Selected Patents Related to Thermal Spraying
- PDF / 180,775 Bytes
- 5 Pages / 593.972 x 792 pts Page_size
- 60 Downloads / 190 Views
elected Patents Related to Thermal Spraying Issued between October 1, 2010 and December 31, 2010 Prepared by Jirˇı´ Mateˇjı´cˇek, Institute of Plasma Physics, Czech Republic; jmatejic @ipp.cas.cz. Adapted from Thomson Reuters Scientific. CA denotes Canadian patent, DE denotes German patent, EP denotes European patent, GB denotes British patent, KR denotes Korean patent, US denotes United States patent. The information has the following format: Title, Abstract, Patent number, Inventors, Company, Issued/Filed dates.
Applications Method for HVOF or LPPS Restoration Coating Repair of a Nickel-Base Superalloy Article. A method for repairing a nickel-base superalloy article, such as a gas turbine stationary flowpath shroud having flowpath cooling holes therein that has previously been in service, includes the steps of providing the nickel-base superalloy article that has previously been in service; and applying a restoration to a surface of the article. The restoration is applied by the steps of providing a restoration nickelbase alloy, wherein the restoration nickel-base alloy preferably has no more than about 15 wt.% chromium and no more than about 0.01% yttrium, thereafter applying a restoration coating of the restoration nickel-base alloy to the surface of the article by a hyper-velocity oxyfuel metal spray process or a lowpressure plasma spray process, and thereafter heating the article with the restoration coating applied to the surface thereof to a sufficiently high temperature to diffusion bond the restoration coating to the surface of the article. The article is then returned to service. US 7811396: David E. Budinger, Brent R. Tholke, Matthew N. Miller, Jr., W. D. Grossklaus, Joshua L. Miller, and Melvin R. Jackson. Company: General Electric Co. Issued/Filed: 2010-10-12/ 2007-08-27. Drill Bits Comprising Dual-Phase Tungsten Carbide Material. The invention relates to a drill bit containing tungsten carbide powder having powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide.
648—Volume 20(4) June 2011
US 7810587: Christian Gerk and Klause-Dieter Wernicke. Company: H.C. Starck GmbH. Issued/Filed: 201010-12/2009-04-09. Wear Resistant Layer for Downhole Well Equipment. The present disclosure provides a method, system, apparatus, and related alloy to provide a protective wear coating on a downhole component for a well through a synergistic use of a thermal spraying process in combination with a novel iron-based alloy. The thermal spraying process melts the material to be deposited while a pressurized air stream sprays the molten material onto the downhole component. The coating operation takes place at low temperatures without fusion or thermal deterioration to the base material. The wear resistance is increased while providing a lower coefficient of friction by the wear resistant layer relative to a coefficient of friction of the downhole equipment without the wear resistant layer. In at least one embodiment, the disclosed process using the iron-based alloy can apply a much
Data Loading...
