A system and method for manipulating or heating conductive material. The system comprises: a first electromagnet; a second electromagnet; the first electromagnet and the second electromagnet each comprising: a body; a first pole, the first pole proximal to a working surface; a second pole, the second pole distal to a working surface; a coil at least partially disposed around the body; a modulating controller configured to selectively apply a current to the first or the second electromagnet; the current configured to produce a time-varying flux density at the first pole; and a working volume in communication with the first pole. Manipulation of the material may be contactless and may include, but is not limited to, rotating, levitating, moving, and/or shaping the conductive material.

An molten metal stirring device is provided, including a main bath that includes a furnace main body including a storage chamber; and a stirring unit that drives and stirs the molten metal stored in the furnace main body, the stirring unit including a passage member that includes a molten metal passage, the rotating-shifting magnetic field unit main body including a permanent magnet and being provided outside the passage member, the furnace main body including a molten metal outlet and inlet formed in a side wall and in communication with each other, at least a pair of electrodes are provided in the molten metal passage, and molten metal present in the molten metal passage is driven toward the molten metal outlet by a resultant driving force of first and second electromagnetic forces according to Fleming's rule.

An molten metal stirring device is provided, including a main bath that includes a furnace main body including a storage chamber; and a stirring unit that drives and stirs the molten metal stored in the furnace main body, the stirring unit including a passage member that includes a molten metal passage, the rotating-shifting magnetic field unit main body including a permanent magnet and being provided outside the passage member, the furnace main body including a molten metal outlet and inlet formed in a side wall and in communication with each other, at least a pair of electrodes are provided in the molten metal passage, and molten metal present in the molten metal passage is driven toward the molten metal outlet by a resultant driving force of first and second electromagnetic forces according to Fleming's rule.

A disc brake rotor for a vehicle is provided. The disc brake rotor includes a hat and a friction ring extending circumferentially from the hat. The disc brake rotor is formed of a cast hypereutectic aluminum alloy. The hypereutectic aluminum alloy includes: 14.00 to 25.00 wt. % of silicon; 4.90 to 8.00 wt. % of copper; 0.05 to 0.90 wt. % of nickel; 0.50 to 1.50 wt. % of magnesium; 0.05 to 1.20 wt. % of iron; 0.05 to 1.00 wt. % of manganese; 0.05 to 1.00 wt. % of zinc; 0.05 to 1.20 wt. % of titanium; 0.05 to 1.20 wt. % of zirconium; 0.05 to 1.20 wt. % of vanadium; 0.001 to 0.10 wt. % of phosphorous; and the balance aluminum. The alloy may also include other trace elements such as chromium, lead, and tin in an amount not exceeding 0.20 wt. %. The disc brake rotor may be formed by a high pressure, semi-solid die casting process including rheocasting.

A disc brake rotor for a vehicle is provided. The disc brake rotor includes a hat and a friction ring extending circumferentially from the hat. The disc brake rotor is formed of a cast hypereutectic aluminum alloy. The hypereutectic aluminum alloy includes: 14.00 to 25.00 wt. % of silicon; 4.90 to 8.00 wt. % of copper; 0.05 to 0.90 wt. % of nickel; 0.50 to 1.50 wt. % of magnesium; 0.05 to 1.20 wt. % of iron; 0.05 to 1.00 wt. % of manganese; 0.05 to 1.00 wt. % of zinc; 0.05 to 1.20 wt. % of titanium; 0.05 to 1.20 wt. % of zirconium; 0.05 to 1.20 wt. % of vanadium; 0.001 to 0.10 wt. % of phosphorous; and the balance aluminum. The alloy may also include other trace elements such as chromium, lead, and tin in an amount not exceeding 0.20 wt. %. The disc brake rotor may be formed by a high pressure, semi-solid die casting process including rheocasting.

The present application relates to a molten metal transfer pump in which a spiral flow channel is formed by a cylindrical body and a spiral body received in the cylindrical body while being fixed and which allows molten metal to swirl in the spiral flow channel by using Lorentz force generated by a current that flows in a longitudinal direction in molten metal in the cylindrical body and a lateral magnetic field that is generated by a permanent magnet provided on the outer periphery of the cylindrical body.

The present application relates to a molten metal transfer pump in which a spiral flow channel is formed by a cylindrical body and a spiral body received in the cylindrical body while being fixed and which allows molten metal to swirl in the spiral flow channel by using Lorentz force generated by a current that flows in a longitudinal direction in molten metal in the cylindrical body and a lateral magnetic field that is generated by a permanent magnet provided on the outer periphery of the cylindrical body.

A molten metal purification device for purifying molten metal flowing through a flow body having a flow path formed by a pair of opposed side walls and a bottom wall. The device includes internal and external members provided inside and outside the flow body, respectively. The internal member includes an electrode body provided inside the path made of a conductive member and has a pair of opposed electrodes provided in the path where current flows across the electrodes through the molten metal and a non-conductive filter. The external member is configured as a magnetic field device having an upper surface side magnetized to an N or S pole and disposed below the flow body. Lines of magnetic force coming out from the N pole or entering the S pole intersect with the current to generate Lorentz force for driving the molten metal along a flowing direction in the path.

A magnetic field device of a molten metal driving device includes iron cores, yokes coupling the iron cores, coils wound around the iron cores so as to sandwich the yoke, coils wound around the iron cores so as to sandwich the yoke, and coils wound around the iron cores so as to sandwich the yoke, the coils being wound so as to generate a magnetic field toward the yoke when a first-phase current flows, the coils being wound so as to generate a magnetic field toward the yoke when a second-phase current flows, the coils being wound so as to generate a magnetic field toward the yoke when a third-phase current flows.

A magnetic field device of a molten metal driving device includes iron cores, yokes coupling the iron cores, coils wound around the iron cores so as to sandwich the yoke, coils wound around the iron cores so as to sandwich the yoke, and coils wound around the iron cores so as to sandwich the yoke, the coils being wound so as to generate a magnetic field toward the yoke when a first-phase current flows, the coils being wound so as to generate a magnetic field toward the yoke when a second-phase current flows, the coils being wound so as to generate a magnetic field toward the yoke when a third-phase current flows.