Treatment of hot rolling stock made of metal

A treatment device for hot rolling a rolling stock made of metal, the treatment device comprising:

• at least one roll stand in which the rolling stock is rolled,
• a cooling section which is arranged downstream of the at least one roll stand in a direction of rolling of the rolling stock and the cooling section is operative for cooling the rolling stock,
• a sound generator arrangement for generating sound,
• a coupling device by which the sound generated by the sound generator arrangement is coupled into the rolling stock for forming a standing sound wave at least in a region of the rolling stock that is located in the vicinity of the coupling device, and
• a control device configured to receive setpoint properties (P*) of the rolling stock, configured to determine at least one control variable (C) to control the sound generator arrangement in dependence on the set point properties (P*), and configured to feed the at least one control variable (C) to the sound generator arrangement.