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:
Apr. 02, 2019
Filed:
Jan. 18, 2017
Applicant:
Swagelok Company, Solon, OH (US);
Inventors:
Sunniva R. Collins, Cleveland Heights, OH (US);
Gerhard H. Schiroky, Aurora, OH (US);
Steven V. Marx, University Heights, OH (US);
Peter C. Williams, Cleveland Heights, OH (US);
Assignee:
SWAGELOK COMPANY, Solon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/22 (2006.01); C21D 6/00 (2006.01); C21D 1/74 (2006.01); C21D 1/773 (2006.01); C21D 1/06 (2006.01);
U.S. Cl.
CPC ...
C23C 8/22 (2013.01); C21D 1/06 (2013.01); C21D 1/74 (2013.01); C21D 1/773 (2013.01); C21D 6/00 (2013.01); C21D 6/001 (2013.01); C21D 6/002 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01);
Abstract
Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.