行了检测。结果表明,在该焊接规范下所焊试件的焊缝成形良好,目测无明显缺陷,所设计试件结构的承载拉力达到了设计承载力的2倍,且焊接效率较高,能在短时间内完成施焊工作,实现了预期设计目标。According to the salvaging program for a sunken ship, the righting head which is under water should be welded. A 1∶4 scale model was designed. In order to verify the welding quality under water, the scale model was welded under different welding specifications, and the mechanical properties post welding were detected. The results showed that the weld formation is good, without obvious visual defects under this welding specification, the bearing force of specimen structure is two times of the designed value, and with high welding efficiency. It can finish welding work in a short time, achieve the expected design goal.

关 键 词：焊接 沉船打捞 水下湿法焊接 抗拉强度 

分 类 号：TG407[金属学及工艺—焊接]