MULTILAYER METAL/FLEXIBLE GRAPHITE SEALS SUITABLE FOR HIGH-TEMPERATURE SERVICE CONDITIONS

摘要

the invention relates to a composite board made by alternately stacking of(n + 1) sheets of flexible graphite and metal sheets (n).punch rods (n & = 2), characterized in that the thickness of theflexible graphite sheets used are such that anythickness of 2 mm of the plate comprises at least three layers of compositeflexible graphite and graphite mass per unit area ofin 34 kg / m2, and that for each of said sheets fora perforated metal sheet, the rods in such a height.with respect to the surface of the sheet which is not more than 1.3 timesthe thickness of the thinner layers of flexible graphite which iscomposite board attached. this allows the manufacture of gasketstemperature resistant 55o0c under steady-state conditions.