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对磁流体在转轴密封中的应用作了探讨．阐明了磁流体密封的原理，根据磁学理论进行了磁回路的计算．在此基础上设计了磁流体密封的试验装置．实验中采用不同的密封间隙，以确定磁流体密封能力与密封间隙之间的关系．同时，进行了轴旋转和静止时磁流体密封能力变化的试验．试验结果表明，磁流体的密封能力随密封级数的增加而提高，随密封间隙的增大而减小，密封间隙在０．０５～０．２０ｍｍ时，效果较好，同时密封级数有一个最佳值
The application of magnetic fluid in shaft seal was discussed. Clarified the principle of magnetic fluid seal, according to the magnetic theory of the magnetic circuit calculation. On this basis, a magnetic fluid seal test device was designed. Different seal clearances were used in the experiment to determine the relationship between the magnetic fluid seal capacity and seal clearance. At the same time, experiments were carried out to test the change of magnetic fluid sealing ability when rotating and stationary. The experimental results show that the sealing ability of the magnetic fluid increases with the increase of the sealing number and decreases with the increase of the sealing clearance, and the sealing clearance is better when the clearance is 0.05-0.20 mm, and the number of sealing stages is one best value