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:
Oct. 02, 2018
Filed:
Jul. 14, 2010
Karl-heinz Spitzer, Clausthal, DE;
Volker Flaxa, Salzgitter, DE;
Joachim Kroos, Meine, DE;
Hellfried Eichholz, Ilsede, DE;
Markus Schäperkötter, Braunschweig, DE;
Rune Schmidt-jürgensen, Hannover, DE;
Karl-Heinz Spitzer, Clausthal, DE;
Volker Flaxa, Salzgitter, DE;
Joachim Kroos, Meine, DE;
Hellfried Eichholz, Ilsede, DE;
Markus Schäperkötter, Braunschweig, DE;
Rune Schmidt-Jürgensen, Hannover, DE;
Salzgitter Flachstahl GmbH, Salzgitter, DE;
Abstract
In a method for producing a hot strip of steel with material properties that are adjustable over the strip cross-section, a steel melt is fed onto a revolving casting belt of a horizontal strip casting facility and solidifies to form a pre-strip having a thickness between 6 and 20 mm, and the pre-strip is subjected to a hot rolling process after complete solidification. A gas jet or plasma jet composed of metallic and/or non-metallic elements that affect the material properties of the hot strip influences the steel melt that is still liquid and/or just about to start to solidify. The concentration of the elements introduced into the melt by the gas jet or plasma jet and diffusing into the melt is adjusted across the strip thickness and strip width by changing the influencing kinetic energy of the gas jet or plasma jet, the partial gas pressure and/or the applied temperature.