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US 10,837,081 B2Granted
Method for using a tubular sonotrode
AssigneeConstellium Issoire
InventorsPhilippe Jarry, Jean-Louis Achard
Life of this patent
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Abstract
The method includes the following steps: a) providing a tubular sonotrode (1) formed in a material substantially inert to liquid aluminum, such as a ceramic, for example, silicon oxynitride, the sonotrode comprising a first open end region (2) and a second optionally closed end region (3), b) submerging at least some of the open end region (2) of the tubular sonotrode (1) in the liquid aluminum alloy, and c) applying power ultrasound on the liquid aluminum alloy by means of the tubular sonotrode (1).
Claims15
A method for using a sonotrode, in a first liquid aluminum alloy, comprising:
- a) providing a tubular sonotrode formed from a material substantially inert to liquid aluminum and a power ultrasound emission transducer attached to the sonotrode,
- wherein the sonotrode comprises a first open end region and a second closed end region, and the transducer is attached to the sonotrode at an upper portion closed end region of the tubular sonotrode by means of a flange,
- b) submerging at least some of the open end region of the tubular sonotrode in the liquid aluminum alloy, and
- c) applying power ultrasound transmitted by the transducer to the liquid aluminum alloy by means of the tubular sonotrode, wherein the tubular sonotrode guides ultrasonic waves transmitted by the transducer attached at the upper portion closed end region of the tubular sonotrode to the first liquid aluminum alloy in which the open end region of the tubular sonotrode is submerged,
- wherein the method further creates a descending velocity field in the first liquid aluminum alloy at the first end region of the tubular sonotrode so as to generate a descending flow of the first liquid aluminum alloy inside the tubular sonotrode.
2 more elements
Dependencies are inferred from the claim text.