VACUUM INSULATION PANEL AND PROCESS OF MANUFACTURE

摘要

A process for manufacturing a vacuum insulation panel (VIP) comprising the steps of: providing a porous insulating core having an upper surface and a lower surface and sides; providing at least one metal foil having a thickness of at least 4 microns which extends across substantially the entire upper surface or entire lower surface of the core so that the foil does not form a thermal bridge between the upper surface and lower surface of the core; providing an envelope having an inside surface and an outside surface, wherein the envelope is arranged to: (i) envelop the core and the metal foil, with the metal foil between the envelope and the core, and (ii) to maintain an applied vacuum within the envelope; applying a vacuum to the envelope; attaching the metal foil to an inside surface of the envelope after the vacuum has been applied. The invention also relates to a VIP thus formed.