Method for orienting steel sheet grains, corresponding device, and facility implementing said method or device

A method of accentuating an orientation of grains of a steel sheet, the method comprising:

• moving the steel sheet through a furnace in a longitudinal direction of the steel sheet, the steel sheet comprising a grain oriented magnetic steel sheet;
• and
• stretching the steel sheet longitudinally in a stretch region by bringing the steel sheet into driving engagement with a first motorized tensioning block and a second motorized tensioning block, the stretch region being between the first motorized tensioning block and the second motorized tensioning block, each of the first and second motorized tensioning blocks being situated in the furnace and each comprising a plurality of traction rolls, each traction roll engaging the steel sheet;
• wherein the first motorized tensioning block and the second motorized tensioning block effectuate a stretch in the steel sheet from 3.2% to 10%.

A method of accentuating an orientation of grains of a steel sheet, the method comprising:

• moving the steel sheet through a furnace in a longitudinal direction of the steel sheet, the steel sheet comprising a grain oriented magnetic steel sheet;
• and
• stretching the steel sheet longitudinally in a stretch region by bringing the steel sheet into driving engagement with a first motorized tensioning block and a second motorized tensioning block, the stretch region being between the first motorized tensioning block and the second motorized tensioning block, each of the first and second motorized tensioning blocks being situated in the furnace and each comprising a plurality of traction rolls, each traction roll engaging the steel sheet;
• wherein the first and second motorized tensioning blocks are controlled to apply to the steel sheet a tension in the stretch region from 34 MPa to 58 MPa at 750° C.