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Title: Salvaged castings and methods of salvaging castings with defective cast cooling bumps

Abstract

Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i.e., missing or partially formed bumps during casting, are coated with a braze alloy and cooling enhancement material to salvage the part.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. (Simpsonville, SC)
  2. (Greenville, SC)
  3. (Cincinnati, OH)
  4. (Lincoln City, OR)
  5. (Pownal, VT)
Publication Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874624
Patent Number(s):
US 6426152
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
salvaged; castings; methods; salvaging; defective; cast; cooling; bumps; gas; turbine; exposed; high-temperature; fluid; medium; cast-in; opposite; surface; enhance; heat; transfer; defectively; missing; partially; formed; casting; coated; braze; alloy; enhancement; material; salvage; heat transfer; gas turbine; fluid medium; temperature fluid; /428/29/228/427/

Citation Formats

Johnson, Robert Alan, Schaeffer, Jon Conrad, Lee, Ching-Pang, Abuaf, Nesim, and Hasz, Wayne Charles. Salvaged castings and methods of salvaging castings with defective cast cooling bumps. United States: N. p., 2002. Web.
Johnson, Robert Alan, Schaeffer, Jon Conrad, Lee, Ching-Pang, Abuaf, Nesim, & Hasz, Wayne Charles. Salvaged castings and methods of salvaging castings with defective cast cooling bumps. United States.
Johnson, Robert Alan, Schaeffer, Jon Conrad, Lee, Ching-Pang, Abuaf, Nesim, and Hasz, Wayne Charles. Tue . "Salvaged castings and methods of salvaging castings with defective cast cooling bumps". United States. https://www.osti.gov/servlets/purl/874624.
@article{osti_874624,
title = {Salvaged castings and methods of salvaging castings with defective cast cooling bumps},
author = {Johnson, Robert Alan and Schaeffer, Jon Conrad and Lee, Ching-Pang and Abuaf, Nesim and Hasz, Wayne Charles},
abstractNote = {Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i.e., missing or partially formed bumps during casting, are coated with a braze alloy and cooling enhancement material to salvage the part.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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