Hot chamber die-casting machine
AssigneeOskar Frech GmbH + Co. KG
InventorsRoland Fink, Ulrich Schraegle
Life of this patent
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Abstract
In a hot chamber die-casting machine, inductively-operating heating devices are associated with the mouthpiece area of the casting container and the nozzle. All of these heating devices are operated with medium frequency. The inductors are cooled with air. The machine is useful for hot chamber die-casting machines that process magnesium.
Claims26
Hot chamber die-casting machine for processing magnesium melts, comprising:
- a casting container having a riser bore with a conical mouthpiece;
- a nozzle mounted on the mouthpiece;
- a heating device for heating said nozzle;
- wherein said heating device is at least one inductively-operating heating device having an inductor mounted in a mouthpiece area of the casting container and the nozzle, said at least one inductively-operating heating device being operated with a medium frequency;
- and
- wherein the inductor comprises tubing through which an air stream is guided for air-cooling the inductor.
A heating system for processing melts in a hot chamber die-casting machine having a conical mouthpiece formed in an extension area of a casting container and a nozzle mounted on said conical mouthpiece, the heating system comprising:
- at least one inductive heating body having a sleeve-shape adapted to a particular shape of said extension area, said at least one inductive heating body comprising tubing through which an air stream is guided for air-cooling the inductive heating body;
- a generator coupled to said at least one inductive heating body for applying an operating frequency to the heating body, said operating frequency being a medium frequency;
- and
- whereby said at least one inductive heating body is fitted over the extension area to inductively heat the extension area.
Dependencies are inferred from the claim text.