GB1161983A - Machines for Continuously Casting Metal - Google Patents

Abstract

1,161,983. Continuous casting. UNITED STEEL COMPANIES Ltd. 10 March, 1967 [15 March, 1966], No. 11298/66. Heading B3F. A starter bar 15 which may be rigid or composed of pivoted plates 16 with rods (17) threaded through them as described in Specification 998,796 is attached at each side to one of two cables or chains 23 of a reversible drive so that it can be moved, from a top position where a detachable head (19) coupled to it seals a mould 1, down through a roller cage unit 3 and main guide rollers 7 in a circular arc, through a fulcrum roller in a stand 9 and straightenerwithdrawal rolls 11, 12 to a resting position on a plate 33 (which may be upwardly instead of downwardly inclined as shown). In the cage unit 3 there are rollers on four sides of the strand. The main guide rollers 7 have an edge flange (14), Fig. 3 (not shown), for lateral guiding, as in Specification 1,154,587. A tailpiece 20 on the starter bar 15 carries a rod by whose ends transverse members (21) the bar is secured to the chains 23. For heavy slabs the chains may be roller type with rail support. The endless chains 23 pass over and under wheels 24-27 and a tensioning pulley 28. The drive wheels 24 are driven by a motor (30), Fig. 2 (not shown), which drives the straightenerwithdrawal unit (10) whose upper rolls are raised for upward feed of the starter bars 15 before casting. On casting, the unit 10 operates after the bar has passed back down and the detached bar is drawn to the position shown, off the strand track.