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1. WO2000042230 - METHOD FOR PRODUCING HARD METAL MIXTURES

Publication Number WO/2000/042230
Publication Date 20.07.2000
International Application No. PCT/EP2000/000043
International Filing Date 05.01.2000
Chapter 2 Demand Filed 29.06.2000
IPC
B01F 7/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles; Kneaders
B01F 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
9Mixers with rotating receptacles
B01F 9/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
9Mixers with rotating receptacles
02rotating about a horizontal or inclined axis, e.g. drum mixers
08with rotating stirring devices
B01F 15/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
15Accessories for mixers
C22C 1/05 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making non-ferrous alloys
04by powder metallurgy
05Mixtures of metal powder with non-metallic powder
CPC
B01F 15/00012
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
15Accessories for mixers ; ; Auxiliary operations or auxiliary devices; Parts or details of general application
00006Mixing heads comprising a driven stirrer
00012the stirrer being provided with a surrounding stator
B01F 2009/0063
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
9Mixers with rotating receptacles, ; i.e. the rotary motion is imparted to effect the mixing
0056Constructional aspects of the rotating receptacles
0058Disposition of the rotor axis
0063inclined
B01F 7/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
16with stirrers rotating about a substantially vertical axis
B01F 9/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
9Mixers with rotating receptacles, ; i.e. the rotary motion is imparted to effect the mixing
02rotating about a horizontal or inclined axis, e.g. drum mixers
08with ; moving, e.g.; rotating stirring devices ; , i.e. moving with respect to the receptacle
B22F 2999/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2999Aspects linked to processes or compositions used in powder metallurgy
C22C 1/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
04by powder metallurgy
05Mixtures of metal powder with non-metallic powder
Applicants
  • H.C. STARCK GMBH & CO KG. [DE/DE]; Im Schleeke 78-91 D-38642 Goslar, DE (AE, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CR, CU, CY, CZ, DE, DK, DM, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW)
  • GRIES, Benno [DE/DE]; DE (UsOnly)
  • BREDTHAUER, Jörg [DE/DE]; DE (UsOnly)
Inventors
  • GRIES, Benno; DE
  • BREDTHAUER, Jörg; DE
Agents
  • DROPE, Rüdiger; Bayer AG D-51368 Leverkusen, DE
Priority Data
199 01 305.515.01.1999DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON HARTMETALLMISCHUNGEN
(EN) METHOD FOR PRODUCING HARD METAL MIXTURES
(FR) PROCEDE POUR PRODUIRE DES MELANGES DE METAUX DURS
Abstract
(DE)
Es wird ein Verfahren zur Herstellung einer homogenen Mischung von Hartstoff- und Bindermetallpulvern ohne Einsatz von Mahlkörpern und flüssigen Mahlhilfsmitteln und Suspendiermedien beschrieben, wobei die Mischungsbestandteile im Nahbereich unter Erzeugung hoher scherender Aufprallgeschwindigkeit der Pulverteilchen und im Fernbereich durch Umwälzung des Mischungsbettes ohne Kornzerkleinerung der Hartstoffpulver vermischt werden.
(EN)
The invention relates to a method for producing a homogeneous mixture of hard material powders and binder metal powders without using grinding bodies, liquid grinding auxiliary agents and suspending media. According to the invention, the mixture components are mixed at close range while generating a high shearing collision velocity of the powder particles and are remotely mixed by rotating the mixing bed without resulting in a particle size reduction of the hard material powders.
(FR)
L'invention concerne un procédé permettant de produire un mélange homogène de substances pulvérulentes dures et de poudres métalliques liantes sans utiliser d'élément broyeur et d'auxiliaires de broyage liquides et de substances à pouvoir suspensif. Les constituants du mélange sont mélangés dans une quantité partielle, ce qui entraîne une vitesse d'impact élevée à effet de cisaillement des particules de poudre et dans une quantité principale, par brasage du lit de mélange sans comminution des particules de la substance pulvérulente dure.
Also published as
CZPV2001-2376
ININ/PCT/2001/00792/MUM
ZA200105109
Latest bibliographic data on file with the International Bureau