Acoustic rotary liquid processor
AssigneeQingyou Han
InventorQingyou Han
Life of this patent
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Abstract
An acoustic rotary liquid processor coupled with high-intensity ultrasonic vibration, rotary stiffing, gas purging, and melt surface stabilizing is described. The processor can be used for the synthesis of particulate reinforced composite materials, scavenging dissolved gases in molten materials, and preparation of a slurry containing a small fraction of non-dendritic solid particles for semi-solid material processing.
Claims17
A method of processing a freezable liquid material for at least an improved synthesis of particulate reinforced metal matrix composite, degassing of molten metal, or preparation of a semi-solid slurry, the method comprising of:
- using an elongated baffle plate partially submerged into the bath of liquid material to prevent vortex formation wherein the elongated baffle plate may or may not be coupled with high-intensity ultrasonic vibrations;
- operating an ultrasonic rotary device to stir the bath of liquid material, the device comprising of:
- a rotation driver,
- a plurality of at least one ultrasonic transducer,
- a plurality of at least one elongated sonotrode or elongated sonotrode rotor comprising a first end and a second end, the first end attached to the ultrasonic transducer and the second end comprising a tip,
- an elongated rotor or an elongated sonotrode rotor, and
- a purging gas delivery system, embedded either in one elongated sonotrode, elongated rotor, or elongated sonotrode rotor comprising of a purging gas pathway and a purging gas outlet which is at the tip of the corresponding second end of the elongated article;
- and
- introducing a purging gas into the bath of liquid material through the said purging gas outlet.
A method of processing a molten metallic material for preparing of semi-solid slurry, the method comprising of:
- using an elongated baffle plate partially submerged into the liquid bath to prevent vortex formation wherein the elongated baffle plate may or may not be coupled with high-intensity ultrasonic vibration;
- operating an ultrasonic rotary device to stir the liquid bath, the device comprising of:
- a rotation driver,
- an elongated rotor or an elongated sonotrode rotor,
- a plurality of at least one ultrasonic transducer, and
- a plurality of at least one elongated sonotrode comprising of a first end and a second end with the first end attached to the ultrasonic transducer and the second end comprising a rotor shaped tip;
- and
- submerging the said elongated articles into the melt bah for a predetermined duration and removed the elongated articles out of the bath after the slurry containing a predetermined fraction of non-dendritic solid has been obtained.
Dependencies are inferred from the claim text.