The validity of ferrography is testified by two examples in abrasion condition monitoring of mine machine.The actual significance of ferrography is incarnated in fault diagnosis of mine machine.

• 通过2个实例说明了铁谱分析技术对煤矿机械磨损状况监测的有效性,体现了铁谱分析技术在煤矿机械故障诊断中的实际意义。