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:
Sep. 17, 1991
Filed:
Aug. 07, 1989
Applicant:
Inventors:
James C Dunmire, Longwood, FL (US);
Samuel D Reynolds, Jr, Oviedo, FL (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 7614 ; 2191 / ;
Abstract
Methods for providing erosion resistant surfaces to carbon steel turbine components are provided by this invention. The methods include welding a steel weldment comprising at least 12 wt. % Cr. on to a carbon steel steam turbine component at a welding speed of about 24-52 inches, 61-132 cm, per minute in a nominal first pass thickness of less than about 0.1 inches, 0.25 cm. Preferred flux-cord-arc welding (FCAW) techniques are disclosed for vertical down, overhead, horizontal and flat surfacing positions.