焊修汽车大梁的方法,一般有以下两种:1.先沿裂缝焊上一层,然后在正反两面盖上盖板再焊。2.用铆焊结合的方法,先将盖板贴在裂缝上,用铆钉铆好后再焊。用以上方法焊补的大梁,就变得厚薄不匀,高低不平;而且增加了大梁的重量,降低了 Welding repair car girder method, generally have the following two: 1. Welding along the seam on the first floor, and then covered in the positive and negative cover and then welding. 2. With the method of rivet welding, the first cover affixed to the crack, rivet riveted before welding. With the above method welding beam, it becomes uneven thickness, rugged; but also increased the weight of the girder, reducing