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:
May. 21, 2019

Filed:

Aug. 14, 2015
Applicant:

Iva Schmetz Gmbh, Menden, DE;

Inventors:

Heinrich-Peter Lankes, Schwalmtal, DE;

Peter Haase, Isselburg, DE;

Dirk Miller, Bocholt, DE;

Assignee:

IVA SCHMETZ GMBH, Menden, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/00 (2006.01); F27B 3/24 (2006.01); C23C 8/24 (2006.01); C23C 8/30 (2006.01); C23G 1/08 (2006.01); F27D 1/00 (2006.01); C25F 3/24 (2006.01); B23K 31/02 (2006.01); C23C 8/26 (2006.01); C23C 22/50 (2006.01); F27B 5/04 (2006.01);
U.S. Cl.
CPC ...
C21D 9/0043 (2013.01); B23K 31/027 (2013.01); C23C 8/24 (2013.01); C23C 8/26 (2013.01); C23C 8/30 (2013.01); C23C 22/50 (2013.01); C23G 1/085 (2013.01); C23G 1/086 (2013.01); C25F 3/24 (2013.01); F27B 5/04 (2013.01); F27D 1/0006 (2013.01);
Abstract

A method for producing a retort for a nitriding furnace, in which metallic workpieces are heat-treated in a pre-determined atmosphere, includes pickling at least the surfaces of the retort, which are configured to come into contact with the pre-determined atmosphere while the nitriding furnace is operating, by using a pickling agent. The pickled surfaces may then be electropolished and passivated. A retort may be produced according to this method and the retort may be used in a nitriding furnace.


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