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.

Date of Patent:
Apr. 26, 2016

Filed:

Jan. 11, 2007
Applicants:

Herbert Eichelkraut, Kempen, DE;

Hans-joachim Heiler, Moers, DE;

Werner Högner, Essen, DE;

Fred Jindra, Lennestadt, DE;

Rainhard Paul, Asendorf, DE;

Ola Ritzén, Åkersberga, SE;

Inventors:

Herbert Eichelkraut, Kempen, DE;

Hans-Joachim Heiler, Moers, DE;

Werner Högner, Essen, DE;

Fred Jindra, Lennestadt, DE;

Rainhard Paul, Asendorf, DE;

Ola Ritzén, Åkersberga, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/02 (2006.01); F27D 19/00 (2006.01); C21D 1/52 (2006.01); C21D 9/46 (2006.01); C21D 9/56 (2006.01); F26B 25/00 (2006.01); C21D 9/63 (2006.01); C21D 11/00 (2006.01); F27D 99/00 (2010.01);
U.S. Cl.
CPC ...
F27D 19/00 (2013.01); C21D 1/52 (2013.01); C21D 9/46 (2013.01); C21D 9/561 (2013.01); C21D 9/63 (2013.01); C21D 11/00 (2013.01); F27D 99/0033 (2013.01);
Abstract

The invention provides a process for the heat treatment of steel products, in particular of steel strips or sheets, in which the product is brought from a starting temperature to a target temperature in a booster zone having at least one burner; the burner is operated with a fuel, in particular a fuel gas, and an oxygen-containing gas which contains more than 21% oxygen; and the product is brought into direct contact with the flame generated by the burner, the air ratio λ within the flame being set as a function of the starting temperature and/or the target temperature.


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