GB1369629A - Continuous casting plant - Google Patents

Abstract

1369629 Continuous casting SCHLOEMANN AG 14 Dec 1971 [14 Dec 1970] 58110/71 Heading B3F A continuous casting plant includes a pair of mould-and-guide units 23, 20 supported on a turntable 9 adjacent a fixed guide apron, e.g. of rolls mounted in sections 5, the units each comprising a mould 23 and a guide 20 assembled together so that by rotation of the turntable 9, for instance with the units swung up (as indicated in chain lines) to cover a smaller area, either unit can be moved into alignment with the fixed apron 5, 5 for casting while the other unit is accessible for adjustment for casting cross-section, for replacement, or for repair. Each guide 20 has guiding plates 21 and rollers 22. It also carries small rollers (26), at the ends, running between rails (27) on the inside of an inverted saddle 24 on which rests the mould 23. The mould-and-guide units 23, 20 each bridge a pair of arms 15 or 16 on which they are supported and which are pivoted on pins (13, 14) on opposite sides of the turntable 9 so that they can be swung up as indicated, by pairs of hydraulic cylinders (34, 35) carried by the turntable 9. Trunnions (19) of the guides 20 are received in recesses (17, 18) in the arms 15, 16. Each mould-saddle 24 is suspended at either side by a pair of upper links (28) pivoted to an arm 15 or 16 and by a pair of lower levers (29) or (30) attached to a rotatable shaft 31 extending between the pair of arms 15 or 16 and connected to the arm by an interposed pneumatic spring (33). For reciprocating a unit 23, 20 during casting, when the unit is lowered, an open slot 41 on a lever 42 on the shaft 31 engages a pin 40 on a lever 39 mounted on a platform 6 (which bears the turntable 9) to transmit the movement of an eccentric 36 and arm 38. Also, when a unit-is lowered, pipes for passing water to and from the mould 23 are automatically coupled to pipes (44, 45) on the platform 6 through valves (43) which close themselves when the unit is raised. A box-section member 2, which carries the platform 6 and to which a frame 4 bearing the guide apron sections 5, 5 is secured, has trunnions 3 for pivotal support on the framework of the casting machine, so that a mould-and-guide unit 23, 20 is not displaced relatively to the guide apron when expansion occurs. There may be a twin-strand casting machine, Fig. 4 (not shown), for simultaneous casting of two strands. To allow a tundish carriage, running on tracks (49) on the casting platform, to run across a turntable 9, the arms 15, 16 carry track sections (48) which align with the main track when an arm is lowered.