Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1995-12-26
1997-11-11
Warden, Jill
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
134 19, 134 2213, 134 2214, 134 29, 164132, B08B 310
Patent
active
056859171
ABSTRACT:
The invention is a process for removing oxides, dirt, and organic impurities during repair of airfoils without damaging or effecting surface bond coats or base metal substrates of the airfoils. The process is especially suited for cleaning deep, tortuous cracks in the airfoils prior to brazing or alloying repair operations. The process entails using an autoclave with an organic caustic solution to fully remove the unwanted oxides, dirt, and organic impurities.
REFERENCES:
patent: 3502503 (1970-03-01), Bartlo
patent: 3553015 (1971-01-01), Dohogne
patent: 4317685 (1982-03-01), Ahuja et al.
patent: 4439241 (1984-03-01), Ault et al.
patent: 4713120 (1987-12-01), Hodgens, II et al.
patent: 5464479 (1995-11-01), Kenton et al.
"Metal Cleaning" Bibliographical Abstracts--1842-1951 by J.C. Harris, pp. 41 &98.
Chaudhry Saeed
General Electric Company
Johnson Noreen C.
Pittman William H.
Warden Jill
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