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AssigneeAluminum Company of America
InventorsHo Yu, Douglas L. Bruce, Richard C. Stiffler, David D. Leon, Francis J. Glogowski
Estimating the term…
A method and apparatus for continuously monitoring the cooling capacity of a liquid coolant containing gas bubbles. The apparatus includes a measuring means for measuring the number density of the bubbles to infer the heat transfer characteristics of the liquid coolant, a control means for varying the amount of gas in the liquid coolant so that the number density is within a predetermined range and an electro-acoustic transducer in fluid contact with the liquid coolant capable of generating waves of sufficient intensity to cause cavitation in the liquid coolant in the area of the measuring means. In a preferred embodiment the electro-acoustic transducer is an ultrasonic horn.
A system for monitoring the relative density of a first fluid suspended as bubbles in a second fluid wherein one of said fluids is liquid and the other being gas, said system comprising:
In a method for continuously casting metal ingots using a liquid coolant which includes casting molten metal into an open-ended mold used to form an ingot emerging therefrom, providing a liquid coolant, mixing a gas with said coolant liquid so that said liquid contains gas bubbles, using a light source and light sensor to detect the relative density of said bubbles from the scattering of light, comparing said density to a reference range, varying the amount of gas that is being mixed with said liquid when said density is outside said reference range to bring said density within said reference range, and applying said liquid coolant to said ingot emerging from said mold to effect at least partial solidification of said molten metal the improvement comprising:
A method for controlling the heat exchange capacity of a first liquid containing droplets of a second liquid or bubbles of a gas, said method comprising the steps of:
An apparatus for controlling the transfer capacity of a first liquid coolant containing bubbles of a second liquid, said apparatus comprising:
Dependencies are inferred from the claim text.