高压水下湿法焊接系统设计与信号采集分析  

Design and Signal Acquisition Analysis of High Pressure Underwater Wet Welding System

作　　者：李志刚 李洋 黄卫 徐翔 叶剑雄 LI Zhigang;LI Yang;HUANG Wei;XU Xiang;YE Jianxiong(Key Laboratory of Vehicle Tools and Equipment,Ministry of Education,East China Jiaotong University,Nanchang 330013,China;College of Mechanical and Electrical Engineering,Nanchang Institute of Technology,Nanchang 330029,China)

机构地区：[1]华东交通大学载运工具与装备教育部重点实验室,江西南昌330013 [2]南昌工程学院机电学院,江西南昌330029

出　　处：《热加工工艺》2021年第19期119-123,共5页Hot Working Technology

基　　金：国家自然科学基金资助项目(51665016)。

摘　　要：设计了一种具有信号同步采集功能的高压水下湿法焊接系统。该系统由焊接系统、信号同步采集系统、伺服驱动系统和空气加压系统构成,可精准记录引弧到稳弧过程中的光、电、声信号以及焊接气泡状态信息。同时分别进行了0.3、20 m水深条件下的湿法焊接对比试验,综合分析水压条件对水下电弧的影响。结果表明,水压越大,电信号及焊接气泡稳定性越差,焊缝成型质量下降,但电弧粒子成分并未随水压的升高发生改变。A high pressure underwater wet welding system with signal synchronous acquisition was designed. The system consists of a welding system, a signal synchronous acquisition system, a servo drive system and an air pressurization system,which can accurately record light, electrical signals and welding bubble information during the welding process. At the same time, the wet welding comparison test under the conditions of water depth of 0.3 m and 20 m was carried out, and the influence of water pressure conditions on underwater arc was comprehensively analyzed. The results show that the bigger the water pressure, the worse the stability of the electric signal and the shape of the welded bubble, the weld quality is reduced,but the ion composition of arc does not change with the increase of water pressure.

关 键 词：水下湿法焊接 系统设计 同步采集 

分 类 号：TG439.9[金属学及工艺—焊接] TG456.5