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Fremgangsmåte ved bretting av profiler som omfatter et hult element og et dekkark, og profil brettet i henhold til denne fremgangsmåten
Fremgangsmåte ved bretting av profiler som omfatter et hult element og et dekkark, og profil brettet i henhold til denne fremgangsmåten
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机译:一种包括空心元件和盖板的折叠型材的方法,以及根据该方法折叠的型材
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摘要
The invention concerns a method which consists in heating the part to be folded of the composite section comprising a hollow body (1) and a coating sheet (2) on one surface and an edge zone, with a temperature gradient from one surface (11, 12) to the other; in pressing the hot forming projecting member (4) against the non-coated surface (12) to bring it closer or press it against the coated surface (11); and while maintaining edges in pivoting at least one of the section parts which are on either side of the zone formed by the projecting member to form therein a fold along a line transverse to the surfaces, approximately perpendicular to the sheet (2) limit on the edges. The resulting section is useful for constituting a double glazing bracing frame.
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