| 摘要 |
<p>A method for relatively low temperature cleaning of metal parts, particularly stainless steels, superalloys, solid solution superalloys and gamma prime hardened nickel alloy parts, in order to render them brazable or otherwise bondable is provided which utilises a C-O-H-F atmosphere as the primary cleaning material. The preferred source of the C-O-H-F atmosphere is by thermal decomposition of a fluorocarbon resin to which is added a low moisture-containing hydrogen gas. The atomic ratio of H to O in this atmosphere is 10<4> or greater.</p> |
