Feeder for use in the casting of metals in casting molds

Abstract

The invention relates to a feeder insert (1, 1′) for use in the casting of metals in casting molds, with a feeder body (2, 2′) and a feeder element (4, 4′) which interacts with the feeder body (2, 2′), which delimit a feeder cavity (6) for receiving liquid metal, the feeder body (2, 2′) having a first end (8) with a passage opening (10) for the liquid metal, and a second end (12) which lies opposite the first end (8) and is open, and the feeder element (4, 4′) being arranged at this second, open end (12), it being possible for portions of the feeder body (2, 2′) and the feeder element (4, 4′) to be displaced telescopically inside one another, with the result that the feeder cavity (6) can be compressed down to a minimum volume VK, the feeder body (2, 2′) defining at least a proportion of 40% of this minimum volume VK.

Dependencies are inferred from the claim text.