Provided is a high-pressure casting method and a high-pressure casting device which are capable of safe and high-quality casting of a high-fusion-point metal having a fusion point exceeding 1000 K. After melting a casting material (1) inside a melting container (2) of cartridge type, the melting container (2) is linearly moved to pass through a guide (14) attached to a casting port bush (13) to thereby be communicated with the casting port bush (13). The melting container (2) is brought into close contact with the guide (14) and is setting to a cooling state. After the elapse of prescribed time, a plunger (50) is brought into contact with a plunger tip (4), and is immediately transferred together with a molten metal to the casting port bush (13). The molten metal is pressurized inside the casting port bush (13), and is injection-filled into a cavity (10).

A metering unit (14) for molten lead is paired with the molding cavity (13) of a molding block (6). The metering unit (14) includes a cylinder (1), to which molten lead is supplied via a blockable line (8), and a piston (2), which can be lifted in order to transfer molten lead into the molding cavity (13) in order to cast pole connectors onto battery plate lugs.

A metering unit (14) for molten lead is paired with the molding cavity (13) of a molding block (6). The metering unit (14) includes a cylinder (1), to which molten lead is supplied via a blockable line (8), and a piston (2), which can be lifted in order to transfer molten lead into the molding cavity (13) in order to cast pole connectors onto battery plate lugs.

A mold device for forming metal in a high-level vacuum environment. The mold device comprises a fixed mold, a movable mold adjoining the upper portion of the fixed mold to form a mold cavity, a closing plate placed closely on top of the movable mold, and an ejector pin extending through the closing plate and the movable mold into the mold cavity. Packing is disposed in a hole in the closing plate through which the ejector pin extends, thereby preventing atmospheric air from entering the mold cavity. There is a blocking space between the movable mold and the packing to prevent heat from being transferred to the packing. An exhaust unit creates a vacuum environment by drawing air from the mold cavity. The metal product is pushed out by the ejector pin.

A hermetically sealed disc drive comprising at least one aluminum alloy housing component manufactured with a thermally directed die casting press subassembly is disclosed. In one embodiment, the thermally directed die casting press subassembly comprises a thermally directed funnel gate that is skewed to sample molten material from an off-center portion of the shot sleeve. Disc drive housing components can be manufactured by injecting an aluminum alloy slurry from the shot sleeve through the thermally directed funnel gate and the injection nozzle into the die cavity. The aluminum alloy slurry may be a thixotropic slurry comprising a uniform primary aluminum particle size in the range of approximately 50 to 80 microns. The primary aluminum particles of cast products produced according to the methodology of the present disclosure, with the aforementioned particle size distribution, are free of encapsulated eutectic at the micron scale.

A hermetically sealed disc drive comprising at least one aluminum alloy housing component manufactured with a thermally directed die casting press subassembly is disclosed. In one embodiment, the thermally directed die casting press subassembly comprises a thermally directed funnel gate that is skewed to sample molten material from an off-center portion of the shot sleeve. Disc drive housing components can be manufactured by injecting an aluminum alloy slurry from the shot sleeve through the thermally directed funnel gate and the injection nozzle into the die cavity. The aluminum alloy slurry may be a thixotropic slurry comprising a uniform primary aluminum particle size in the range of approximately 50 to 80 microns. The primary aluminum particles of cast products produced according to the methodology of the present disclosure, with the aforementioned particle size distribution, are free of encapsulated eutectic at the micron scale.

A pressure casting machine can be configured to mold a molten material into a workpiece. The pressure casting machine can include a vacuum chamber and a pressure casting mechanism coupled to the vacuum chamber. The vacuum chamber can include a processing section having a top wall and a bottom wall opposite to the top wall, a first gate configured to seal the processing section, and a first vacuum pump coupled to the processing section. The pressure casting mechanism can include a first driver positioned adjacent to the top wall, a first core received in the processing section and coupled to the first driver, a second core received in the processing section, and a plurality of pushing members received in the processing section. The second core can be coupled to the bottom wall and opposite to the first core. The pushing members can be coupled to the top wall.

A pressure casting machine can be configured to mold a molten material into a workpiece. The pressure casting machine can include a vacuum chamber and a pressure casting mechanism coupled to the vacuum chamber. The vacuum chamber can include a processing section having a top wall and a bottom wall opposite to the top wall, a first gate configured to seal the processing section, and a first vacuum pump coupled to the processing section. The pressure casting mechanism can include a first driver positioned adjacent to the top wall, a first core received in the processing section and coupled to the first driver, a second core received in the processing section, and a plurality of pushing members received in the processing section. The second core can be coupled to the bottom wall and opposite to the first core. The pushing members can be coupled to the top wall.

An apparatus and method for melting and forming metal in a vacuum environment. Metal is melted within a metal-forming apparatus and filling the molten metal is filled into a mold cavity. A high-level vacuum environment is created in the apparatus by drawing air from the apparatus which is sealed from atmospheric air. This makes it possible to reduce contact with air, which can improve the quality of the metal product.

A mold device for forming metal in a high-level vacuum environment. The mold device comprises a fixed mold, a movable mold adjoining the upper portion of the fixed mold to form a mold cavity, a closing plate placed closely on top of the movable mold, and an ejector pin extending through the closing plate and the movable mold into the mold cavity. Packing is disposed in a hole in the closing plate through which the ejector pin extends, thereby preventing atmospheric air from entering the mold cavity. There is a blocking space between the movable mold and the packing to prevent heat from being transferred to the packing. An exhaust unit creates a vacuum environment by drawing air from the mold cavity. The metal product is pushed out by the ejector pin.