进口柴油锤上汽缸开裂,修复后再次发生开裂的主要原因: 1.焊口存在焊接缺陷(如气孔、夹碴、裂纹)。 2.存在细小裂纹。该柴油锤上汽缸材质近似于我国的20号钢或16Mn。上汽缸开裂,可以按下述步骤修复。 (1)用比色检验法检查裂纹 (2)用磨角器对裂纹进行处理如图所示 Imported diesel hammer on the cracking of the cylinder, the main reason for cracking again after the repair: 1. There are welding defects (such as pores, cracks, cracks) in the weld. 2. There is a small crack. The material of the cylinder on the diesel hammer is similar to that of China’s No. 20 steel or 16Mn. The upper cylinder cracking can be repaired as described below. (1) Checking cracks with colorimetric test method (2) Treating cracks with horn grinder as shown