| 摘要 |
An adjustable descaling device for a rolling mill for rolling a metal product comprises one or more descalers (13a, 13b, 14a, 14b), at least one scale detection sensor (17, 18); and a processor (19). The sensor detects (42) a scale pattern, particularly stripes, on a surface of the metal product following descaling; and the processor may compare the detected scale pattern for correlation with a stored pattern and may adjust the descaler when the correlation is above a threshold. A single sensor may detect scale patterns on opposing surfaces of the metal product. Adjustment of the descaler may be by adjustment of its distance from the surface to be descaled or by adjusting its descaling pressure. A 1-D Rosenbrock type algorithm may be used. The correlation pattern preferably comprises a representation of nozzle pitch of a header of the descaler. Compensation may be made for width spread during rolling. The correlation system may be calibrated in a test measurement stage. |
