Worn crusher copper sleeve can be repaired by the following methods:

Welding: if the copper sleeve is slightly worn, it can be repaired by welding. First, clean the surface of the copper sleeve, and then use argon arc welding or gas welding to patch weld the worn parts. After the welding is completed, the welding part is ground and polished to make its surface smooth and flat1.

Brush plating: Brush plating is a commonly used surface repair technology, which can be plated with a layer of metal on the surface of the copper sleeve to improve its wear resistance and corrosion resistance. Before brushing plating, the surface of copper sleeve needs to be cleaned and activated, then the plating solution is evenly brushed on the surface, and finally dried and polished.、

Replacement: If the copper sleeve is so worn that it cannot be repaired by the above methods, it needs to be replaced with a new one. When replacing the copper sleeve, you need to choose the same specification as the original copper sleeve and make sure it is installed correctly.

Sole carbon nanopolymer material technology: this technology can realize the rapid repair of the crusher fastening sleeve wear, the whole repair process will not affect the material and structure of the shaft itself, and can ensure better force, in the case of proper bearing lubrication and maintenance, bearing does not appear to erosion, its service life can reach or even exceed the service life of the new parts.

It should be noted that when repairing the copper sleeve of the crusher, it is necessary to choose the appropriate repair method according to the specific situation and ensure the quality of repair. At the same time, in order to extend the service life of the copper sleeve, it is also necessary to strengthen the maintenance and repair of the crusher, regular inspection and replacement of lubricating oil, to avoid overloading and over-ironing and other situations.