Vacuum heat insulator, and refrigerator, car, and building...

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 59/05 (2006.01) C03C 13/06 (2006.01) F16L 59/02 (2006.01) F16L 59/065 (2006.01)

Patent

CA 2624284

The object of the present invention is to provide a vacuum heat insulator using a core member formed without any binder. The vacuum heat insulator is constructed by enclosing the core material with an enveloping material which is formed by a rigid or flexible plastic sheet, a film to which a metal foil or a metal coating is deposited, or the like. The core material is formed by fiberizing a glass material with a melting centrifugal method, applying water by spraying on glass wool which has just been fiberized, cutting both ends of the glass wool aggregated on a conveyor so as to prepare a glass wool chip, laminating the glass wool chips and compressing so as to form a glass wool mat, and conducting heating press forming to the glass wool mat.

L'objet de la présente invention est de proposer un isolant thermique à vide utilisant un élément de cAEur exempt de tout liant. L'isolant thermique à vide est construit en enfermant le matériau de cAEur avec un matériau enveloppant formé d'une feuille de plastique rigide ou souple, d'un film sur lequel une feuille métallique ou un revêtement métallique est déposé, ou d'un matériau similaire. Le matériau de cAEur est formé en effilochant un matériau en verre par un procédé de fusion centrifuge, en appliquant de l'eau par pulvérisation sur la laine de verre qui vient d'être effilochée, en coupant les deux extrémités de la laine de verre agrégées sur un convoyeur de façon à préparer une plaquette de laine de verre, en stratifiant les plaquettes de laine de verre et en les comprimant de façon à former un tapis de laine de verre, et en effectuant un formage par pressage à chaud du tapis de laine de verre.

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