Control method for rolling thick head of thin strip steel

The control method for rolling thick head of thin strip steel includes the following technological steps: calculating the gate setting value in the secondary computer, sending the gate data, judging the steel sheet thickness in the primary computer while the head of strip steel enters to the rolling mill, determining the thickness ratio coefficient and thick head wedge coefficient if h<0.5mm, calculating the transmission coefficient of the frame, calculating the frame speeds, regulating transmission system, generating thick head, maintaining the thick head value, regulating the reverse transmission system and ending the head rolling. The present invention adopts dynamic head specification varying technology and dynamic wedge technology to raise the inner diameter strength of steel coil, and is suitable for rolling thin material in combined cold rolling unit.