传统的埋弧焊工艺要求施焊前在焊件的端部装焊引弧板.引弧板的厚度一般与焊件相近,长度约200mm,其与焊件的装配要求间隙很小,装配工艺繁琐,焊后又必须割掉,这样就限制了自动埋弧焊方法在短焊缝上的应用.针对这种情况,我们在厚板对接接头的端部附加石墨板及过渡板,在过渡板上引弧.经试验焊缝质量满足要求,经济效益显著,已在我厂产品生中得到应用. The traditional submerged arc welding process requires that the end of the weldment before welding arc welding plate.Into the thickness of the arc welding plate is generally similar to the weldment, the length of about 200mm, with the weldment assembly requirements gap is small, the assembly process Cumbersome, and must be cut off after welding, thus limiting the automatic submerged arc welding method in the application of short welds.In response to this situation, we join the ends of the plate butt joints graphite plate and transition plate, the transition plate On the arc. The quality of the test weld to meet the requirements, significant economic benefits, has been applied in our products.