Casting mould, process and device for casting metal melts

Abstract

A casting mould is disclosed for manufacturing a casting from a metal melt (S) in a hollow moulding cavity (5) for reproducing a casting, and through an inlet for pouring a metal melt (M) into the hollow moulding cavity (5), as well as a device and a process for casting such metal melts. The disclosed casting mould also makes it possible to achieve a further optimised casting result, even in the hard operation conditions found in casting practice. Moreover, the use of the claimed device and process minimises the risk of jamming because of a pressure build-up during casting. This is achieved in that the casting mould comprises at least one compensation chamber (8, 9) linked to the moulding cavity (5) by a channel (10, 11) and having at least one section (8a, 9a) located above the maximum filling level (Fmax) of the casting mould (1) during the solidification of the metal melt (S).

Description

technical field [0001] The invention relates to a casting mold for producing castings from metal melts, for example light metal melts, in particular aluminum melts. The invention also relates to a device and a method for casting such metal melts into castings by using such casting moulds. Background technique [0002] One possibility for producing castings using casting molds of the type described above is so-called "contact casting". In such a casting method, the respective molds to be filled with melt are moved stepwise below a melt container containing the metal melt. A pouring opening is formed on the bottom of the container, which transitions into a supply channel, whose free end abuts the pouring opening of the corresponding mold. The outflow of the melt from the melt vessel is usually regulated here via a stopper, which can be moved from a completely lowered position (in which it closes the pour hole) to a raised position in which the pour hole is open And the melt...

AI Technical Summary

Problems solved by technology

[0004] Independently, for example, of carrying out mold filling with the simultaneous problem of the so-called "clogging shock" as complete filling is achieved

[0006] It has been shown in practice that, under the severe conditions present in actual casting operations, the mode of treatment described in DE 196 23 720 A1 still does not produce the required The reliability avoids undesired penetration of the inner wall of the mold

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