| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent oil leakage from a flange part used in electric power equipment, in particular, oil leakage from an annular contact line that is a border dividing two pipe flanges.SOLUTION: An oil leakage prevention method includes: a first step where a contact line 102C that is a liquid leakage prevention portion is covered by a filamentous material; and a second step where a side surface 102A of a pipe flange 102F, which is a prevention target area including the liquid leakage prevention portion covered by the filamentous material, is sealed by a seal material 14a in a fluid-tight manner.</p> |
