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:
Mar. 24, 2015

Filed:

Dec. 13, 2010
Applicants:

Donald James Bowe, Zionsville, PA (US);

Anna K. Wehr-aukland, Macungie, PA (US);

John Lewis Green, Palmerton, PA (US);

Inventors:

Donald James Bowe, Zionsville, PA (US);

Anna K. Wehr-Aukland, Macungie, PA (US);

John Lewis Green, Palmerton, PA (US);

Assignee:

Air Products and Chemicals, Inc., Allentown, PA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 33/02 (2006.01); B22F 3/10 (2006.01); C21D 1/76 (2006.01); F27D 7/06 (2006.01); F27B 21/06 (2006.01);
U.S. Cl.
CPC ...
B22F 3/1007 (2013.01); B22F 3/1017 (2013.01); F27D 7/06 (2013.01); F27B 21/06 (2013.01); B22F 2999/00 (2013.01);
Abstract

Disclosed herein is a method and gas atmosphere for a metal component in a continuous furnace. In one embodiment, the method and gas atmosphere comprises the use of an effective amount, or about 1 to about 10 percent volume of endo-gas, into an atmosphere comprising nitrogen and hydrogen. In another embodiment, there is provided a method sintering metal components in a furnace at a one or more operating temperatures comprising: providing a furnace comprising a belt comprising a wire mesh material wherein the metal components are supported thereupon; and sintering the components in the furnace in an atmosphere comprising nitrogen, hydrogen, and effective amount of endothermic gas at the one or more operating temperatures ranging from about 1800° F. to about 2200° F. wherein the amount of endothermic gas in the atmosphere is such that it is oxidizing to the wire mesh material and reducing to the metal components.


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