Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.

Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.

An apparatus may comprise a degassing system and a treatment station. The treatment station may comprise a shell, a refractory disposed in the shell, and insulation disposed between the shell and the refractory. The refractory may comprise a first plurality of slots, a second plurality of slots, and a trough. The first plurality of slots may be upstream from the degassing system and the second plurality of slots may be downstream from the degassing system. A first skim brick may be slideably disposed in a first one of the first plurality of slots and a second skim brick may be slideably disposed in a first one of the second plurality of slots. A first filter may be slideably disposed in a second one of the first plurality of slots and a second filter may be slideably disposed in a second one of the second plurality of slots.

A method includes performing pre-treating, comprising fire-roasting or wet-washing, on the processed aluminum scraps of aeronautical aluminum alloy. The method further includes performing pressing formation on the pre-treated processed aluminum scraps of aeronautical aluminum alloy to form block-shaped aluminum scraps. The method further includes performing oxygen-controlled smelting on the block-shaped aluminum scraps in a smelting furnace to form aluminum alloy melt. The method further includes performing casting on the aluminum alloy melt to obtain an aluminum alloy product of meeting component requirements of aeronautical aluminum alloy.

The device comprises a sonotrode (102) which can produce an oscillatory movement by means of a transducer (101) in order to generate ultrasound oscillation waves in said light alloy melt, when said sonotrode (102) and said melt are in contact, so as to perform the degassing; and an electronic-mechanical component (104) embedded in part of the sonotrode (102) for detecting the state of the service life or an anomaly of the sonotrode (102). The electronic-mechanical component (104) includes means for sending at least one notification signal to an electronic remote control equipment (103), forming a system together with the device. The electronic control device (103) is configured for sending an activation or deactivation signal for activation or deactivation of said transducer (101), taking into account said at least one notification signal.

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.

A degassing and grain refinement system for a cast aluminum-based component and a method of achieving both hydrogen gas presence reduction and grain size reduction in a cast aluminum-based component. Ultrasonic vibrations are imparted to both the liquid metal travel path from its source to the mold to achieve the reduction in hydrogen gas in the molten metal, as well as to one or more locations within the mold to achieve relatively small and equiaxed grains in the component upon solidification.

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.

Methods for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath in close proximity to the ultrasonic device.

The invention relates to a manufacturing method for making an unwrought semi-finished product having at mid thickness a density of micropores of size greater than 90 m less than 50% and preferably less than 20% of the density of micropores of size greater than 90 m obtained by a method according to prior art. The method according to the invention comprises in particular an ultrasound treatment step for the molten metal bath in a furnace and/or a vessel using an immersed device comprising at least one ultrasound transmitter. The semi-finished products obtained according to the method of the invention are particularly advantageous for manufacturing by rolling sheets designed for the aircraft industry to produce spars, ribs, upper and lower wing skins and for manufacturing by extrusion sections designed for the aircraft industry to produce stiffeners.