Method and device for pressure balancing of hoses at...

Details Method and device for pressure balancing of hoses at... Method and device for pressure balancing of hoses at...

B - Operations, Transporting

29

C

B29C 47/56 (2006.01) B05C 11/10 (2006.01) B29C 47/92 (2006.01)

Patent

CA 2066771

Method and device to pressure balance hoses at supply of two different components with substantially the same pressure to an extrusion head, where the flow of the second component is substantially below the flow of the first component, e.g. at the thermosetting plastic extrusion. The first hose for supply of the first component during at least a substantial part of the path to the extrusion head is arranged to enclose the second hose for supply of the second component.

Cette invention concerne une méthode et un dispositif d'équilibrage de la pression dans deux flexibles d'alimentation acheminant deux composés différents vers une tête d'extrusion, le flux du premier composé étant sensiblement sous le flux du second, par exemple en extrusion de plastique thermodurcissable. Le premier flexible est disposé, au moins sur une partie appréciable du trajet vers la tête d'extrusion, autour du second flexible.

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