METHOD TO CONTROL ROLLING MILL STAND LAYING COILER SPEED Russian patent published in 2010 - IPC B21C47/14 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, namely to rolling mills and can be used for forming and laying coils of rods or wire on conveyor. Proposed method comprises controlling the speed of bent rotated tube, feeding transferred billet through said tube that forms spiral coils. Tube comprises bent intermediate section with rotational radius, measured from laying tube rotational axis, gradually increasing, and bent feed section with permanent maximum radius R of its rotation at the points of its joint with feed section. Radius R is measured from tube center, while tube wall has maximum and minimum radii of rotation R_max and R_min at this point. Proposed method comprises measuring radii of rotation R_max and R_min, continuous measuring billet speed V_p and controlling laying tube rotation speed to make laying tube circumferential speeds V_max, V_min at respective rotational radii R_max and R_min defining the range that includes billet speed V_p.

EFFECT: uniform cooling ensured by optimum relationship between billet and speed and laying coiler speed.

4 cl, 5 dwg