Device for heating a meltable material
AssigneeIng. Walter Hengst GmbH & Co. KG
InventorChristian Boehnke
Life of this patent
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Abstract
With reference to a device for heating a meltable material, such as plastic, upstream from equipment for further processing, such as casting or extrusion equipment, which device includes a conveyor channel for the material and a heating means located outside the conveyor channel, the heating means being designed as a radiant heating means and the thermal radiation being directed onto the conveyor channel, the invention proposes that the conveyor channel consist of a material which completely or partially absorbs the thermal radiation.
Claims10
Device for heating a meltable material such as plastic upstream from equipment for subsequent processing such as casting or extrusion equipment, including a conveyor channel for the material and including a heating means located outside the conveyor channel, the heating means being designed as a radiant heating means and the thermal radiation being directed to onto the conveyor channel, characterized in that the conveyor channel (1) consists of a material which completely or partially absorbs the thermal radiation.
Device according to one of the foregoing claims, characterized in that the heating means (4) encircles the conveyor channel (1) in an annular or a helical pattern.
Device according to one of the foregoing claims, characterized in that the heating means (4) includes two or more sections, the heating output of which is separately controllable.
Device according to one of the foregoing claims, characterized in that the conveyor channel (1) is located in a housing (7) in which there is an atmosphere conducive to the stability of the conveyor channel (1), such as a vacuum or inert gas.
Device according to one of the foregoing claims, characterized by reflectors (6) which are arranged so as to reflect the thermal radiation from the heating means (4) to the conveyor channel (1).
Dependencies are inferred from the claim text.