METHOD FOR PRODUCING A GRAIN-ORIENTED ELECTRICAL STEEL FLAT PRODUCT INTENDED FOR ELECTROTECHNICAL APPLICATIONS

The invention relates to a method for producing a grain-oriented steel flat product for electrotechnical applications, wherein, in a production step, "decarburising and nitriding annealing" is carried out in two stages. The first stage of the annealing process extends over a first time int...

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Bibliographische Detailangaben
Hauptverfasser:	KRENKE, THORSTEN, LAHN, LUDGER, HOLZAPFEL, CHRISTOF, SCHRAPERS, HEINER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing a grain-oriented steel flat product for electrotechnical applications, wherein, in a production step, "decarburising and nitriding annealing" is carried out in two stages. The first stage of the annealing process extends over a first time interval, which comprises heating the cold strip starting from a start temperature to a first target annealing temperature and holding it at this target annealing temperature, and the second stage of the annealing process extends over a second time interval, in which the cold strip is heated to a second target annealing temperature and subsequently held at this target annealing temperature.