| 摘要 |
<p>A mechanical seal face ring 1 or component constructed from a base material and covered with a secondary material 9 such as tungsten based alloy to improve its mechanical properties. The coating may be applied by vapour deposition, preferably low temperature deposition. The base material is highly ductile and or has a high tensile strength such as carbon or stainless steel. The coating may be no more than 1.5mm and may be ground flat to within 1-2 light bands</p> |
