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軸经長期运轉,必然会产生磨損,磨损到达一定限度时,就会因安全因数的降低而發生危險。另一种情况是軸在潤滑油等的作用下会引起表面腐蝕;如果在潮湿的空气或海水中工作,就更为迅速而严重。有时在腐蝕处形成裂縫,如不及时發觉和挽救,短时間內就可能使軸折断。为了使軸的磨損部分恢复原状,延長軸的使用期限,最有效的方法是使用金屬噴镀,伹拥有这种設备的厂还不多。所以,用堆焊方法来修复磨損的軸还是应用得相当广泛的。 軸的堆焊方法基本上可分为縱向(圖1α)及圆周
Long-term operation of the shaft, will inevitably produce wear and tear, wear a certain limit, it will be due to the safety factor to reduce the danger. In the other case, the shaft can cause surface corrosion under the action of lubricating oil and the like; it can be more rapid and severe if it is operated in humid air or seawater. Cracks sometimes form at the corrosion site. If not found and saved in time, the shaft may break in a short period of time. In order to restore the wear of the shaft to its original condition and extend the life of the shaft, the most effective method is to use metallization, and there are not many plants with this type of equipment. Therefore, the use of surfacing method to repair worn shaft or a wide range of applications. The shaft welding method can basically be divided into longitudinal (Figure 1α) and the circumference