Method of controlling product tension in a rolling mill

Details Method of controlling product tension in a rolling mill Method of controlling product tension in a rolling mill

B - Operations, Transporting

21

B

341/44.2

B21B 37/52 (2006.01) B21B 1/18 (2006.01) B21B 39/00 (2006.01) B21B 45/02 (2006.01)

Patent

CA 1279712

ABSTRACT OF THE DISCLOSURE In a rolling mill wherein product is rolled continuously in successive first and second blocks at the finishing end of the mill, a pinch roll unit is interposed between the two blocks. The motor speed of the pinch roll unit is employed in combination with other variables to preset the motor speed of the second block prior to entry of the product front end therein. The preset motor speed of the second block produces an acceptable level of interblock product tension once the product has entered the second block. Thereafter, product elongation in the first block is monitored and required adjustments to the motor speed of the second block are made in order to maintain interblock product tension within acceptable limits.

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