中文摘要：

介绍了磁流体在煤矿机械润滑与密封中的应用，对磁流体的润滑性能进行了实验研究，不同浓度配比下的磁流体润滑液对比实验表明加入磁性纳米颗粒的润滑油有着非常明显的降低摩擦阻力的作用，其最大降幅达27％。

英文摘要：

The application of the magnetic fluid in sealing and lubricating of mining mechanics is introduced and lubricating characteristics of magnetic fluid have been studied. It is showed that the oil of including magnetic particulate can obviously reduce friction by the test varying density of the magnetic fluid. The maximum reducing amplitude achieves 27 %.