| http://www.w3.org/ns/prov#value | - Another aspect of the present invention is a method for continuously casting metal ingots using a liquid coolant, the method comprising the steps of: (a) casting molten metal into an open-ended mold used to form an ingot which emerges therefrom; (b) providing a liquid coolant; (c) mixing a gas with the liquid coolant so that the liquid coolant contains gas bubbles; (d) passing light through the li
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