Metal ladle cover, coupling assembly parts kit for coupling said ladle cover to a ladle, metal casting installation and coupling procedure

摘要

Cover (111) for casting metal from a spoon, said bucket comprising: (a) a perforation (115) extending parallel to a first longitudinal axis, X1, from an inlet hole (115a) to an outlet hole ( 115b), (b) an inlet part located at an upstream end of the bucket cover and consisting of a plate comprising: - a flat upstream surface (2u) normal to said longitudinal axis, X1, said surface comprising upstream said inlet opening (115a) and being defined by an upstream perimeter (2p), - a downstream surface (4d) defined by a downstream perimeter (4p) and separated from the upstream surface by, - a wall peripheral contiguous with both perimeters upstream (2p) and downstream (4p) that define the thickness of the plate at the level of the upstream perimeter (2p), and which comprises at least some first and second grip parts separated from each other by drilling (115), (c) a tub part ular extending along said first longitudinal axis, X1, from said downstream surface (4d) of the inlet part to a downstream end, opposite the upstream end, and in which said outlet port is located (115b), characterized in that, each of said first and second grip parts of the peripheral wall comprises an upstream (3) projection culminating in an upstream ridge (3r) that separates an leading edge (3u) oriented towards the upstream end of the bucket cover of an exit edge (3d) facing the downstream end of the bucket cover, and protruding outwardly beyond the entire peripheral wall of the corresponding gripping part, said upstream parts (3) extending parallel to the upstream surface (2u) and symmetrically with each other with respect to the longitudinal axis, X1, along the respective first and second gripping portions and because, - said bor of attack (3u) forms an angle parallel to the upstream surface, α1, and - said trailing edge (3d) forms an angle, β1, with a plane parallel to the upstream surface (2u), in the one that | α1 | = | β1 |.