Specialized metallurgical processes – compositions for use therei – Processes – Process control responsive to sensed condition
Reexamination Certificate
2007-05-01
2007-05-01
Kastler, Scott (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Process control responsive to sensed condition
C266S079000, C266S099000
Reexamination Certificate
active
11148796
ABSTRACT:
A system for determining process parameters for the ladle refinement of steel includes a computer executing a number of software algorithms for determining one or more process parameters for various steel refinement process steps. In one embodiment, for example, the computer is configured to determine the total amount of flux additions to achieve a desired sulfur percentage as part of a steel desulfurization process. In another embodiment, the computer is configured to determine the total quantity of oxygen to be injected into the steel as part of a steel reoxidation process. In still another embodiment, the computer is configured to determine a melting temperature of inclusions within the refined steel, and to determine whether this melting temperature is within an acceptable range to successfully process the steel in a continuous steel strip casting apparatus/process, or whether the steel must be reworked to achieve an acceptable inclusion melting temperature.
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“The Making, Shaping and Treating of Steel” 10th edition, Lankford et al, pp. 671 and 672, Dec. 1985.
Blejde Walter
Mahapatra Rama
Sommer Joel
Sosinsky Dave
Story Scott
Hahn Loeser & Parks LLP
Kastler Scott
Nucor Corporation
Stein Arland T.
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