Shot sleeves for high temperature die casting include a nickel-based alloy having a low modulus single crystal with axi-symmetric orientation.

Disclosed is an apparatus for loading one or more alloy ingots into a molding machine. The apparatus includes a holder configured to hold a plurality of the alloy ingots and dispense one or more of the alloy ingots into a melt zone of the molding machine through an opening in a mold of the machine. The holder is moved in a perpendicular direction with respect to an axis along a center of the opening in the mold between a first position in line with the opening in the mold to dispense one or more of the alloy ingots and a second position away from the opening in the mold. The apparatus can carry ingots of amorphous alloy material so that when the machine melts and molds the material, it forms a bulk amorphous alloy containing part.

Disclosed are embodiments of a vessel configured to contain a secondary magnetic induction field therein for melting materials, and methods of use thereof. The vessel can be used in an injection molding apparatus having an induction coil positioned adjacent to the vessel. The vessel can have a tubular body configured to substantially surround and receive a plunger tip. Longitudinal slots or gaps extend through the thickness of the body to allow and/or direct eddy currents into the vessel during application of an RF induction field from the coil. The body also includes temperature regulating lines configured to flow a liquid within. The temperature regulating lines can be provided to run longitudinally within the wall(s) of the body between its inner bore and outer surface(s). A flange may be provided at one end of the body to secure the body within an injection molding apparatus.

Various embodiments provide an apparatus and methods for containing the molten materials within a melt zone during melting. The apparatus may include a vessel configured to receive a material for melting therein and an induction coil with unevenly spaced turns along its length. Induction coil can have a series of turns acting as a first (e.g., load) induction coil and a series of turns acting as a second (e.g., containment) induction coil. The material in the vessel can be heated and contained by the separated turns of the induction coil. A plunger can also assist in containing material during melting. Once the desired temperature is achieved and maintained for the molten material, operation of the induction coil can be stopped and the molten material can be ejected from the vessel into a mold using the plunger.

A conveying device for molten metal in an injection die casting unit, has a storage container for the molten metal and a conveying duct delivering the molten metal to a mold cavity. The conveying duct includes a cylinder bore with a piston disposed in an axially adjustable manner. A collection chamber, from which the molten metal is introduced through an onward line into the mold cavity upon axial displacement of the piston, is provided for the molten metal. An annular space, which is connected via at least one filling bore to the collection chamber, is formed between the outer wall of the piston and the inner wall of the cylinder bore. The filling bore, on an end which opens into the collection chamber, is closable by means of a valve body which is connected to an adjustable valve rod which is displaceably disposed in an axial bore of the piston.

A die casting plunger tip assembly includes a first portion having a closed end defining an outer surface, and a tip cover disposed on the outer surface of the closed end.

A die casting plunger tip includes a hollow outer portion and a hollow inner portion. The outer portion has a first closed end. The inner portion has a second partially closed end. The inner portion is disposed within the outer portion and the second partially closed end is adjacent the first closed end of the outer portion in an axial direction. A plurality of connectors connects the outer portion and the inner portion. A plenum is formed between the outer portion and the inner portion.

Disclosed is an apparatus comprising at least one gate and a vessel, the gate being configured to move between a first position to restrict entry into an ejection path of the vessel and contain a material in a meltable form within the vessel during melting of the material, and a second position to allow movement of the material in a molten form through the ejection path. The gate can move linearly or rotate between its first and second positions, for example. The apparatus is configured to melt the material and the at least one gate is configured to allow the apparatus to be maintained under vacuum during the melting of the material. Melting can be performed using an induction source. The apparatus may also include a mold configured to receive molten material and for molding a molded part, such as a bulk amorphous alloy part.

Disclosed is a vessel for melting meltable material having a body with a melting portion configured to receive meltable material to be melted therein and an injection path for injecting the meltable material in molten form after melting (e.g., into a mold). The body has a recess configured to contain the meltable material within the vessel during melting of the material. The vessel is configured for movement between in a first position to restrict entry of molten material into an injection path of the vessel and to contain the material in the recess during melting, and a second position to allow movement of the material in a molten form through the injection path and into the mold (e.g., using a plunger). The vessel can be used in an injection molding system for molding bulk amorphous alloys.

Disclosed is an apparatus for loading one or more alloy ingots into a molding machine. The apparatus includes a holder configured to hold a plurality of the alloy ingots and dispense one or more of the alloy ingots into a melt zone of the molding machine through an opening in a mold of the machine. The holder is moved in a perpendicular direction with respect to an axis along a center of the opening in the mold between a first position in line with the opening in the mold to dispense one or more of the alloy ingots and a second position away from the opening in the mold. The apparatus can carry ingots of amorphous alloy material so that when the machine melts and molds the material, it forms a bulk amorphous alloy containing part.