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我厂生产的起重量550t、跨度33m的桥式起重机,是国内生产的起重量最大的起重机.对偏轨箱形主梁主腹板与上盖板间的角焊缝,设计要求焊透并达到JB1152—81标准1级,且翼缘板与轨道接触面角变形不得大于0.5mm.对厚板结构要达到上述要求是有一
The crane with the capacity of 550t and the span of 33m produced by our factory is the cranes with the largest lifting capacity in China. The fillet welds between the main web and the upper cover of the derailed box girder are designed to be welded thoroughly To JB1152-81 standard level 1, and flange plate and rail contact surface angle deformation shall not be greater than 0.5mm. To thick plate structure to achieve the above requirements there is a