Ultrasonic degassing of molten metals
First Claim
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1. An ultrasonic device comprising:
- an ultrasonic transducer,an elongated probe comprising a first end and a second end, the first end attached to the ultrasonic transducer and the second end comprising a tip, wherein the elongated probe comprises a ceramic;
a purging gas delivery system, wherein the purging gas delivery system comprises a purging gas inlet and a purging gas outlet, wherein the purging gas outlet is at the tip of the elongated probe; and
a booster between the ultrasonic transducer and the elongated probe, wherein the purging gas inlet is in the booster.
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Abstract
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.
124 Citations
17 Claims
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1. An ultrasonic device comprising:
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an ultrasonic transducer, an elongated probe comprising a first end and a second end, the first end attached to the ultrasonic transducer and the second end comprising a tip, wherein the elongated probe comprises a ceramic; a purging gas delivery system, wherein the purging gas delivery system comprises a purging gas inlet and a purging gas outlet, wherein the purging gas outlet is at the tip of the elongated probe; and a booster between the ultrasonic transducer and the elongated probe, wherein the purging gas inlet is in the booster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An ultrasonic device comprising:
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an ultrasonic transducer, a unitary, generally cylindrical, elongated probe comprising a first end and a second end, the first end attached to the ultrasonic transducer and the second end comprising a tip, wherein the elongated probe comprises a Sialon; a purging gas delivery system, wherein the purging gas delivery system comprises a purging gas inlet and a purging gas outlet, wherein the purging gas outlet is at the tip of the elongated probe; and a booster between the ultrasonic transducer and the elongated probe, wherein the purging gas inlet is in the booster. - View Dependent Claims (16, 17)
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Specification