Abstract: A casting device capable of manufacturing products in a short cycle time; and a casting method using this casting device. The casting device includes: a pressurized furnace; a mold having a cavity formed therein; a stalk; at least a first hot water tap in a cylindrical shape connecting the cavity and an end of the stalk on the downstream side in the molten metal filling direction and guiding the molten metal supplied to the stalk to inside the cavity; and a filter member provided in the first hot water tap. The filter member includes a flange extending along the extension direction of the first hot water tap and abutting an inner wall surface of the first hot water tap. A coolant passage having coolant flowing therethrough is provided in the vicinity of the inner wall surface.

Abstract: A casting device capable of manufacturing products in a short cycle time; and a casting method using this casting device. The casting device includes: a pressurized furnace; a mold having a cavity formed therein; a stalk; at least a first hot water tap in a cylindrical shape connecting the cavity and an end of the stalk on the downstream side in the ma ten metal filling direction and guiding the molten metal supplied to the stalk to inside the cavity; and a filter member provided in the first hot water tap. The filter member includes a flange extending along the extension direction of the first hot water tap and abutting an inner wall surface of the first hot water tap. A coolant passage having coolant flowing therethrough is provided in the vicinity of the inner wall surface.

Abstract: An aluminum alloy casting free from crack-causing needle-shaped crystallized substances, and an apparatus and a method for producing a slide member excellent in mechanical properties such as abrasion resistance are provided. A melt of an iron-containing aluminum alloy poured into a vessel in the completely liquid state is vibrated by a vibrating needle of a vibration applying unit, and then a core is inserted into the melt to cool the melt, whereby the aluminum alloy casting is produced as a sleeve of a slide member. The vibrating step is carried out at a frequency of 20 to 1000 Hz, and is continued until just before the melt is cooled to the solid-liquid coexisting temperature region.

Abstract: There are provided an aluminum alloy casting free from crack-causing needle-shaped crystallized substances and an apparatus and a method for producing a slide member excellent in mechanical properties such as abrasion resistance. A melt of an iron-containing aluminum alloy poured into a vessel in the completely liquid state is vibrated by a vibrating needle of a vibration applying unit, and then a core is inserted into the melt to cool the melt, whereby the aluminum alloy casting is produced as a sleeve of a slide member. The vibrating step is carried out at a frequency of 20 to 1000 Hz, and is continued until just before the melt is cooled to the solid-liquid coexisting temperature region.

Abstract: There are provided an aluminum alloy casting free from crack-causing needle-shaped crystallized substances and an apparatus and a method for producing a slide member excellent in mechanical properties such as abrasion resistance. A melt of an iron-containing aluminum alloy poured into a vessel in the completely liquid state is vibrated by a vibrating needle of a vibration applying unit, and then a core is inserted into the melt to cool the melt, whereby the aluminum alloy casting is produced as a sleeve of a slide member. The vibrating step is carried out at a frequency of 20 to 1000 Hz, and is continued until just before the melt is cooled to the solid-liquid coexisting temperature region.

Abstract: An aluminum base composite material (10) having an aluminum alloy (11) as a base material and, incorporated therein, a reinforcing material (12) composed of alumina particles of alumina fibers, wherein a spinel layer (13) is formed on the surface of the reinforcing material and an aluminum nitride layer (14) exhibiting excellent wettability is formed on the surface of said spinel layer.

Abstract: An ingot I made of a light alloy is produced using a continuous casting apparatus including a cylindrical water-cooled casting mold which is disposed immediately below a spout having an upward-turned molten metal receiving port and a downward-turned molten metal outlet, and which has an inside radius r1 larger than an inside radius r2 of the molten metal outlet, and lubricating oil discharge passages provided below the spout to supply a lubricating oil to between the water-cooled casting mold 13 and a molten metal m brought into contact with the water-cooled casting mold. In this production, a lubricating oil having a vaporization rate of 30% or more at 300° is used, and an annular gas accumulation for spacing the molten metal apart from outlets of the lubricating oil discharge passages is defined below an annular protrusion of the spout by vaporization of the lubricating oil.

Abstract: An apparatus for producing a metal formed product comprises a molten metal-holding furnace; a semisolidified metal-producing mechanism; a cooling member-restoring mechanism arranged adjacent to the semisolidified metal-producing mechanism, for applying a restoring treatment so that chillers have a desired function; a forming machine for forming semisolidified metal to have a predetermined shape; and an articulated robot capable of transporting a crucible to the molten metal-holding furnace, the semisolidified metal-producing mechanism, and the forming machine. The semisolidified metal-producing mechanism includes first to third agitators. The cooling member-restoring mechanism includes first to third treating sections. These components are arranged in a direction of back and forth movement of the articulated robot. Accordingly, it is possible to efficiently obtain the metal formed product having a high quality.

Abstract: When a continuous casting is carried out while applying an electromagnetic agitating force to a molten metal of an aluminum alloy composition, the molten metal of the aluminum alloy composition has an Fe content in a range of 0.75% by weight ≦Fe<2% by weight. Thus, a hard Fe-based intermetallic compound can be crystallized as a primary crystallized product, and an acicular intermetallic compound can be pulverized and finely divided by cooperation of the hard Fe-based intermetallic compound with the electromagnetic agitating force.

Abstract: An agitated continuous casting apparatus includes a spout having an upward-turned molten metal receiving port and a downward-turned molten metal outlet, a cylindrical water-cooled casting mold disposed immediately below the spout, and an agitator for applying an electromagnetic agitating force to the molten metal in the spout. The agitator has a function to form, in the spout, an upper area for moving the molten metal in a substantially radiate direction, and a lower area for rotating the molten metal in a circumferential direction. An upper area forming portion of an inner peripheral surface of the spout is formed into a tapered shape with its inside diameter gradually increased from its upper peripheral edge toward its lower peripheral edge.

Abstract: When a continuous casting is carried out while applying an electromagnetic agitating force to a molten metal of an aluminum alloy composition, the molten metal of the aluminum alloy composition, which is used, has an Fe content in a range of 0.75% by weight ≦Fe<2% by weight. Thus, a hard Fe-based intermetallic compound can be crystallized as a primary crystallized product, and an acicular intermetallic compound can be pulverized and finely divided by cooperation of the hard Fe-based intermetallic compound with the electromagnetic agitating force.

Abstract: An apparatus for producing a metal formed product comprises a molten metal-holding furnace; a semisolidified metal-producing mechanism; a cooling member-restoring mechanism arranged adjacent to the semisolidified metal-producing mechanism, for applying a restoring treatment so that chillers have a desired function; a forming machine for forming semisolidified metal to have a predetermined shape; and an articulated robot capable of transporting a crucible to the molten metal-holding furnace, the semisolidified metal-producing mechanism, and the forming machine. The semisolidified metal-producing mechanism includes first to third agitators. The cooling member-restoring mechanism includes first to third treating sections. These components are arranged in a direction of back and forth movement of the articulated robot. Accordingly, it is possible to efficiently obtain the metal formed product having a high quality.

Abstract: A heated state-deciding apparatus and a thermocouple provided for a transport robot for detecting the temperature of a billet being transported by the transport robot, and a deciding member for deciding whether or not the billet is heated to be in a predetermined solid phase state on the basis of the detected temperature. Accordingly, it is possible to efficiently and accurately decide whether or not the solidus rate of the metal billet is good or bad, and it is possible to improve the productivity.