When using the repair welding method to repair the large gear of the ball mill, the following points should be noted: 1. If the ring gear has been disconnected, use a clamp to tighten the ring gear, eliminate the gap and then repair it, and use Check the tooth pitch using a sample. 2. When repairing the crack of the large ring gear, in order to prevent the crack from extending during welding, you can drill anti-crack holes of Ф6-8mm at each end point of the crack, make a slight bevel, and use semi-thermal welding or local heating cold welding. 3. During the repair welding process, keep the ambient temperature at room temperature and strictly prevent the intrusion of cold wind. 4. Local annealing treatment is required after the repair welding is completed. 5. When the weld affects the gear tooth meshing, it should be repaired. If you are a customer of a ball mill, or have any questions about the use of a ball mill, we will provide you with professional solutions for ball mill applications for free! Call now to learn more, I believe that communication with "emerging" people will definitely be helpful to your choice! You can also log in to our factory website: www.gyxxjx.com Gongyi Xinxing Machinery Factory