Starteinrichtung für Stranggiessanlage

摘要

1,194,882. Continuous casting. E. W. BLISS CO. 11 May, 1967 [11 May, 1966], No. 21904/67. Heading B3F. In a curved type continuous casting machine in which a controlled flow of molten metal is fed into a mould M from a tundish B, a flexible starter bar E is provided which is releasably connected to a starter head 34, for initiating the ingot withdrawal and which is disconnected from the subsequently formed ingot I and conveyed along a path different from that of the ingot, into a storage position. The starter bar E is conveyed into the storage position on rollers 36 by a winding drum 32 which engages the starter bar by means of a rope 31. Prior to the commencement of a casting operation the starter bar is fed by power driven rollers 441, 451, against the tension in the rope 31 created by the winding drum, to a position in which the starter head plugs the bottom of the mould M. A releasing mechanism is provided between the starter bar and starter head which comprises a toggle (73-75) actuated plunger 70 at the end of the starter bar engaging radially displaceable balls 71 which when located in the starter head engage recesses 72 to secure the head to the bar. The bar is released from the head when the casting ingot has passed into the withdrawal and straightening device F having withdrawal rollers 40, 41 and in which rollers 53 engage cam means 75 on the toggle mechanism to actuate the plunger for the release of the starter head. The starter bar is then rapidly removed to its storage position and the cast ingot is straightened and passed to a cut of device G. The ingot is cooled by sprays J as it traverses its curved path within the support roller apron D. Reference has been directed by the Comptroller to Specification 1,037,569.