中文摘要：

为了解决水下湿法手弧焊焊接过程中电弧燃烧和熔滴过渡的稳定性容易受到干扰等问题，本文针对其焊接过程的特点，分析了影响湿法手工电弧焊焊接过程的因素，对焊接过程稳定性评价的研究现状进行了总结，并得出一种较为全面的评价焊接过程稳定性的方法，即利用统计图形的方式对焊接过程中的电参数及相关的时间参数进行统计分析，得出反映焊接过程的信息。该方法对焊接过程的描述直观、准确，对于研究新型水下湿法焊接材料，提高焊接过程稳定性和焊缝质量，以及水下湿法焊接技术的推广应用具有重要的意义。

英文摘要：

This paper addresses some factors affecting the stability of underwater wet manual arc welding process based on underwater characteristics to solve the problem that the stability of arc burning and droplet transition is easy to be interfered. We survey welding process stability evaluation methods before obtain a statistical graphics method to analyze the electrical parameters of the welding process and the related time parameters. It describes a welding process more intuitionisticly and accurately. It is therefore quite significant for the research on new underwater wet welding materials, stability improvement of the welding process and quality of welding seam and the generalized applications of underwater wet welding technology.