搅拌站零件的疲劳损坏：表现形式：断裂、表面剥落：处理方法：在制造过程中提高零件表面的光洁度，采用比较缓和的断面过滤，以减少零件的应力集中。此外，利用渗碳、淬火等方法，提高零件的硬度、韧性和耐磨性，也能收到良好的效果。
Fatigue damage of mixing station parts: manifestation: fracture, surface spalling: treatment method: improve the surface finish of parts in the manufacturing process, and adopt mild section filtration to reduce the stress concentration of parts. In addition, carburizing, quenching and other methods can be used to improve the hardness, toughness and wear resistance of the parts.
而对于一些常见的损伤可以采取适当的修复措施，
For some common damages, appropriate repair measures can be taken,
裂纹的修补：裂纹的修补可用钳工修补、焊补和粘补等方法，但不论用什么方法对裂纹进行修补，都须在裂纹两端钻止裂孔以防止裂纹的扩大。同时也须裂纹附近的油污、氧化皮等。钳工修补主要应用于不太重要的部位的裂纹修补，常见的方法有帮板加固或扣键锚固的方法。对箱体零件进行焊补时，应严格按照焊接工艺参数进行，并采取“加热减应”和其他减小应力防止变形的措施。
Crack repair: the crack can be repaired by fitter repair, welding repair and adhesive repair, but no matter what method is used to repair the crack, the crack stop holes must be drilled at both ends of the crack to prevent the expansion of the crack. At the same time, the oil and oxide scale near the crack must be removed. Fitter repair is mainly used to repair the cracks in the less important parts, and the common methods are to reinforce the upper plate or to fasten the key. When the box parts are repaired by welding, the welding process parameters should be strictly followed, and "heating stress reduction" and other measures to reduce stress and prevent deformation should be taken.

孔的修复。箱体上的孔发生磨损或其他内表面损伤时，可用轴或轴承与孔恢复配合精度的方法修复。当孔壁磨损不大时，可对孔壁或轴颈和轴承外圈镀铬修复；当磨损较严重时，采取镶套的方法，对有些镶有衬套的孔，可用更换或修复衬套的方法。在修复孔时应与箱体的整形加工统盘考虑，即应考虑孔的中心距和中心线间的平行度误差。
Repair of holes. When the hole on the box body is worn or other inner surface is damaged, it can be repaired by restoring the fitting accuracy of the shaft or bearing and the hole. When the wear of hole wall is small, the hole wall or journal and bearing outer ring can be repaired by chrome plating; when the wear is serious, the method of inlaying sleeve can be adopted, and for some holes inlaid with bushing, the method of replacing or repairing bushing can be used. When repairing the hole, it should be considered with the shaping of the box, that is, the parallelism error between the center distance and the center line of the hole should be considered.
焊补修复，焊补前对工件预热以及施焊时的焊接热量都会引起工件的变形，所以应安排在前道工序；粘接修复，因粘补时某些粘接剂也需要加热固化，因而也可能引起工件的变形；恢复整修加工基准，并检测变形情况；钳工修补，整形加工和镶套等机加工。
Welding repair, preheating the workpiece before welding repair and welding heat during welding will cause the deformation of the workpiece, so it should be arranged in the previous process; bonding repair, because some adhesives also need to be heated and solidified during bonding repair, it may also cause the deformation of the workpiece; restore the repair processing benchmark, and detect the deformation; bench repair, shaping and inlaying machining.
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