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东方红75/54拖拉机大梁槽钢裂纹修复,各地都介绍了许多宝贵经验。如箱形断面法、半封闭的箱形焊法、断裂处补板法等,这些修复工艺都是通过附加钢板的方法使大梁强度增加。用这些修复方法不但耗用材料多,而且由于焊缝过长反而增加了焊接应力和焊接变形,并为以后的修理工作带来了很大困难。为了解决大梁裂纹修理工艺,我厂用结507焊条采取回火焊道法焊接东方红75/54拖拉机大梁,效果很好。我们为认这种焊补工艺操作简
Dongfanghong 75/54 tractor girder channel crack repair, all have introduced many valuable experience. Such as box-shaped cross-section method, semi-closed box welding method, such as fracture patch method, these repair processes are by additional steel plate method to increase the strength of the beam. These repairing methods not only consume more material, but also increase the welding stress and welding deformation due to the long welding seam, which brings great difficulties for the subsequent repairing work. In order to solve the beam crack repair process, I plant with knot 507 electrode to adopt the method of tempering welding Dongfanghong 75/54 tractor girder, the effect is very good. We recognize this welding repair process simple