Forced jet convection oven for vacuum bagging

Details Forced jet convection oven for vacuum bagging Forced jet convection oven for vacuum bagging

1989-08-23

1990-09-18

Bennet, Henry A.

Heating

Advancing structure flexing, looping or coiling sheet, web...

432 8, 432152, 34 66, F27B 516

Patent

active

049574329

ABSTRACT:
A forced jet convection oven is utilized to practice a vacuum bagging process for the production of thermoplastic composite laminates containing reinforcing fiber. The oven comprises a support suitable for supporting a panel wherein said support means is positioned in the oven with the upper surface of the support means being spaced apart from the oven ceiling to define a panel-receiving chamber between the upper surface of the support means and the oven ceiling, a first manifold means having a first multiplicity of outlets directed toward the upper surface of the support means wherein said first manifold means is positioned between the upper surface of the support means and the oven ceiling; and a second manifold means having a second multiplicity of outlets directed toward the upper surface of the support means wherein said second manifold means is positioned between the upper surface of the support means and the oven floor. In one embodiment, the support means comprises a plurality of parallel bars mounted across the oven floor wherein portions of the second manifold means are positioned between and below the parallel bars, and the first and second manifold means each comprise a plurality of branches extending in a direction generally parallel to the plurality of parallel bars forming the support means. In a second embodiment, the oven further comprises a third manifold means having a third multiplicity of outlets directed toward the upper surface of the support means wherein said third manifold means is positioned generally circumferentially around the first manifold means between the first manifold means and the oven perimeter.

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