根据链条铰链磨损机理，提出对链条快速磨损试验机的设计要求。
According to the chain hinge wear mechanism, this paper advances the design requirements of the high speed wear testing machine of chain.
通过快速模拟磨损试验发现铌铸铁油环耐磨性能比铬钼铜油环提高87.3%，并降低了油环的制造成本。
The results also find that wear resistance of niobium cast iron oil ring is 87.3% higher than that of CrMoCu alloy cast iron along with the cost reduction for niobium cast iron oil ring.
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