Apparatus, systems, and methods that ultrasonically agitate a semisolid metal slurry to prevent dendrite formation that can lead to clogging of a nozzle during direct metal writing.

Provided is a device for preparing a large-sized high-quality aluminium alloy ingot, which is mainly composed of a uniform cooler, a hot top, an oil-gas lubrication mold, an induction coil and a dummy ingot, wherein the hot top is arranged above the oil-gas lubrication mold, the induction coil is arranged outside the oil-gas lubrication mold, the uniform cooler is arranged inside the oil-gas lubrication mold, and the dummy ingot is arranged below the oil-gas lubrication mold. Further provided is a method for preparing a large-sized high-quality aluminium alloy ingot. The device combines a partitioned gas supply mold with the uniform cooler and an electromagnetic stirrer, and the effective coupling of the three achieves forced and uniform solidification forming of a melt under gas pressure contact conditions, such that a stable and continuous gas film is formed between the melt and the mold. The ingot has a smooth surface, and a fine and uniform internal structure.

A device for improving quality of aluminum alloy horizontal continuous casting billet by applying ultrasonic treatment is provided, including an ultrasonic generator, an ultrasonic transducer, an amplitude transformer, a holding furnace, an ultrasonic probe and a traction device. The ultrasonic generator is electrically connected with the ultrasonic transducer; the ultrasonic transducer is threadedly connected with the ultrasonic probe through the amplitude transformer, and the ultrasonic probe is placed in the holding furnace; a communication opening is formed at a bottom of the holding furnace, and the traction device is installed at the communication opening; the holding furnace is further poured with metal liquid.

A device for improving quality of aluminum alloy horizontal continuous casting billet by applying ultrasonic treatment is provided, including an ultrasonic generator, an ultrasonic transducer, an amplitude transformer, a holding furnace, an ultrasonic probe and a traction device. The ultrasonic generator is electrically connected with the ultrasonic transducer; the ultrasonic transducer is threadedly connected with the ultrasonic probe through the amplitude transformer, and the ultrasonic probe is placed in the holding furnace; a communication opening is formed at a bottom of the holding furnace, and the traction device is installed at the communication opening; the holding furnace is further poured with metal liquid.

An energy coupling device for coupling energy into molten metal. The energy coupling device includes a cavitation source which supplies energy through a cooling medium and through a receptor in contact with the molten metal. The cavitation source includes a probe disposed in a cooling channel. The probe has at least one injection port for injection of a cooling medium between a bottom of the probe and the receptor. The probe under operation produces cavitations in the cooling medium. The cavitations are directed through the cooling medium to the receptor.

A monitoring device (6) records variables that are characteristic of operating parameters of a continuous casting mold (1) for casting a metal strand (2). The monitoring device (6) records at least some of the characteristic variables by independently performing measurements during the casting of the metal strand (2). The monitoring device (6) forms groups (G1, G2) of operating parameters and independently tests whether the operating parameters of the respective group (G1, G2) satisfy a respective predetermined stability criterion. The monitoring device (6) accepts the operating parameters into a database (12). The monitoring device (6) determines those data records (11) contained in the database (12) that coincide in their input variables with the basic operating parameters and determines admissible operating parameter ranges for supplementary operating parameters. The monitoring device (6) independently tests whether the supplementary operating parameters lie within the admissible operating parameter ranges.

A monitoring device (6) records variables that are characteristic of operating parameters of a continuous casting mold (1) for casting a metal strand (2). The monitoring device (6) records at least some of the characteristic variables by independently performing measurements during the casting of the metal strand (2). The monitoring device (6) forms groups (G1, G2) of operating parameters and independently tests whether the operating parameters of the respective group (G1, G2) satisfy a respective predetermined stability criterion. The monitoring device (6) accepts the operating parameters into a database (12). The monitoring device (6) determines those data records (11) contained in the database (12) that coincide in their input variables with the basic operating parameters and determines admissible operating parameter ranges for supplementary operating parameters. The monitoring device (6) independently tests whether the supplementary operating parameters lie within the admissible operating parameter ranges.

A manufacturing method for a cast bar and tube made of a magnesium alloy, includes steps of preparing a manufacturing device; depressurizing a vacuum chamber through a depressurization device; heating a vicinity of an opening of a hollow tube; inserting the opening of the hollow tube into a molten metal; switching a valve member to be open; introducing the molten metal into a cylindrical part, and filling the cylindrical part with the molten metal; cooling the hollow tube; and continuously vibrating the hollow tube until completing solidification of the molten metal in the cylindrical part.

A manufacturing method for a cast bar and tube made of a magnesium alloy, includes steps of preparing a manufacturing device; depressurizing a vacuum chamber through a depressurization device; heating a vicinity of an opening of a hollow tube; inserting the opening of the hollow tube into a molten metal; switching a valve member to be open; introducing the molten metal into a cylindrical part, and filling the cylindrical part with the molten metal; cooling the hollow tube; and continuously vibrating the hollow tube until completing solidification of the molten metal in the cylindrical part.

A molten metal processing device including an assembly mounted on the casting wheel, including at least one vibrational energy source which supplies vibrational energy to molten metal cast in the casting wheel while the molten metal in the casting wheel is cooled, and a support device holding the vibrational energy source. An associated method for forming a metal product which provides molten metal into a containment structure included as a part of a casting mill, cools the molten metal in the containment structure, and couples vibrational energy into the molten metal in the containment structure.