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蒸汽机车上,曲拐销与摇连杆瓦套,导、从、动、煤轴与轴瓦等相对运动部件之间,一般都使用白合金,组成摩擦副。但是,白合金在使用过程中,由于它的熔化、脱落、掉块等引起的事故占机破、临修总件数的21.1％,还由于白合金磨耗快、径向间隙大、换套率高,增加了检修费用,降低了机车的牵引力。因此,白合金使用中的问题,也是铁路部门能否做到安全、高效和低消耗的一个重要问题。
Steam locomotives, crank and crank connecting rod cover, guide, from, moving, coal shaft and bearing and other relative movement between the components, the general use of white metal, friction pair. However, the use of white metal in the process, due to its melting, shedding, dropping blocks and other accidents accounted for machine broken, repair the total number of 21.1%, but also due to wear faster white metal, large radial clearance, the exchange rate is high , An increase of maintenance costs, reducing the locomotive traction. Therefore, the white metal used in the issue, but also the railway sector can be safe, efficient and low consumption of an important issue.