Process for cooling an ingot during continuous casting

Details Process for cooling an ingot during continuous casting Process for cooling an ingot during continuous casting

B - Operations, Transporting

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D

22/185

B22D 7/00 (2006.01) B22D 11/124 (2006.01)

Patent

CA 1201870

A B S T R A C T The cooling of a continuously cast ingot of metal as it em- erges from the mold is carried out by applying coolant dir- ectly to the ingot surface. In order to reduce the amount of curvature at the foot of the ingot due to too rapid cool- ing, a substance which releases a gas as a product of de- composition on striking the hot ingot surface is added to the coolant at least during the initial phase of casting. This gas forms an insulating film on the ingot surface thus re- ducing the rate of heat extraction. Particularly suitable for this purpose are substances which produce carbon dioxide or nitrogen as decomposition product. - 1 -

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