Gate (foundry)
As gates are referred in the foundry part of a casting system, by which the respective material in the actual shape runs (hence feed ).
The gate cross-section depends on the mass and the desired casting time of the casting and is dimensioned individually, taking into account the casting performance when filling the mold and the given casting geometry. The gate cross-section dimensioning then gives the basic size for dimensioning the entire casting system up to the funnel or pond of the casting mold into which the liquid metal is introduced.
The actual task of a gate is to guide the liquid metal from the slag run (barrel) into the mold.
Under certain circumstances, it is assigned tasks such as slag retention (gate cross section smaller than slag flow cross section) or calming the casting turbulence (gate cross section larger than slag flow cross section).
literature
- Friedrich Nielsen: Basics of casting and gate technology and application of a method; Giesserei-Verlag GmbH Düsseldorf
- Rabinovic, Mai, Drossel: Basics of casting and feeding technology for sand mold casting, VEB Deutscher Verlag für Grundstoffindindustrie, Leipzig