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 high-pressure die casting apparatus including a shot sleeve extending through a first die half to a molding surface, and a plunger received in the shot sleeve is provided. The shot sleeve includes a side wall presenting a fluid passageway and a partial end wall disposed in a fixed position relative to the side wall. The partial end wall defines a wall opening adjacent the molding surface. Fluid is poured into the shot sleeve while the die apparatus is open, and the partial end wall prevents the fluid from flowing out of the shot sleeve. The plunger then presses the material into the mold cavity until only a portion of the material remains in the shot sleeve and blocks the wall opening. After the solidified material is ejected from the apparatus, the portion of material blocking the wall opening prevents lubricant from entering the shot sleeve.

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 casting die is formed from a mold half with a mold insert disposed at least partly in a relief of the mold half. The mold insert is mounted movably in the relief.

A device for die casting a metal component included a die casting mold which has a cavity that forms the component. The cavity is connected to a source for a metal melt by at least one temperature controlled supply channel. The metal melt is introduced into the cavity via at least one casting valve. The supply channel forms an annular channel, in which metal melt can be circulated via a conveying apparatus.

The high-quality casting device for producing a thick aluminum part includes: a mold having a movable mold and a fixed mold coming into close contact with each other to form a cavity; a platen having a movable platen on which the movable mold is mounted and a fixed platen on which the fixed mold is mounted; an upper tie bar and a lower tie bar connected to the platen; a high-pressure squeeze platen connected to the upper tie bar and the lower tie bar; a squeeze pressurizer located on the high-pressure squeeze platen to pressurize a molten metal filled into the cavity; a sprue adapted to pour the molten metal into the cavity of the mold; a pouring ladle attached to the mold to pour the molten metal into the sprue; and a casting extractor located on one side of the mold to extract the casting solidified inside the cavity.

A method and apparatus for producing semi-solid material castings from its liquid state in a shot chamber of a vertical die casting machine where the liquid material is poured into a shot chamber and rapidly cooled from its liquid state to temperatures below its liquidus. High-intensity ultrasonic vibration is applied to the cast material. The combined action of rapid cooling from the shot chamber, vigorous pushing by the plunger, and radiation of ultrasonic vibration on the cast material in the shot chamber directly turns the initial liquid material directly into a semi-solid slurry. The slurry is then injected into a die cavity to form a casting.

A portable information handling system housing portion is manufactured by a process that injects a magnesium aluminum alloy (MgAl) from a hot runner having plural outtakes into a mold having a spree at each of the plural outlets. In one example embodiment a housing lid portion is injection molded at a midpoint on opposing sides of a longest side of a rectangular shape. In another example embodiment a housing cover portion is inject molded from six sprues placed around a perimeter of a keyboard location having openings through which keys of the keyboard extend.

An overmoulding method for making a part (1) with a decoration (2) made of a metal alloy (8) that is at least partially amorphous. The method includes: providing an bauche (3) with at least one through hole (4) opening onto the overmould (2) to be made, the bauche (3) being made of a first material with low thermal effusivity; positioning the bauche (3) inside an injection mould (6); injecting the liquid metal alloy (8) through the through-hole (4) opening into a cavity of the injection mould (6) and/or of the bauche (3); and moulding the bauche (3) with the overmould (2) to obtain the part (1).