介绍了发动机三层轴瓦在重载、高速运转工况下极易产生镀复层熔融流动，从而导致轴承胶合、剥离故障的发生。阐明了引起上述故障的原因是镀复层熔点低，镀复层元素向铜铝合金层交界处扩散和铜铅合金层的传热系数低等。同时还介绍了针对这些问题所进行的一系列试验研究与改进，并作了轴承单体试验和发动机台架试验，经改进后，轴承的耐胶合性有了大幅度提高。 Introduced the engine three-layer bearing in the heavy load, high-speed operation conditions easily produce molten coating cladding flow, resulting in the occurrence of bearing gluing, stripping failure. The reasons that cause the above failures are explained as follows: the melting point of the plating layer is low, the diffusion coefficient of the plating layer to the junction of the Cu-Al alloy layer and the heat transfer coefficient of the Cu-Pb alloy layer are low. At the same time, a series of experimental researches and improvements on these problems were also introduced. Single bearing tests and engine bench tests were also conducted. After the improvement, the adhesion resistance of the bearings has been greatly improved.