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1. (WO2015047783) METHOD OF SIMULTANEOUSLY APPLYING THREE DIFFERENT DIFFUSION ALUMINIDE COATINGS TO A SINGLE PART
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/047783 International Application No.: PCT/US2014/055771
Publication Date: 02.04.2015 International Filing Date: 16.09.2014
IPC:
C23C 16/44 (2006.01) ,C23C 16/12 (2006.01)
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16
Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
44
characterised by the method of coating
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16
Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
06
characterised by the deposition of metallic material
08
from metal halides
12
Deposition of aluminium only
Applicants:
UNITED TECHNOLOGIES CORPORATION [US/US]; One Financial Plaza Hartford, Connecticut 06103, US
Inventors:
LIVINGS, Mark A.; US
Agent:
KOENCK, Alan M.; US
Priority Data:
61/881,73224.09.2013US
Title (EN) METHOD OF SIMULTANEOUSLY APPLYING THREE DIFFERENT DIFFUSION ALUMINIDE COATINGS TO A SINGLE PART
(FR) PROCÉDÉ D'APPLICATION SIMULTANÉE DE TROIS REVÊTEMENTS DIFFÉRENTS DE COMPOSÉ D'ALUMINIUM PAR DIFFUSION SUR UNE SEULE PIÈCE
Abstract:
(EN) A method of simultaneously applying three different diffusion aluminide coatings to a metal part with an external surface and internal passageways includes first placing the part in an enclosed retort. Areas of the part are then coated with aluminum containing slurry for a first diffusion aluminide coating. Interior walls of the retort are then coated with a vapor source slurry for a second vapor phase aluminide coating on the surface of the part. Areas on the surface of the part not requiring coating are coated with masking materials. A closed chamber inside the retort containing source material for a third vapor phase diffusion aluminide coating for the internal passageways is then attached to the internal passageways. The retort is then placed in a furnace under a protective atmosphere and subjected to a diffusion heat treat to coat the external surfaces and internal passageways with the three different aluminide coatings.
(FR) L'invention porte sur un procédé d'application simultanée de trois revêtements différents d'un composé d'aluminium par diffusion sur une pièce métallique présentant une surface externe et des voies de passage internes, ledit procédé comprenant d'abord le placement de la pièce dans un autoclave fermé. Des zones de la pièce sont ensuite enduites d'une suspension épaisse contenant de l'aluminium pour un premier revêtement d'un composé d'aluminium par diffusion. Les parois intérieures de l'autoclave sont ensuite enduites d'une suspension épaisse source de vapeur pour un deuxième revêtement d'un composé d'aluminium en phase vapeur sur la surface de la pièce. Des zones sur la surface de la pièce ne nécessitant pas de revêtement sont recouvertes de matériaux de masquage. Une chambre fermée à l'intérieur de l'autoclave contenant le matériau source pour un troisième revêtement de composé d'aluminium par diffusion en phase vapeur pour les voies de passage interne est ensuite fixée aux voies de passage internes. L'autoclave est ensuite placé dans un four dans une atmosphère protectrice et soumis à un traitement thermique par diffusion pour revêtir les surfaces externes et les voies de passage internes des trois revêtements différents du composé d'aluminium.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)