| 摘要 |
<p>Method for locating pressure losses in vacuum bags used in the production of composite material parts, according to which the vacuum bag with a part within covered by an aerating fabric at a pressure below atmospheric pressure is exposed to contact with a gaseous dispersion, at atmospheric pressure, of solid, suspended tracer particles, preferably tar particles, which, in the event of there being losses of pressure in the vacuum bag, are deposited in zones of the aerating fabric close thereto. Contact between the vacuum bag and the gaseous dispersion is achieved preferably by applying said gaseous dispersion to the vacuum bag using an applicator device either in an open enclosure or in a closed enclosure, such as an autoclave.</p> |
