CONTINUOUS CASTING OF MOLTEN METAL

摘要

A tundish sliding gate valve and nozzle change-over assembly for use in a continuous caster is disclosed. The assembly comprises a sliding gate valve (9) for controlling the flow of molten metal from a tundish to a continuous casting mould. The sliding gate valve (9) comprises upper and lower fixed plates (11, 13) and an intermediate sliding plate (15), each of the plates having apertures for molten metal. The assembly further comprises a change-over assembly connected to the lower plate (13) to support a nozzle (7) in the operative position and to move the nozzle (7) into and from the operative position. The change-over assembly comprises a means to bias a nozzle (7) against the sliding gate valve (9) so that there is a fluid tight seal and so that the biasing force is isolated from the upper plate (11) and the sliding plate (15) and therefore does not affect the operation of the sliding gate valve (9).