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空气锤锤杆的顶盖(堵头)采用焊接的方法,常常因为焊接材料和焊接工艺掌握不好焊缝处形成内应力,工作时造成崩裂,这是一种较为普遍的现象。1978年以来,我厂在750公斤空气锤上采用顶盖低温冷缩热膨胀的新方法,经过实际使用,效果良好。这种方法现已应用于其它空气锤上,同样得到了良好的效果。下面介绍 C41-750公斤空气锤锤杆顶盖崩裂后采用低温冷缩热膨胀的工艺过程。1.先将空气锤崩裂的顶盖除去。锤杆可放在卧式镗床或车床上,将锤
Air hammer rod top cover (plug) using welding methods, often because of welding materials and welding process to grasp the formation of internal stress at the weld, resulting in cracking work, which is a more common phenomenon. Since 1978, our factory has adopted the new method of cold shrinkage and thermal expansion of the top cover on the air hammer of 750kg, which is effective after actual use. This method has now been applied to other air hammer, also got good results. The following describes the C41-750 kg air hammer hammer top cover after the use of low temperature shrinkage thermal expansion process. 1. First crack the air hammer to remove the top cover. Hammer rod can be placed on a horizontal boring machine or lathe, the hammer