Disclosed is a heating system for molten metal handling devices, examples of which are troughs, launders and other vessels. The heating system may include a refractory containment body, heater assembly, a containment shell and a thermal inducing interface between the heater assemblies and the containment shell and/or refractory body.

A shaping machine comprising an induction coil for inductive heating, in particular melting, of a material, and a body substantially surrounding the induction coil, wherein the body substantially radially and/or axially surrounding the induction coil is a magnetic and/or magnetizable body.

The Induction Heated Extrusion Melter is an invention for melting plastic and metal in an extrusion process. It is a component and is to be integrated into an apparatus. The operating temperature of the Induction Heated Extrusion Melter is in excess of two thousand degrees Fahrenheit. Therefore, it can melt many types thermoplastics and metals. The Induction Heated Extrusion Melter could melt metals such as, but not limited to, aluminum, brass or lead and plastics of various shapes and sizes. It could be used in additive manufacturing machines, where shapes are made by adding layers of molten material. It could also be used as part of an extrusion apparatus that extrude long continuous shapes.

The present invention relates to an electric channel inductor assembly. A nonremovable, hollow and nonmagnetic channel mold is used to form the one or more flow channels of the electric channel inductor assembly for electromagnetic circulation of a molten metal composition. A heated fluid medium is circulated in the hollow interior of the channel mold after the mold is situated in the inductor assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the channel mold prior to circulation of the molten metal composition.

The present invention relates to an electric channel inductor assembly. A nonremovable, hollow and nonmagnetic channel mold is used to form the one or more flow channels of the electric channel inductor assembly for electromagnetic circulation of a molten metal composition. A heated fluid medium is circulated in the hollow interior of the channel mold after the mold is situated in the inductor assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the channel mold prior to circulation of the molten metal composition.

A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.

A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.

An induction shield is configured to substantially reduce emissions emitted from an induction heat source (e.g., coil) during use. The shield is positioned adjacent to a vessel (e.g., in an injection system) having a melting portion configured to receive meltable material to be melted therein and an induction heat source positioned adjacent the vessel configured to melt the meltable material received in the melting portion of the vessel. The shield may include a tube configuration configured to flow liquid therein to absorb heat emitted from the heat source. The tube configuration can comprise a single tube or multiple tubes. The shield can be positioned adjacent the induction source in a helical manner, for example, or at ends of the vessel. The shield can be used during melting of amorphous alloy and for forming a part.

An induction shield is configured to substantially reduce emissions emitted from an induction heat source (e.g., coil) during use. The shield is positioned adjacent to a vessel (e.g., in an injection system) having a melting portion configured to receive meltable material to be melted therein and an induction heat source positioned adjacent the vessel configured to melt the meltable material received in the melting portion of the vessel. The shield may include a tube configuration configured to flow liquid therein to absorb heat emitted from the heat source. The tube configuration can comprise a single tube or multiple tubes. The shield can be positioned adjacent the induction source in a helical manner, for example, or at ends of the vessel. The shield can be used during melting of amorphous alloy and for forming a part.

A method is provided for the detection of melt adjacent to the exterior of a bushing in an induction channel furnace. An electrically conductive mesh is disposed around the exterior surface of the bushing facing a refractory that separates the bushing from a channel in which molten metal (melt) flows. The mesh is connected to a grounded voltage source so that when an electrically conductive melt at ground potential in the channel breaches the refractory and penetrates the electrically conductive mesh an electrical circuit is completed through the melt and the grounded voltage source.