Patent classifications
B21B2261/00
Rolling mill with rolling dependent on material properties
A rolling mill has a rolling stand (1) in which a flat rolled product (2) composed of metal is rolled. A sensor device (6), which detects at least one measured variable (M) characteristic of a material property of the flat rolled product (2), is arranged upstream and/or downstream of the rolling stand (1). The material property can be, in particular, an electromagnetic property or a mechanical property of the rolled product (2). The sensor device (6) transfers the detected measured variable (M) to a control device (9) for the rolling mill. Taking into account the measured variable (M), the control device (9) determines a control value (A) for the rolling stand (1). The control of the rolling stand (1) influences the material property of the flat rolled product (2). The control value (A) is a ratio of the peripheral speeds (vO, vU) at which the upper and the lower working rolls (3, 4) of the rolling stand (1) rotate.
ROLLING MILL WITH ROLLING DEPENDENT ON MATERIAL PROPERTIES
A rolling mill has a rolling stand (1) in which a flat rolled product (2) composed of metal is rolled. A sensor device (6), which detects at least one measured variable (M) characteristic of a material property of the flat rolled product (2), is arranged upstream and/or downstream of the rolling stand (1). The material property can be, in particular, an electromagnetic property or a mechanical property of the rolled product (2). The sensor device (6) transfers the detected measured variable (M) to a control device (9) for the rolling mill. Taking into account the measured variable (M), the control device (9) determines a control value (A) for the rolling stand (1). The control of the rolling stand (1) influences the material property of the flat rolled product (2). The control value (A) is a ratio of the peripheral speeds (vO, vU) at which the upper and the lower working rolls (3, 4) of the rolling stand (1) rotate.
METHOD FOR MANUFACTURING PLATED STEEL SHEET HAVING EXCELLENT CLARITY OF IMAGE AFTER COATING, AND PLATED STEEL SHEET MANUFACTURED THEREBY
Provided is a method of manufacturing a plated steel sheet having excellent image clarity after coating. The method includes: providing a cold rolled steel sheet by cold rolling; plating the cold rolled steel sheet to manufacture a plated steel sheet; and temper rolling the plated steel sheet by inserting the plated steel sheet into a temper rolling mill. A long-wavelength waviness (Wsa1-5) of a final stand rolling roll is 0.4 m or less (not including 0) during the cold rolling.