GB1421185A - Apparatus for continuously casting metal strip - Google Patents

Abstract

1421185 Continuous casting JONES & LAUGHLIN STEEL CORP 2 March 1973 [12 April 1972] 10320/73 Heading B3F A metal strip 10, continuously cast on the inner surface 11 of a rotating ring 12, e.g. between the surface 11 and a coolant-containing roll 14, is guided out of the ring and has its curvature gradually increased as it separates from the ring by means (such as three assemblies 18, 19, 20 of paired rolls 23, 25) adjusted so that the strip edge which emerges first has its curvature increased less than does the lateremerging edge; these curvatures then gradually decrease so that the strip 10 travels in a spiral path on the surface of an imaginary cone (see generators 40, 41) whose axis passes through the ring 12. Driven pinch rolls 43, 44 equalize the edge-curvatures and may guide the strip on a straight path. The outer face of the ring 12 is water-sprayed. Each roll 23 or 25 of a pair rotates on a spindle cantilevered from a mounting 27 by which the pair can be adjustably swung, by a remotelycontrolled pneumatic cylinder to vary the gap between the rolls for the passage of the cast strip 10. The outer rolls 23 have inclined-face end flanges in correspondence to similar edgeflanges 16 on the wheel 12 while the inner rolls 25 have bevelled ends to fit edge-flanges formed on the strip. One or both of the rolls 23, 25 may be driven in some or all of the pairs. A dummy strip or fixed auxiliary guides may lead the strip into the guide-roll pairs. The roll assemblies 18, 19, 20 are mounted on a framework projecting into the ring 12 and their angles are adjusted as required. The assemblies are positioned so that their portions which are inside the ring are successively smaller.