GRAIN-ORIENTED ELECTRICAL STEEL STRIP AND METHOD FOR PRODUCING SUCH AN ELECTRICAL STEEL STRIP

• Main Authors: HECHT, Christian, ALLWARDT, Andreas, SCHRAPERS, Heiner, SCHEPERS, Carsten, LAHN, Ludger
• Format: Patent
• Language: English; French; German
• Published: 30.09.2020
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INDUCTANCES; MAGNETS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention relates to a grain-oriented electrical steel strip having a magnesium silicate layer on at least one surface, wherein at least one peak in the range of 960 to 975 cm-1 (A) and at least one peak in the range of 976 to 990 cm-1 are present in a DRIFT spectrum of the magnesium silicate layer, the peak height of the at least one peak in the range (A) being higher than the peak height of the at least one peak in the range (B), a method for the production thereof under particular atmospheric conditions in the annealing step and the use of such an electrical steel strip.