Process of introducing a solid addition into a bath of liquid metal
AssigneeSociete Francaise d'Electrometallurgie Sofrem
InventorsPierre Borgeaud, Andre Vilain
Life of this patent
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Abstract
A process for introducing into a metal bath an additive in the form of a solid shaped in the form of an elongate body portion having at least two vanes extending outwardly therefrom for a distance of not more than 40 mm with the vanes dimensioned and spaced one from the other to avoid interlocking thereby to enable the desired effect to be derived from the addition as rapidly as possible, including the shaped additive and method.
Claims10
A process for dissolution into a bath of liquid metal or alloy an additive in the form of a solid from which an effect is desired to be provided by dissolution as rapidly as possible comprising providing the additive as shaped solids having a density below that of the liquid metal of the bath and having an elongate solid body portion which is tapered from one end to the other throughout its length with at least two vanes extending perpendicularly outwardly from the central body portion from equally spaced apart portions of the central body portion and continuously throughout the length thereof said vanes having a width greater than the spacing between adjacent vanes such as to avoid interlock between a vane of one solid and the void between adjacent vanes of an adjacent solid and thereby to provide a block which is less fragile and which maximizes surface to surface for dissolution, positioning the solid in the bottom portion of the bath, and releasing the solid in the bottom portion of the bath to enable the solid to rise through the bath for dissolution during its rise through the bath.
Dependencies are inferred from the claim text.