Apparatus for ventilation of a casting mold

Apparatus (10) for ventilation of a casting mold, particularly in the form of a chill vent, having two mold halves (12, 14) that lie opposite one another and are complementary, in terms of shape and function, to one another, which halves have a plurality of elevations (18) and/or depressions (20), in each instance, which run essentially parallel to one another and essentially transverse to the flow direction, on their surfaces (16) that face one another, in such a manner that when the mold halves (12, 14) are set onto one another, a gap (22) having an inlet (24) and an outlet (26) forms between the mold halves (12, 14), at least in part, which gap can particularly be washboard-shaped, labyrinth-shaped and/or meander-shaped, and through which gap air displaced out of the casting mold and excess molten material can flow during filling of the casting mold, wherein at least one or preferably each mold half (12, 14) is formed by multiple segments (12a, 12b, 12c, 14a, 14b, 14c) disposed next to one another in the longitudinal direction of the mold half (12, 14) and releasably attached, preferably connected with one another.