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AssigneesThyssenKrupp Steel Europe AG, thyssenkrupp AG
InventorsThomas Flehmig, Dieter Scheuvens, Lothar Hömig
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The present invention relates to a device for partial decoating and/or machining removal of a steel sheet coated with a metal coating and/or provided with a parasitic layer, wherein the device has a machining tool in the form of a scraping roller and wherein the scraping roller comprises a cutting edge for scraping the metal coating and/or parasitic layer off the steel-sheet surface, and wherein furthermore the scraping roller is rotatable about a rotation axis perpendicular to a main plane of extent of the steel sheet, the scraping roller has a circumferential face which is concentric with the rotation axis and in which at least one circumferential groove is formed, the groove has two lateral groove boundary faces that originate from the groove bottom face, wherein at least one of the two groove boundary faces has the cutting edge and the device is configured such that during decoating and/or machining removal, the at least one cutting edge scrapes over the steel-sheet edge in a manner parallel to the main plane of extent of the steel sheet.
A device for partial decoating and/or machining removal of a steel sheet coated with a metal coating and/or provided with a parasitic layer, the device comprising a machining tool in the form of a scraping roller, wherein the scraping roller comprises cutting edges configured to scrape the metal coating and/or parasitic layer off surfaces of the steel sheet, wherein the scraping roller is rotatable about a rotation axis that is perpendicular to a main surface plane of the steel sheet, wherein the scraping roller comprises a circumferential face that is concentric with the rotation axis and in which at least one circumferential groove is formed, wherein the at least one circumferential groove includes two lateral groove boundary faces that originate from a groove bottom face, wherein each of the two lateral groove boundary faces includes one of the cutting edges, wherein during decoating and/or machining removal the cutting edges are configured over a steel-sheet edge in a manner parallel to the main surface plane of the steel sheet for scraping both sides of the steel sheet.
A method for the partial decoating and/or machining of a steel sheet coated with a metal coating and/or provided with a parasitic layer, the method comprising:
A device for partial decoating and/or machining removal of a steel sheet coated with a metal coating and/or provided with a parasitic layer, the device comprising a scraping roller that comprises a cutting edge configured to scrape the metal coating and/or parasitic layer off a surface of the steel sheet, wherein the scraping roller is rotatable about a rotation axis that is perpendicular to a main surface plane of the steel sheet, wherein the scraping roller comprises a circumferential face that is concentric with the rotation axis and in which a circumferential groove is formed, wherein the circumferential groove includes two lateral groove boundary faces that originate from a groove bottom face, wherein the cutting edge is formed by an acute angle between the circumferential face and at least one of the two lateral groove boundary faces, wherein during decoating and/or machining removal the cutting edge is configured along a steel-sheet edge in a manner parallel to the main surface plane of the steel sheet for scraping a side of the steel sheet.
Dependencies are inferred from the claim text.