By analyzing the damage and leakage of the wicket gate seal for Baishan hydropower plant, it is presented that the main reason of leakage is applying nylon bearing bush.
对白山电站水轮机导叶密封损坏和漏水原因进行了分析，指出了尼龙导叶轴套的不适用是导叶密封漏水、损坏的重要原因。
Dismantle the upper bush of No. 1 main bearing.
拆卸一号主轴承上轴瓦。
The results showed that the segregation of Pb atoms in the interface between the alloy and the steel back was the main factor leading to the failure of the bearing bush.
结果表明， 铅原子在合金层与钢背材料结合面上的聚集是导致轴瓦失效的主要原因。
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