ARTICLE EN FONTE D'ACIER COMPRENANT UN REVETEMENT VITREUX ET PROCEDE DE FABRICATION D'UN TEL ARTICLE

La présente invention concerne un article, notamment culinaire, comprend un support en fonte d'acier présentant deux faces opposées. Selon l'invention, l'article comporte un revêtement vitreux se présentant sous la forme d'au moins une couche continue d'un matériau sol-gel comprenant une matrice formée à partir d'au moins un polyalcoxylate métallique et au moins une huile de silicone réactive ou non, la couche de matériau sol-gel étant disposée directement sur l'une au moins des faces dudit support, et la face munie d'un revêtement vitreux présente une rugosité de surface Ra comprise entre 3 et 15 µm avec un nombre de pics par centimètre RPc compris entre 50 et 200. La présente invention concerne également un procédé de fabrication d'un tel article. The article comprises a cast iron support having two opposite sides with a vitreous coating in the form of a continuous layer of a sol-gel material including a matrix formed from a metal polyalkoxylate and a reactive or unreactive silicone oil. The layer of sol-gel material is directly deposited on one of the sides of the support, where the side provided with the vitreous coating has a surface roughness (Ra) of 3-15 mu m. The vitreous coating successively comprises a first continuous pigmented and/or flaky layer of sol-gel material directly arranged on one of the sides of the support. The article comprises a cast iron support having two opposite sides with a vitreous coating in the form of a continuous layer of a sol-gel material including a matrix formed from a metal polyalkoxylate and a reactive or unreactive silicone oil. The layer of sol-gel material is directly deposited on one of the sides of the support, where the side provided with the vitreous coating has a surface roughness (Ra) of 3-15 mu m with a peak count per centimeter (RPc) of 90 and 120. The silicone oil has a kinematic viscosity of 10-1000 10 -> 6> m 2>s -> 1> at 20[deg] C. The vitreous coating successively comprises a first continuous pigmented and/or flaky layer of sol-gel material directly arranged on one of the sides of the support and covered with a second continuous and transparent layer of sol-gel material, where the sol-gel materials of the first and second layers are identical or different and each comprises a matrix formed based on the metal polyalkoxylate and the reactive or unreactive silicone oil, where the pigment of the first layer is thermally-stable pigments, metal salts and/or thermochrome semi-conductive pigments. The articl