Due to the influence of vibration, wear, pressure, temperature and other factors on the trolley reducer of overhead crane cranes, oil leakage often occurs in the static sealing parts of each joint surface.

The traditional treatment method involves disassembling the reducer, replacing the sealing gasket or applying sealant, but it is time-consuming and laborious, and it is difficult to ensure the sealing effect,

and leakage will occur again during operation. In contemporary western countries, polymer composite materials are often used to treat leakage on site, and the most widely used Blessed World Blue series.

Polymer materials can be repaired without disassembly, and the material has superior adhesion, oil resistance and 350% stretch, which can well overcome the impact of reducer vibration, and the repair effect is more effective than traditional methods.

The active wheels of the overhead crane crane and the reducer of the trolley run frequently. Repeatedly reversed emergency stops and stops will cause the torque and vibration of the reducer to increase,

and it is easy to cause leakage. After this type of problem occurs, traditional methods mostly focus on repair welding or machining repair after brush plating, but both have certain drawbacks:

the thermal stress generated by the high temperature of repair welding cannot be completely eliminated, and it is easy to bend or break;

while the electric brush Plating is limited by the thickness of the coating and is easy to peel off. The above two methods use metal to repair the metal,

which cannot change the "hard-to-hard" coordination relationship. Under the combined action of various forces, it will still cause re-wear.

Most of the latest repair methods are based on polymer composite materials, and the most widely used products are Mikawa technology products,

which have super adhesion, excellent compressive strength and other comprehensive properties. The application of polymer materials for repair has no effect of repair welding thermal stress,

and the repair thickness is not limited. At the same time, the product has a retreat that the metal material does not have, which can absorb the shock and vibration of the equipment, avoid the possibility

of re-wear, and greatly extend the equipment The service life of components saves a lot of downtime for enterprises and creates huge economic value.

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