GB464818A - Improvements in or relating to apparatus for manufacturing long thin pieces of hot rolled metallic strip - Google Patents

Abstract

464,818. Rolling strip. STEVENS, A. H. (United Engineering & Foundry Co.) Oct. 16, 1936, No. 28165. [Class 83 (iv)] A slab is rolled to strip thickness in a reversing twohigh rolling mill or a threehigh mill provided with receiving furnaces 8, 9, at each side of the mill which receives the strip flat, or perhaps slightly looped, but without coiling. A slab about 4' x 8' x 4" thick passes from initial furnaces 1 by .delivery tables 2, 2a through a two-high universal reversing mill 3 back and forth until reduced to about À7" and 46'. long and then is reheated in furnaces 8 and 9 at each side of a three-high intermediate mill 6 (or a two-high reversing mill, Fig. 3 (not shown)). The furnaces 8, 9 have baffles 8a with inclined strip-directing ends and the strip is directed in and out of the furnaces and back and forth through the rolls 6 by tables 11, 12 tilted when required by levers 14 and motors 18, the strip end being retained between the feed rollers 22 or 23 to feed back after it has passed out of the rolls at each pass, the strip being reduced to about À22". The strip is then directed to pass over the conveyer table 7 to a four-high mill 26 reducing it to À16" and then is transferred over a cooling bed 28 to a continuous pickler 31 and then through four-high tandem cold mills 32, 33 which reduces it to about À0625". It is then either coiled in a three-roll coiler 34 or cropped in flying shears 36 and piled in sheets as 37. The tops of the furnaces are built in removable sections to provide access to the inside ; the bottom of the furnace inclines up towards the mill and inclined baffles 8a, 9a are provided inside.