海工船舶厚板Y型坡口不清根高效焊接新技术

Thick Plate Y-groove High Efficient New Welding Technology without Back Gouging used in Marine Vessels

针对传统的厚板V型坡口清根焊接技术,本文提出了Y型坡口不清根高效焊接新技术。通过对焊接接头的宏观金相分析得出了Y型坡口焊接可采用的最大钝边尺寸以及所适用的焊接规范,并将此技术应用于海工船舶厚板对接拼焊中,相对传统的V型坡口焊接技术,产生了显著的经济效益和环保价值。

For the traditional V-groove plate gouging welding technology, this paper presents a Y-groove high efficient welding technology without back gouging. Through macro metallographic analysis of welded joints, the biggest blunt edge size and the applicable norms of Y groove welding are obtained. And the technology used in marine vessels butt welding of thick plate, compared to traditional V-groove welding technology, results in significant economic and environmental value.