【摘要】 文章就熔化极水喷射水下电弧切割工艺和几个主要工艺参数进行了分析研究。探讨了四种切割速度下的切割现象,提出了采用临界切割速度以提高生产率的新观点。文章还就半自动切割时导电嘴的烧堵现象进行了分析。得出了专用割炬的结构设计依据,从而获得了满意的切割试验结果。更多还原

【Abstract】 Some principal technological parameters of semi-automatic underwater arc cuttingand the cutting phenomena with four cutting speeds have been analysed and studied.A new view is put forward that high cutting rate can be obtained by the use ofa critical cutting speed.This paper also deals with the phenomena of mutual adhesion of conduct tipduring semi-automatic underwater arc cutting.On the basis of a special cutting torchdesign,satisfactory underwater arc cutting results have been achieved.更多还原