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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.:

US 10253400 B1

PDFFull Text
Date of Patent:
Apr. 09, 2019

Filed:

Mar. 01, 2013

Heat-resistant bearing material made of an austenitic iron matrix alloy

Applicant:

Mahle International Gmbh, Stuttgart, DE;

Inventors:

Lutz Steinert, Schopfheim, DE;

Klaus Wintrich, Schopfheim, DE;

Assignee:

Mahle International GmbH, , DE;

Attorney:

Fishman Stewart PLLC

Primary Examiner:

Christopher S Kessler

Int. Cl.
CPC ...
C22C 38/60 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); F16C 33/12 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/34 (2006.01); C22C 38/46 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01); C22C 38/02 (2006.01);
U.S. Cl.
CPC ...
C22C 38/60 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/34 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); F16C 33/121 (2013.01); C21D 2211/003 (2013.01); F16C 2204/66 (2013.01); F16C 2300/54 (2013.01); F16C 2360/22 (2013.01);
Abstract

A heat-resistant bearing material may include an austenitic iron matrix alloy having a proportion of sulphur sufficient to achieve a solid lubricating action on bearing surfaces of the heat-resistant bearing material. The iron matrix alloy may have a proportion of carbides to achieve a reduction of wear on bearing surfaces of the heat-resistant bearing material and a proportion of 1 to 6 percentage by weight of at least one alloying element including cobalt, niobium, rhenium, tantalum, vanadium, tungsten, hafnium, yttrium and zirconium. The iron matrix alloy may also include the following alloying elements: carbon, chromium, manganese, silicon, nickel, molybdenum, niobium, tungsten, sulphur, copper, nitrogen and iron.

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