Bearing housing wear
The open mill is subjected to vibration shock and other compound forces during production and operation, and failures such as bearing chamber wear often occur. The traditional methods include surfacing, thermal spraying, electric brushing, etc., but there are certain drawbacks: the heat generated by the high temperature of repair welding The stress cannot be completely eliminated, which is easy to cause material damage, resulting in bending or breaking of parts; while brush plating is limited by the thickness of the coating, which is easy to peel off, and the above two methods are repairing metal with metal, which cannot change the "hard to hard" relationship. The cooperation relationship will still cause re-wear under the combined action of various forces. Modern western countries mostly use the repair method of polymer composite materials to solve the above problems, and the most widely used is the Fushilan technology system, which has comprehensive properties such as super adhesion and excellent compressive strength, and can be disassembled and free of machining. . It is not affected by the thermal stress of repair welding, and the repair thickness is not limited. At the same time, the metal material of the product does not have the concessional property, which can absorb the shock and vibration of the equipment and avoid the possibility of re-wear.
Shaft head crack leakage
During the long-term operation of the mill, due to the influence of vibration, wear, pressure, temperature, and repeated disassembly and assembly, oil leakage at the static sealing parts of each joint surface is very common. Head crack leakage, etc. It not only causes a lot of waste of oil products, but also affects the on-site management of enterprises.
