Due to the influence of vibration, wear, pressure, temperature and other factors, the static sealing parts of the surface of the overhead crane often appear oil leakage. Traditional methods is to remove the reducer, replace the gasket or apply sealant, but time-consuming and laborious, and it is difficult to ensure the sealing effect, the operation will be re leakage. Western countries use polymer composite material on-site treatment of leakage. Polymer materials can repair disassembly, tensile strength and material with superior adhesion, oil resistance and 350% stretching degree, is very good to overcome the impact of vibration reducer, is more effective than the traditional method.

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