| (19) |
 |
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(11) |
EP 1 548 156 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.01.2010 Bulletin 2010/02 |
| (43) |
Date of publication A2: |
|
29.06.2005 Bulletin 2005/26 |
| (22) |
Date of filing: 09.12.2004 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI
SK TR |
|
Designated Extension States: |
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AL BA HR LV MK YU |
| (30) |
Priority: |
16.12.2003 US 707465
|
| (71) |
Applicant: GENERAL ELECTRIC COMPANY |
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Schenectady, NY 12345 (US) |
|
| (72) |
Inventors: |
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- Rosenzweig, Mark Alan
Liberty Township
Ohio 45011 (US)
- Pfaendtner, Jeffrey Allan
Blue Ash
Ohio 45242 (US)
|
| (74) |
Representative: Goode, Ian Roy et al |
|
London Patent Operation
General Electric International, Inc.
15 John Adam Street
London
WC2N 6LU
London
WC2N 6LU (GB) |
|
| |
|
| (54) |
Process for removing adherent oxide particles from an aluminized surface |
(57) A process for removing particles that become adherently sintered to an aluminized
surface during an aluminiding process. The method is particularly suited for the removal
of adherent particles that form as a result of oxidation of a metallic powder used
as an aluminum source during slurry aluminiding processes, wherein the adherent particles
become attached by sintering to the aluminized surface. The process includes contacting
the aluminized surface with an aqueous caustic hydroxide solution until the particles
are removed therefrom.