Abstract: The present invention relates to a process for reinforcing a glass-ceramic article, into which a maximum tension is introduced beneath the surface of the glass-ceramic, advantageously in proximity to said surface. The invention also relates to an enamel that can be used for this reinforcement, this enamel being formed from a glass frit having the following composition, the proportions being expressed as weight percentages: SiO2 50-66%? MgO 3-8% Na2O 7-15%? K2O 0-3% Li2O 0-12%? CaO 0-10%? BaO 0-15%? Al2O3 0-3% ZrO2 0-3% ZnO 0-5% B2O3 0-8% the sum of the alkaline-earth metal oxides CaO+BaO moreover being between 8 and 15%, and the sum of the alkali metal oxides Na2O+K2O+Li2O moreover being between 7 and 20%. The invention also relates to the reinforced glass-ceramics obtained.

Abstract: A hob for a fixed or portable cooker, the hob including an end face, an upper cooking surface, and a frame made of a plastic or a blend of plastics extending over at least part of the periphery of the hob. The frame cooperates with the cooking surface such that an internal wall of the frame is set back towards the center of the hob relative to the end face of the hob.

Abstract: The present invention relates to a method of refining lithium aluminosilicate glass capable of being controllably ceramized and free of arsenic oxide, antimony oxide and tin oxide, in which at least 0.05% by weight of at least one sulfide is added to the glass batch materials and said materials are melted at a temperature below 1750° C. The invention also relates to the glass-ceramic obtained from said colored glass, especially glass colored by vanadium oxide. Application especially for the manufacture of cooktops and cooking utensils.

Abstract: The present invention relates to a glass-ceramic plate intended especially for covering heating elements and provided on at least one face with at least one enamel patch and/or at least one coat of paint, with the exception, where appropriate, of functional and/or decorative areas. The invention also relates to the process for manufacturing the plate and to the cooking appliance comprising said plate.

Abstract: The present invention relates to a glass-ceramic plate intended especially for covering heating elements and provided on at least one face with at least one enamel patch and/or at least one coat of paint, with the exception, where appropriate, of functional and/or decorative areas. The invention also relates to the process for manufacturing the plate and to the cooking appliance comprising said plate.

Abstract: This composition for treating the surface of a glass-ceramic, especially in plate form, flat glass or hollowware, or glass in the form of fibers, is able to be applied as a thin coating to said glass-ceramic or said glass.

Abstract: A glass-ceramic plate, and production methods and apparatuses in relation to the plate. The plate is designed for example to equip a cooktop, and includes, on at least one of its faces, a differentiated surface finish formed in the body of the bare glass-ceramic plate.

Abstract: The invention relates to a plate for fireplace insert or stove, or equivalent, formed from at least one substrate made of a glass material comprising at least one reflective coating on at least one of its faces. The invention also relates to the process for manufacturing the plate and to the device that includes said plate.

Abstract: A glass-ceramic plate, a method of manufacturing a glass-ceramic plate, and hubs equipped with the glass-ceramic plate. A flat or substantially flat glass-ceramic plate includes a surface provided with pegs, the plate configured to equip a hob. At least one smooth region, free of pegs, is reserved in a location designed to come, in a mounted position, face to face with one or more elements of the hob, the blurred view of which due to the pegs must be improved.

Abstract: The present invention relates to a glass-ceramic plate intended for example to cover or receive at least one heating element, in particular intended to serve as a cooking plate, said plate having a coating comprising at least two contrasted zones. The invention also relates to the method and device for producing the plate and cooking apparatus including said plate.

Abstract: A glass-ceramic plate, a method of manufacturing a glass-ceramic plate, and hubs equipped with the glass-ceramic plate. A flat or substantially flat glass-ceramic plate includes a surface provided with pegs, the plate configured to equip a hob. At least one smooth region, free of pegs, is reserved in a location designed to come, in a mounted position, face to face with one or more elements of the hob, the blurred view of which due to the pegs must be improved.

Abstract: The invention relates to a plate for fireplace insert or stove, or equivalent, formed from at least one substrate made of a glass material comprising at least one reflective coating on at least one of its faces. The invention also relates to the process for manufacturing the plate and to the device that includes said plate.

Abstract: The present invention relates to a glass-ceramic plate, intended notably to cover heating elements, and having at least one opening located within a local deformation of the plate, this opening being at a location other than a heating area and/or having at least one dimension greater than 10 cm and/or an angular and/or complex shape. The invention also relates to the process for manufacturing the plate and to the cooking appliance comprising said plate.

Abstract: A glass-ceramic plate, a method of manufacturing a glass-ceramic plate, and hubs equipped with the glass-ceramic plate. A flat or substantially flat glass-ceramic plate includes a surface provided with pegs, the plate configured to equip a hob. At least one smooth region, free of pegs, is reserved in a location designed to come, in a mounted position, face to face with one or more elements of the hob, the blurred view of which due to the pegs must be improved.

Abstract: A glass-ceramic plate intended in particular to cover heating elements, and having at least one bevel 35 mm or more wide, a method of manufacturing the plate, and a cooking appliance including the plate.