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1. (WO2007006946) METHOD FOR THE PRESSURE-FREE SINTERING OF METAL ALLOYS AND USE THEREOF IN THE PRODUCTION OF HOLLOW SPHERES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/006946 International Application No.: PCT/FR2006/001645
Publication Date: 18.01.2007 International Filing Date: 07.07.2006
IPC:
B22F 5/10 (2006.01) ,B22F 7/06 (2006.01) ,B23K 35/36 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
5
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
10
of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
7
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
06
of composite workpieces or articles from parts, e.g. to form tipped tools
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35
Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22
characterised by the composition or nature of the material
36
Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
Applicants:
ONERA (OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES) [FR/FR]; 29, Avenue de la Division Leclerc F-92320 Chatillon, FR (AllExceptUS)
NADLER, Jason [FR/FR]; FR (UsOnly)
JOSSO, Pierre [FR/FR]; FR (UsOnly)
BACOS, Marie-Pierre [FR/FR]; FR (UsOnly)
PAUN, Florin [FR/FR]; FR (UsOnly)
Inventors:
NADLER, Jason; FR
JOSSO, Pierre; FR
BACOS, Marie-Pierre; FR
PAUN, Florin; FR
Agent:
BEZAULT, Jean; Cabinet Netter 36, Avenue Hoche F-75008 Paris, FR
Priority Data:
050725607.07.2005FR
Title (EN) METHOD FOR THE PRESSURE-FREE SINTERING OF METAL ALLOYS AND USE THEREOF IN THE PRODUCTION OF HOLLOW SPHERES
(FR) PROCEDE DE FRITTAGE SANS PRESSION D'ALLIAGES METALLIQUES ; APPLICATION A LA FABRICATION DE SPHERES CREUSES
Abstract:
(EN) The invention relates to a method for the pressure-free sintering of metal alloys and to the use thereof in the production of hollow spheres. According to the invention, hollow metal spheres are heated under a high vacuum in the presence of an organic material to a temperature close to the melting temperature of a eutectic between carbon from the organic material and the metal components of said spheres.
(FR) On chauffe des sphères creuses métalliques sous un vide poussé, en présence d'une matière organique, à une température voisine de la température de fusion d'un eutectique entre le carbone issu de la matière organique et les constituants métalliques desdites sphères .
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP1907153JP2008545064RU02401718CA2614007FR2888141