Patent ID: 7810550

Claim:
A metering device for a hot chamber die-casting machine, comprising: a casting container attachable to a crucible of the hot chamber die-casting machine and having a riser channel in a riser channel area and a casting piston unit for metered conveying of melt out of the crucible via the riser channel; a heating device with a flameless heating unit for active heating of at least a part of the riser channel area; wherein the heating unit is one of: (i) constituted by a hollow cylinder-shaped heating cylinder having a casing on which an electric heating conductor structure is provided and is coaxially inserted in a piston rod leadthrough bore through which a piston rod of the casting piston is passed, (ii) constituted by a hollow cylinder-shaped heating cylinder having a casing on which an electric heating conductor structure is provided and is coaxially inserted to be electrically insulated from the riser channel in a riser bore containing the riser channel, (iii) arranged in a heater receiving space specially provided in the casting container, the heater receiving space being constituted by a conically-shaped heating bore comprising a cylindrical recovery bore of the casting container and an insertion sleeve having a conical inner surface and a cylindrical outer surface so as to be insertable into the receiving bore, and (iv) arranged in a heater receiving space specially provided in the casting container and being constituted by a receiving space provided in a wall of the casting container seperating the riser channel and the piston leadthrough bore and annularly surrounding a corresponding riser portion.