Surfacing welding is used for the weld joints of the blade and the rear disc, and the welding rod is required to be used quantitatively and uniformly welded. According to the induced draft fan for a long time of 984r / min, L / D = 58516000.37, check the rotor balance requirements only need to do static balance. In order to simplify and meet the static balance requirements, we have made a balance frame, the balance shaft is 310E bearing, the specific requirements for the balance table are: the balance shaft's circular runout <0.005mm, the coaxiality of May 1997 to the "exhaust fan impeller" Inspection and repair data, the bearing data before and after lateral vibration are: amplitude 0.02mm, axial direction 0.012mm, longitudinal direction 0.008n, m. It proves that this method is reliable and the effect is obvious. Calculated by annual wear 4mm (by 7000h), service life It can be increased to 280h, and the direct cost is reduced by nearly 100,000 yuan/unit. The maintenance cost is more than 10 yuan. The implementation of this method is more complicated, but feasible, the input cost is lower, the operating cycle can be improved by nearly 4 times, the benefit is obvious, and the induced draft fan is wear-resistant. A better way to promote it.
Introduction of Luggage Tags:
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What we can do on Luggage Tags?
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