| 摘要 |
<p>A sealing member for sealing magnetic fields according to the present invention is a sealing member (1) arranged so as to surround a periphery of a working member (5) such as shaft. The sealing member (1) comprises an annular magnet (2) and an annular pole piece (3), an electrically conductive magnetic fluid (6) being provided between the sealing member (1) and the working member (5) to construct an electrically conductive magnetic fluid-sealing member. And, an inner circumferential surface of the annular magnet (2) is coated with an electrically conductive non magnetic film (4) continuing to the annular pole piece (3) to down-size the sealing member (1) and reduce an electrical resistance.</p> |
