滚动轴承、齿轮、钢轨、凸轮等零件,在接触应力的长期作用下,工作表面的局部区域产生小块金属剁落,形成麻点或凹坑,使振动增大,噪舌增加,温度升高,这种现象统称为接触疲劳失效。国内外对零件的接触疲劳问题进行了深入的研究,并且得出了电镀层不能承受接触疲劳性质负荷的结论。 Rolling bearings, gears, rails, cams and other parts, in the long-term exposure to stress, the working surface of the local area of ​​small metal chops, pitting or pits to make the vibration increases, the noise increases, the temperature increases, This phenomenon is collectively referred to as contact fatigue failure. At home and abroad, the contact fatigue problem of parts has been deeply studied, and the conclusion that the electroplating layer can not bear the contact fatigue load is concluded.