Abstract: This paper deals with the application of wet welding technology in underwater construction. In this paper, blind welding, cold shortness and hydrogen brittleness are mainly discussed as the major problems arising in underwater wet welding. Some advanced welding procedure, welding rod, welding pressure, welding variable etc to solve these problems and some underwater welding examples are also involved in this paper.

摘要： 介绍了水下湿法焊接技术和应用实例。湿法焊接的主要问题是“盲焊”、“冷脆”和“氢裂”，本文介绍了克服这些弊端的工艺和方法；介绍了比较先进的焊条和电流、电压及焊条直径等焊接工艺参数的选择；介绍了水下焊接操作技术以及实际应用的具体做法。