东方红—54(75)拖拉机的元宝梁(前梁)是由生铁铸成的,在作业条件恶劣的情况下,如拖拉机高速行驶在崎岖的道路上、高速越过障碍物或推土作业中受力过大等,使机车受较大的震动和冲击时,都会引起元宝梁的断裂和损坏。过去对裂缝大的元宝梁一般都作为废铁处理。新金县康家房拖拉机修配厂采用拼凑焊接法.把裂缝在左边和裂 Dongfanghong -54 (75) The tractor’s ingot beam (front beam) is cast from pig iron and runs under harsh conditions such as a tractor traveling at high speed over rough roads, high-speed passing obstacles or dozing operations Excessive force, so that the locomotive by the larger vibration and impact, will cause the ingot beam fracture and damage. In the past on the crack ingot beams are generally treated as scrap iron. Xinjian Kang home tractor repair plant with patchwork welding method. The cracks on the left and cracked