Liquid metal heating and casting ladle
AssigneesSeva Chalon-Sur-Saone, Otter Junker GmbH
InventorsJean-Louis Comarteau, Alain Remy, Dieter Schluckebier
Life of this patent
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Abstract
A ladle (1) comprising a main portion (5), an outlet (3) and an inductor assembly (2) fitted onto the main portion. The main portion comprises a cavity (13) defined by a refractory lining, provided with at least one opening (21) and shaped so that no pockets of molten metal remain after pouring. Consequently, the metal flows more readily, and hot deslagging and metal temperature measurement are made easier. The ladle is useful for maintaining the temperature of high melting point metals such as steel or superalloys for processes requiring metal sampling.
Claims14
Ladle (1) designed to hold metal (4) at constant temperature, comprising a main element (5) incorporating a cavity (13) delimited by a heat-resistant lining (12) and designed to be filled with molten metal, said cavity incorporating at least one filling opening (21), a metal-outlet orifice (3) connecting with said cavity, and metal-heating means (2), wherein said cavity (13) comprises a heel zone and a reserve zone (15), the volume of the heel zone being less than the volume of the reserve zone, said cavity (13) incorporating a shape wherein a straight line can be drawn through the cavity (13) from any point within the cavity to the opening (21) so as to exclude dead angles thereby promoting the displacement of the liquid metal (4) and allowing access to every point of the cavity through said filling opening (21) in the reserve zone (15), in order to heat-clean the ladle (1).
Ladle (1) designed to hold metal (4) at constant temperature, comprising a main element (5) incorporating a cavity (13) delimited by a heat-resistant lining (12) and designed to be filled with molten metal, said cavity incorporating at least one filling opening (21), a metal-outlet orifice (3) connected with said cavity, and metal-heating means (2), wherein said cavity (13) comprises a heel zone and a reserve zone (15), the volume of the heel zone being less than the volume of the reserve zone, said cavity (13) incorporating a shape which excludes dead angles so as to promote the displacement of the liquid metal (4) and allowing access to every point of the cavity through said filling opening (21) which is incorporated in the reserve zone (15), in order to heat-clean the ladle (1), wherein:
- said cavity (13) comprises a filling cylinder (16) ending in said filling opening (21), and the liquid metal reserve zone (15) is connected with said filling cylinder (16), with a main cylinder (14), and with the outlet orifice (3);
- said main and filling cylinders (14,16) have parallel axes (Y--Y, Y'--Y'), the axis (Y'--Y') of the filling cylinder (16) being offset upward in relation to the axis (Y--Y) of the main cylinder (14);
- and
- the filling cylinder (16) has a diameter greater than the diameter of the main cylinder (14) so as to form the liquid metal reserve zone (15), said reserve zone (15) being connected to the main cylinder (14) by a connection zone (18) having a substantially truncated shape incorporating rounded segments (19,20).
Ladle (1) designed to hold metal (4) at constant temperature, comprising a main element (5) incorporating a cavity (13) delimited by a heat-resistant lining (12) and designed to be filled with molten metal, said cavity incorporating at least one filling opening (21), a metal-outlet orifice (3) connected with said cavity, and metal-heating means (2), wherein said cavity (13) comprises a heel zone and a reserve zone (15), the volume of the heel zone being less than the volume of the reserve zone, said cavity (13) incorporating a shape which excludes dead angles so as to promote the displacement of the liquid metal (4) and allowing access to every point of the cavity through said filling opening (21) which is incorporated in the reserve zone (15), in order to heat-clean the ladle (1), wherein:
- said cavity (13) comprises a filling cylinder (16) ending in said filling opening (21), and the liquid metal reserve zone (15) is connected with said filling cylinder (16), with a main cylinder (14), and with the outlet orifice (3);
- and
- said heating means (2) comprise an induction coil (8) surrounding a cylindrical heating zone (6) having the same axis (Y--Y), and the same diameter, as the main cylinder (14), and said heating means are mounted detachably on the main element (5).
Dependencies are inferred from the claim text.