Operating method for a reversing rolling mill having at least one reversing rolling stand (2) for rolling a rolled metal stock (5), wherein the stock (5) passes the at least one reversing rolling stand (2) in a sequence of alternating direction passes (7) and after each pass, the stock is wound up by a reversing reel (3, 4), wherein only rolling oil, without water as a carrier medium, is applied to the stock (5) by rolling-oil applicator (6), between the at least one reversing rolling stand (2) and the winding-up reel (31, 41).

Operating method for a reversing rolling mill having at least one reversing rolling stand (2) for rolling a rolled metal stock (5), wherein the stock (5) passes the at least one reversing rolling stand (2) in a sequence of alternating direction passes (7) and after each pass, the stock is wound up by a reversing reel (3, 4), wherein only rolling oil, without water as a carrier medium, is applied to the stock (5) by rolling-oil applicator (6), between the at least one reversing rolling stand (2) and the winding-up reel (31, 41).

A flexible conversion method of a reversible rolling mill having at least one rolling stand erected on first civil works foundations and a first production capacity, into an upgraded rolling mill having more than one rolling stand and a second production capacity, the second production capacity being higher than the first production capacity, the reversible rolling mill including: an uncoiling device or pay-off reel and a first recoiling device or entry tension reel on a first side or entry side of the stand; a second recoiling device or delivery tension reel on a second side or delivery side of the stand; standard auxiliary and operation equipment necessary for normal operation and control of the reversible rolling mill, the standard auxiliary and operation equipment necessary for normal operation and control of the reversible rolling mill including mainly or at least a roll coolant tank, pumps, filters, heat exchangers and piping.

A flexible conversion method of a reversible rolling mill having at least one rolling stand erected on first civil works foundations and a first production capacity, into an upgraded rolling mill having more than one rolling stand and a second production capacity, the second production capacity being higher than the first production capacity, the reversible rolling mill including: an uncoiling device or pay-off reel and a first recoiling device or entry tension reel on a first side or entry side of the stand; a second recoiling device or delivery tension reel on a second side or delivery side of the stand; standard auxiliary and operation equipment necessary for normal operation and control of the reversible rolling mill, the standard auxiliary and operation equipment necessary for normal operation and control of the reversible rolling mill including mainly or at least a roll coolant tank, pumps, filters, heat exchangers and piping.

Provided is a grain-oriented electrical steel sheet, the core loss characteristics of which have been significantly improved without causing a deterioration in magnetic flux density. The grain-oriented electrical steel sheet: comprises 2.5-3.5% by mass of Si with the balance being Fe and inevitable impurities; has a sheet thickness of 0.18-0.35 mm; has a metallographic structure including matrix grains of Goss-oriented secondary recrystallized grains after secondary-recrystallized annealing, wherein Goss-oriented crystal grains existing in the matrix and having a major (long) diameter of 5 mm or smaller exist in the metallographic structure at a frequency of 1.5 grains/cm.sup.2 to 8 grains/cm.sup.2; and has a magnetic flux density B8 of 1.88T or greater. As for the orientations of the Goss-oriented crystal grains having a major (long) diameter of 5 mm or smaller, the <100> orientation of the Goss-oriented crystal grains deviate from the rolling direction by an angle of 7 degrees or smaller and by an angle of 5 degrees or smaller in terms of a simple average of an α angle and that of a ß angle, respectively.

α angle; the angle formed by the longitudinal direction and the projection of the [001] on specimen surface, and
ß angle; the tilt of the [001] out of the specimen surface

A device for cooling rolled stock, preferably for cooling during cold rolling, including a nozzle for applying a cooling medium to the rolled stock, wherein a cooling chamber that is in fluid communication with the nozzle and extends substantially parallel to the strip running plane is provided for applying the cooling medium to the rolled stock.