Nantong COSCO Heavy Industry's improved folding hatch weld welding process is recognized

It is reported that for the folding hatch, Nantong COSCO Heavy Industries has modified the butt weld size of the trunk girder web and the roof panel without violating the design structure, so that even in the group production, the girder web joints The interchange of the left and right sides of the position also ensures that the splicing seam of the girders of the girders and the splicing joints of the roof are completely staggered during the assembly phase, thereby avoiding the waste of rework and the influence of the construction period caused by such re-arrangement.