The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2003
Filed:
May. 15, 2000
Applicant:
Inventor:
Sanjib Chakraborty, Southgate, MI (US);
Assignee:
National Steel Corporation, Mishawaka, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 1/110 ; B22D 4/100 ; C22B 9/10 ;
U.S. Cl.
CPC ...
B22D 1/110 ; B22D 4/100 ; C22B 9/10 ;
Abstract
A process for continuously casting steel wherein liquid steel is teemed from a ladle through a shroud into the pour box section of a tundish and poured from the tundish through one or more outlets remote from the pour box, and wherein the surface of the steel in the tundish is covered with a first flux in the area of the pour box and with a second flux in the remaining areas of the tundish. The flux used in the pour box area has a higher melting temperature than the flux used in the remaining areas. Preferably all fluxes used are basic fluxes containing CaO and Al O .