METHOD OF COOLING AND GUIDING CIRCULATION TYPE CASTING BELT IN METAL STRIP CONTINUOUS CASTING FACILITY AND COOLING AND GUIDE APPARATUS

摘要

The mould belt (20) is not only cooled using a cooling fluid but, at the same time, also held and guided in a stable manner at a small distance from a guide plate (13) by hydrostatic forces produced by this fluid. For this purpose, the cooling fluid is guided into a multiplicity of small pockets (56) in the surface of the guide plate (13), in which pockets hydrostatic forces dependent on the distance between the mould belt (20) and the rim of the pocket (56) are established. Outlet openings (58, 21) in the guide plate (13) give rise to a negative pressure on the mould belt (20) outside the pockets (56). The belt can, in addition, be pulled against the guide plate (13) by magnetic forces. The hydrostatically guided mould belt (20) can have mechanical vibrations imparted to it perpendicularly to its plane, either electromagnetically or by a pulsating supply of fluid, in order, if desired, to reduce the heat transfer from the cast material to the mould belt at least at certain points. IMAGE