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水下焊接技术,是近20多年来随着海上采油工作的发展及海底管线的大量建设而相应地发展起来的。几十年来一直沿用的水下焊条手工电弧焊的方法,已经不能满足生产发展的需要。海底管线及采油平台的安装及维修都需要有能够获得较高质量的焊接接头的水下焊接新方法。我国的海洋开发还是一个年轻的工业部门,但已展现了对水下焊接的需要。1975年由上海打捞局、海洋石油勘探指挥部和哈尔滨焊接研究所协作开展了 CO_2 气体保护局部排水半自动焊的水下焊接新方法的研究。几年来,设计、制造并不断完善了这种焊接方
Underwater welding technology has been developed in response to the development of offshore oil recovery and the substantial construction of submarine pipelines in the past two decades or so. The method of manual arc welding of underwater welding electrodes, which has been used for decades, can no longer meet the needs of production development. Submarine pipelines and the installation and maintenance of oil platforms require new underwater welding methods that provide higher quality welded joints. Marine development in our country is still a young industrial sector but has demonstrated the need for underwater welding. In 1975 by the Shanghai Salvage Bureau, Offshore Oil Exploration Command and the Harbin Institute of Welding in collaboration CO_2 gas partial drainage semi-automatic welding underwater welding method. Over the years, the design, manufacture and continuous improvement of this welding side