A die casting machine of an embodiment includes: a holding furnace holding molten metal; a sleeve located outside the holding furnace and having a molten metal supply port passing through a mold; a plunger sliding through the sleeve and including a plunger rod and a plunger tip fixed to a tip of the plunger rod; a molten metal supply pipe pushed against the sleeve to cover the molten metal supply port and supplying the molten metal into the sleeve; and a pushing force variable mechanism reducing a pushing force for the sleeve in the molten metal supply pipe when the plunger is sliding.

A foundry component for an apparatus for casting or handling a metal melt includes a metallic main body which is provided in a melt-contact surface region with an anticorrosion layer structure composed of one or more superposed layers. The anticorrosion layer structure has, as a sole layer or as one of a plurality of layers, a protective woven fabric body prefabricated as flexible woven fabric body from a woven fabric material which is casting temperature resistant or a nonwoven protective layer prefabricated as pliable nonwoven layer from a fiber nonwoven material or fiber paper material which is casting temperature resistant or a protective shaped body prefabricated as rigid shaped body from a material which is casting temperature resistant.

A process of forming a low cost, erosion, oxidation, and wear resistant composite liner or insert that can be installed into a shot chamber in a die casting machine is provided. The process utilizes a self-healing erosive wear resistant coating on a liner of refractory metal to serve as the working surfaces of a shot chamber. The refractory liner is bonded to a low cost material so that the liner can be made extremely thin. Such a composite liner is expected to have an improved service life for die casting of corrosive metals and alloys.

The invention provides a double station vacuum die casting machine, comprising a driving device, a first die casting unit, a second die casting unit, a feeding component, a vacuum pump and a housing, the vacuum pump is arranged outside the housing, the driving device is arranged inside the housing, and the first die casting unit and the second die casting unit are respectively arranged on both sides of the driving device; the driving device comprises a driving unit, a first injection rod assembly and a second injection rod assembly, the first injection rod assembly and the second injection rod assembly are respectively arranged on both sides of the driving unit, the first injection rod assembly is used to provide power for die casting of the first die casting unit, and the second injection rod assembly is used to provide power for the second die casting unit.

A casting plunger system for a die casting machine includes a stationary system part and a system part which moves relative to the stationary system part in a respective casting cycle for the introduction of melt material into a casting mould. The moved system part has a plunger, a plunger rod and a rod drive unit, and is configured to decelerate at the end of a mould filling phase of the casting cycle under the effect of pressure on the melt material. A casting method for a die casting machine is provided with such a plunger system. The moved system part has a mass which can be adjusted variably between different casting cycles, and/or the moved system part consists of a moved main system part and an additional mass unit which is arranged so as to be movable relative to the main system part and is configured to decelerate, at the end of the mould fill phase of the casting cycle, later by a predefined delay time than the main system part.

The invention relates to an apparatus (1; 1a; 1b; 1c; 1d; 1e) for producing a casting (36) formed from an amorphous or partially amorphous metal, which comprises a casting mold (3; 3a; 3b; 3c; 3d; 3e) having at least one filling opening (16; 16a; 16b, 41; 16c; 16d; 16e) for introducing a casting material (15; 15a; 15b; 15c; 15d; 15e) forming the casting (36) and a device for melting the casting material (15; 15a; 15b; 15c; 15d; 15e). The melting device expediently has at least one region (13; 13; 13b; 40, 13c; 13d; 13e) which is provided for melting the casting material (15; 15a; 15b; 15c; 15d; 15e). Advantageously, an apparatus is created that allows a particularly targeted application of melting energy into the casting material. In an embodiment, the melting device comprises a means for forming at least one electric arc (30; 30a, 39) in the at least one melting region (13; 13; 13b; 40, 13c; 13d; 13e), which in particular comprises at least two electrodes (32; 32a, 38; 32b; 32c) arranged at a distance from one another, between which the at least one electric arc (30; 30a, 39) can be formed.

An insert for a steel shot sleeve of a high-pressure die casting assembly used to form aluminum vehicle components is provided. The insert is formed by additive manufacturing, for example laser sintering, and is located opposite a pouring hole of the shot sleeve. The insert includes multiple layers formed of metals and ceramic designed to reduce damage to the shot sleeve caused while casting the components. For example, a cylindrical body of the shot sleeve can be formed of steel, and the insert can include a base layer formed of the steel. The insert can include middle layers formed of a mixture of the steel; an alloy of chromium, iron, and molybdenum; and zirconium oxide. The insert can also include an inner layer formed of the zirconium oxide. The amount of ceramic increases and the amount of metal decreases in the direction moving toward the inner layer.

Methods for replacing an impingement site of a shot sleeve with an erosion resistant material, for manufacturing a shot sleeve for high pressure die casting of Aluminum Silicon alloys having an erosion resistant material at an impingement site, and for manufacturing a shot sleeve for high pressure die casting of aluminum silicon alloys containing 0.40% max Fe, having an erosion resistant material at an impingement site are disclosed. The shot sleeve assembly includes a shot sleeve including a pouring hole and a, impingement site. In certain embodiments a bushing assembly is implemented. The impingement site or bushing assembly includes a refractory metal tube constructed of erosion resistant material.

A hot metal supply injection method includes generating a negative pressure in a cylindrical container by a negative pressure generation device, and causing molten metal to be sucked into the cylindrical container from a retention furnace, while keeping an opening portion of the cylindrical container immersed in the molten metal, arranging the opening portion of the cylindrical container in a gate of a cavity while holding the negative pressure by closing up the opening portion of the cylindrical container after moving an inner plunger tip to a tip side of the cylindrical container, and moving the inner plunger tip to a rear end side of the cylindrical container, then moving an outer plunger tip, together with the inner plunger tip, to the tip side of the cylindrical container, and filling the interior of the cavity with the molten metal through injection via the gate.

An injection molding apparatus includes a melting section configured to melt a solid material into a shaping material and a nozzle configured to inject the shaping material supplied from the melting section into a mold. The melting section includes a screw having a groove forming surface on which a groove is formed, a barrel having an opposed surface opposed to the groove forming surface, a communication hole communicating with the nozzle being provided in the barrel, a heating section configured to heat the solid material supplied to between the screw and the barrel, a driving motor, a first gear configured to transmit a driving force of the driving motor to the screw and rotate the screw, and a first injecting section including a first injection port for injecting a first lubricant and a first injection path leading from the first injection port to the first gear.