A hot runner feed system is provided for a diecasting mold, wherein the feed system has a melt manifold and feed block construction having an entry-side feed inflow opening, at least one first and one second exit-side feed outflow opening which open into a mold separation plane between a fixed mold half and a movable mold half of the diecasting mold, and a casting runner-duct structure that extends so as to branch out from the feed inflow opening to the feed outflow openings. The melt manifold and feed block construction at least in an exit-side block region that includes the two feed outflow openings in a transverse direction parallel with the mold separation plane in relation to a predefined nominal operating extent is made so as to be shortened by an expansion dimension which has been predefined as a thermal transverse expansion of this block region when heated from a room temperature range to a predefined operating temperature range that is elevated in relation to said room temperature range.

A piston of a die-casting apparatus comprises: a piston head fabricated of a first material; an elongate, inner carrier coupled to the piston head; a generally annular body seated on the carrier adjacent the piston head; and a wear ring disposed on the piston head, the wear ring being fabricated of a second material. The first material has a higher toughness and a lower hardness than the second material.

A die casting mold may be made of an iron alloy including, by mass: about 1% to about 6% nickel, about 0.1% to about 5% copper, about 0.2% to about 2.5% aluminum, about 0.5% to about 2% manganese, and about 0.05% to about 0.2% carbon. The iron alloy may be formed into an initial shape of the die casting mold, heated to a temperature greater than or equal to about 900 C. and then cooled to form a supersaturated solid solution of iron and dissolved alloying elements. Then, the iron alloy may be heated at a temperature sufficient to precipitate intermetallic nanoparticles from the supersaturated solid solution to form an intermetallic precipitate phase dispersed throughout an iron-based matrix phase. A layer of iron alloy material disposed at and along a surface of the iron alloy may exhibit a deformed microstructure indicative of a machining direction.

A diecasting tool has an insert for producing a cooled motor housing. The diecasting tool has mould halves including: a stationary mould half; and movable mould half. One of the mould halves has a cylindrically extending annular gap having a central axis. The moveable mould half is arranged so as to be movable parallel to the central axis. The insert is arranged in the cylindrically extending annular gap. The insert is a bush. One end of the bush projects into a mould cavity, which is formed by the stationary mould half and the movable mould half, and is at least partially surrounded in a form-fitting manner by the casting material in a state when the casting material is cast.

An object is to provide an alloy composition that has a sufficient melting point for casting of an aluminum alloy, also has high hardness, and can suppress an occurrence of galling. The alloy composition of the present invention includes: a MoCr-based dendritic structure 3; and a NiAl-based interdendritic structure 5 that fills a periphery of the MoCr-based dendritic structure 3. The alloy composition of the present invention can adopt a chemical composition I in which when Mo+Cr+Ni+Al=100 at. % holds, Ni+Al=15 to 50 at. % and Mo+Cr=50 to 85 at. % hold; or a chemical composition II in which Ni+Al=40 to 70 at. % and Mo+Cr=30 to 60 at. % hold.

The present invention relates to a die-casting die, having a composition consisting of, in mass %: 0.16C0.26, 0.001Si0.80, 1.20Mn2.00, 2.41Cr2.73, 0.48Mo0.97, 0.003V0.28, 0.0005Al0.15, 0.0002N0.050, with the balance being Fe and unavoidable impurities, and having a hardness of 26 to 43 HRC and a thermal conductivity [W/m/K] measured by using a laser flash method at 25 C. being 27.0.

Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the 3-stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.

A casting device is provided with: a pair of cylinders; a core pin holding member to which core pins are attached; and a pair of bent members. The cylinder is disposed in parallel with a second limb of the bent member, and a rod is coupled to a surface on the inner side of a first limb of the bent member. The second limb is coupled to the core pin holding member via a coupling mechanism so as to be freely attachable to/detachable from the core pin holding member.

An example die casting system includes a die comprised of a plurality of die components that define a die cavity configured to receive a molten metal. One of the die components comprises a material that is not reactive with the molten metal and has a melting temperature above 815 degrees Celsius. The die casting system may be used in a method for die casting a gas turbine engine component.

The present invention relates to a steel for a mold, which has a composition containing, on % by mass basis: 0.35%C0.40%, 0.003%Si0.20%, 0.72%Mn0.94%, 5.65%Cr6.00%, 1.65%Mo2.00%, 0.71%V0.90%, and 0.001%N0.080%, with the balance being Fe and inevitable impurities.