Plate, in particular covering plate for molten metal, and method for producing the plate and use thereof
AssigneeRefratechnik Holding GmbH
InventorsHelge Jansen, Thomas Schemmel, Petra Stein, Michael Schölwer
Life of this patent
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Abstract
A heat insulating plate (1), preferably a covering plate (5a;b), especially for thermal isolation of molten metal, especially of molten steel, in a metallurgical vessel (6), wherein the plate (3) includes a binding agent matrix (2) of at least one, set, temporary, organic binding material and aggregate grains (3) with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains (3) are incorporated into the binding agent matrix (2), and to a method for production of the plate (1) and its use.
Claims40
A heat insulating plate for isolating or thermally insulating a metal bath comprising molten metal in a metallurgical vessel, wherein the plate is configured to transform into a covering layer capable of isolating or thermally insulating the metal bath or a metal solidified therefrom, the plate comprising a binding agent matrix of at least one set binding material in which aggregate grains of biogenic silicic acid are incorporated, wherein as additional aggregate material, the plate comprises at least one expanding agent in unexpanded form, the expanding agent configured to expand under temperature load, such that the plate disintegrates into the covering layer comprising a loose, free-flowing bulk material, at the latest upon direct contact with the metal bath;
- wherein the isolation or thermal insulation of the metal bath and the metal solidified therefrom is provided by the heat insulating plate or the covering layer.
Dependencies are inferred from the claim text.