本架桥机 主要应用于大跨度、大吨位、双幅桥梁架设中混凝土整孔箱梁的架设。
The gait-model bridge girder erection machine mainly applied to the erection of long-span, large-tonnage and double amplitude bridge deck concrete full-span box girders.
对定位板零件的冲压工艺进行了分析，改用冲孔—整孔—落料连续冲压工艺，可明显提高工件质量及生产率。
With the analysis of punching technology of locating plate, punching hole-mending hole-blanking continuous punching technology can improve part quality and production efficiency greatly.
滚压是大深缸孔光整加工方法之一。
Rolling is one of the methods for finishing big diameter deep cylinder-hole.
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