GB1302258A - - Google Patents

Abstract

1302258 Making strip metal; rolling MITSUBISHI ALUMINUM CO Ltd 27 May 1970 [3 June 1969] 25374/70 Headings B3A and B3M Apparatus for reshaping the edges of at least 98% pure aluminium strip as it moves from a supply coil 10 to a recoiler 11 comprises a plurality of three roll assemblies 3 to prevent thes trip buckling, and a plurality of sets of grooved rolls 4, the rolls 4 being mounted vertically and slidable transversely in the plane of the strip. The strip 5 is unwound from the coil 10 by the recoiler 11 and passes through the roll assemblies 3 and the sets of grooved edge shaping rolls 4. The grooves of the rolls can have either a V or U shape, the V-shaped groove forming an angle α (Fig. 6) above and below the horizontal centre line of the roll, while the U-shaped groove forms an angle # (Fig. 7) above and below the same line with its apex forming an arc of radius R. The valves for α, # and R are preferably 1-30 degrees, 1-20 degrees and 0À05-0À7 mm. respectively. Before the strip is recoiled it passes through a cleaning chamber 20, Fig. 5, in which the strip is sprayed with trichloroethylene from nozzles 21, brushed by circular brushes 22, passed through a pair of rubber rolls, and wiped by a rubber wiper 23.