GB1273701A - Improvements in guidance of continuous castings through a secondary cooling zone - Google Patents

Abstract

1,273,701. Roller conveyers. CONCAST A.G. 12 May, 1970 [13 May, 1969], No. 23028/70. Heading B8A. [Also in Division B3] To avoid overloading of individual rollers and permit adaptation to shape changes of the cast strand, a roller guideway which defines curved tracks 18, 19 for guiding opposite sides of the strand in an arcuate-path plant, is divided into a number of segments (one segment 13 is here shown) and at least part of one track in at least one of the segments is defined by at least two rollers 14 or 15 which are mounted in a pivotable yoke 22 or 28. The guideway is part of a secondary cooling zone in which it follows cooling-plates (10). In one or more of the segments, the yoke 22 of rollers 14 of the outside track 18 is pivoted on a fixed support 24 and a pivotable yoke 28 of rollers 15 of the inside track 19 is supported at each end by a piston- and-cylinder unit 31, Fig. 3, so that it is displaceable perpendicularly to the strand surface for adjustment and may permit a limited bulging of the strand. Stops 32, 33 limit the pivoting movement of the yokes 28, 22 and the displacement of yoke 28 towards the yoke 22. Other segments (12) have at least three, e.g. five rollers (14, 15) defining part of each track (18, 19), the rollers (15) of the inside track being mounted in a yoke (36) pivotable in slide blocks (38) at each end, displaceable by piston-andcylinder circuits (42). Alternatively, the track (18) may be displaceable instead of the track (19). The three inner rollers (15<SP>1</SP>) are movable radially of the strand and are spring- or fluidloaded. The arrangements may be used on a horizontal run downstream of a withdrawing and straightening unit (5). The rollers 14, 15 in some segments may be jointly displaceable.