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我公司1台使用多年的某型号正面吊,其吊具出现多处严重开裂,特别是重要的结构件如左、右伸缩臂箱体底板和T字梁处,虽经多次局部焊接修理还是反复出现同样开裂问题。经咨询正面吊生产厂家,建议我们更换左、右伸缩臂。考虑更换左、右伸缩臂所需费用很高,我们决定自行修复。1、修复方案及实施情况(1)所需材料使用符合标准AWS:A/SFA5.1 E7018或A/SFA5.20E71-T1的焊材,采用手工电弧焊或CO_2气体保护焊进
My company a multi-year use of a model of the positive crane, the spreader there are many serious cracking, especially in the important components such as left and right telescopic tank floor and T-Beam, although after several local welding repair or Repeated the same cracking problems. After consulting the manufacturer of positive hanging crane, it is suggested that we replace the left and right telescopic arms. Considering the cost of replacing the left and right telescopic arms is high, we decided to repair it ourselves. 1, repair programs and the implementation of (1) the required materials using standard AWS: A / SFA5.1 E7018 or A / SFA5.20E71-T1 of the welding material, the use of manual welding or CO_2 gas welding