Feeder with a tubular body

A feeder system connected with a cast piece, comprising:

• a first part, facing away from the cast piece, comprising a feeder or a feeder head which comprises a cavity to receive liquid metal during a casting process;
• and
• a second part, facing towards the cast piece, comprising a tubular body, which connects the cavity in the feeder or feeder head to a cavity of the cast piece,
• wherein the composition of the tubular body comprises steel, said steel having a carbon content of at least about 0.7 wt.-%.

A feeder system connected with a cast piece or a mold cavity, said feeder system comprising at least two parts

• a first part, situated at a side facing away from the cast piece, forming a feeder or a feeder head which comprises a cavity to receive liquid metal during a casting process, said cavity being closed at its end facing away from the cast piece;
• a second part, situated at the side facing towards the cast piece, which is formed by a tubular body, which connects the cavity formed by the feeder or feeder head to the cavity of the cast piece, wherein the tubular body narrows in cross section or internal diameter towards its end facing the cast piece or mold cavity;
• wherein the composition of the tubular body comprises steel;
• wherein said steel has a carbon content of at least about 0.7 wt. %;
• and
• wherein the tubular body is at least partially inserted into the cavity of the feeder or feeder head such that the tubular body with its end facing away from the cast piece or mold cavity abuts at the upper end of the cavity of the feeder or feeder head such that after the molding on process or the densification of the molding material, the feeder head is destroyed in its upper section, causing a relative movement between the tubular body and the feeder head.