3. Manufacturing processes

3.1 Situation

There are three main processes for creating a sandwich structure on steel cladding:
- process corresponds to injected panels. The core is generally a polyurethane foam. This polymer is expanded in situ between two flat or profiled facings. As it expands, the foam spontaneously adheres to the skins. These thermal insulation panels can be manufactured in continuous or discontinuous form, and are mainly intended for the building industry (cladding, roofing, partitions, etc.). In many cases, the foam is applied to the back of a pre-lacquered metal sheet, so that the foam is in contact with the reverse side of the organic strip (figure

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Manufacturing processes

(1) - XIAO (X.), HSIUNG (C.K.), ZHOA (Z.) - Analysis and modelling of flexural deformation of laminated steel - Int. J. of Mechanical Sciences, vol. 50, p. 69-82 (2008).
(2) - PALKOWSKI (H.), LANGE (G.) - Production of tailored high strength hybrid sandwich...

European Sandwich Panel Association (Panels and Profiles Association)

Association Professionnelle EURIMA (European Insulation Manufacturers Association)

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Revêtements par galvanisation à chaud sur produits finis en fonte et en acier. - NF EN ISO 1461. A91-121. - Juillet 2009
Revêtements métalliques et autres revêtements inorganiques. Traitement de surface, revêtements métalliques et autres revêtements inorganiques. - NF EN ISO 2080. A91-013. - Août 2009
Tôles prélaquées. Méthodes d'essai. - NF EN 13523. - Juillet 2010
Self-supporting double skin...