EP0209179B1 - Préparation d'une poudre composite par alliage mécanique - Google Patents

Préparation d'une poudre composite par alliage mécanique Download PDF

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Publication number
EP0209179B1
EP0209179B1 EP86201163A EP86201163A EP0209179B1 EP 0209179 B1 EP0209179 B1 EP 0209179B1 EP 86201163 A EP86201163 A EP 86201163A EP 86201163 A EP86201163 A EP 86201163A EP 0209179 B1 EP0209179 B1 EP 0209179B1
Authority
EP
European Patent Office
Prior art keywords
grinding
drum
axis
rotation
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86201163A
Other languages
German (de)
English (en)
Other versions
EP0209179A1 (fr
Inventor
Manfred Dr. Rühle
Peter Prof. Dr. Wincierz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0209179A1 publication Critical patent/EP0209179A1/fr
Application granted granted Critical
Publication of EP0209179B1 publication Critical patent/EP0209179B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/14—Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling

Definitions

  • the invention relates to a method for producing a mechanically alloyed composite powder by grinding at least one metallic powder with at least one non-metallic powder or of metallic powders, the components of which are incomplete or not soluble in one another in the liquid state, in a drum mill with high energy input into the Regrind, possibly under control of the atmospheric and / or temperature conditions.
  • the process of mechanical alloying allows the production of composite powders which consist of a dispersion of the finest metallic or non-metallic particles with a small particle spacing in a metallic matrix.
  • the method is used for the production of such alloys, the components of which are not sufficiently soluble in one another in the molten state and / or which are subject to undesirable oozing out during solidification.
  • metallic powders and one or more components such as. B. ground high-melting oxide powder or another metal powder in a drum mill with high energy input. The powder particles are rolled out and / or crushed into thin foils by the grinding media and at the same time the thin foils are welded together again and again.
  • the solution to this problem consists in the use of a centrifugal mill with a cylindrical grinding drum which rotates about its own axis and at the same time rotates on a rotating circle with a constant rotation ratio around a fixed axis of rotation parallel to the axis of the grinding drum and with a drive mechanism for rotating the grinding drum the drum axis and for rotation on the rotation circle of the axis of the grinding drum is provided.
  • the center of rotation lies within the cross section of the grinding vessel.
  • the grinding vessel itself does not make any rotational movement about its own axis.
  • centrifugal mill known from DE-OS 26 31 826, which has no critical speed, uses up to 30 times the acceleration due to gravity for grinding, in contrast to the mills described above in relation to the prior art. This leads to a much higher energy density in the mill and thus to a much smaller design.
  • the centrifugal mill has so far been used for grinding mineral raw materials and other products to high fineness and specific surfaces due to their high efficiency and for fine grinding coal in coal / water or coal / oil suspensions.
  • the very good mixing effect due to the high effective centrifugal forces has a positive effect here. Since there are no complicated sprockets and pinions, wear is correspondingly lower.
  • the degree of filling is expediently 30 to 90% with a throughput of 0.01 to 1.5 t / h.
  • the high plastic deformation is of predominant importance for the mechanically alloyed composite powders produced in the centrifugal mill, which results in the high hardness of the powder particles.
  • the composite powders can be compacted by extrusion and, if necessary, then heat-treated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Crushing And Grinding (AREA)

Claims (3)

1. Procédé de préparation d'une poudre composite, par alliage mécanique, en broyant au moins une poudre métallique avec au moins une poudre non métallique ou de poudres métalliques dont les constituants sont imparfaitement, ou pas du tout, solubles l'un dans l'autre à l'état liquide, dans un broyeur à tambour, avec grand apport d'énergie au produit broyé, le cas échéant avec contrôle des conditions atmosphérique et/ou de la température, caractérisé en ce qu'il consiste à utiliser un broyeur centrifuge à tambour de broyage de forme cylindrique, qui tourne autour de son propre axe et, en même temps, sur un cercle de rotation avec un rapport de rotation constant autour d'un axe de rotation fixe et parallèle à l'axe du tambour, et comportant un mécanisme d'entraînement pour la rotation du tambour de broyage autour de l'axe du tambour, et pour la rotation sur le cercle de rotation de l'axe du tambour du broyeur.
2. Procédé suivant la revendication 1, caractérisé en ce que le taux de chargement est de 30 à 90%.
3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que le débit est compris entre 0,01 et 1,5 tonne/heure.
EP86201163A 1985-07-13 1986-07-02 Préparation d'une poudre composite par alliage mécanique Expired EP0209179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853525056 DE3525056A1 (de) 1985-07-13 1985-07-13 Verfahren zur herstellung eines mechanisch legierten verbundpulvers
DE3525056 1985-07-13

Publications (2)

Publication Number Publication Date
EP0209179A1 EP0209179A1 (fr) 1987-01-21
EP0209179B1 true EP0209179B1 (fr) 1988-12-21

Family

ID=6275698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201163A Expired EP0209179B1 (fr) 1985-07-13 1986-07-02 Préparation d'une poudre composite par alliage mécanique

Country Status (4)

Country Link
US (1) US4706894A (fr)
EP (1) EP0209179B1 (fr)
JP (1) JPS6220802A (fr)
DE (2) DE3525056A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741119A1 (de) * 1987-12-04 1989-06-15 Krupp Gmbh Erzeugung von sekundaerpulverteilchen mit nanokristalliner struktur und mit versiegelten oberflaechen
JPH0720441B2 (ja) * 1988-02-10 1995-03-08 ローマン商事株式会社 皮革しぼ跡を形成したプラスチックヒールの製造方法
DE3813224A1 (de) * 1988-04-20 1988-08-25 Krupp Gmbh Verfahren zur einstellung feinstkristalliner bis nanokristalliner strukturen in metall-metallmetalloid-pulvern
DE3925973A1 (de) * 1989-08-05 1991-02-07 Eckart Standard Bronzepulver Verfahren zur herstellung eines alpb-pulvers
JP2560565B2 (ja) * 1991-04-23 1996-12-04 株式会社栗本鐵工所 水素吸蔵合金の製造方法
DE4343106C2 (de) * 1992-12-23 1995-12-07 Deutsche Forsch Luft Raumfahrt Mechanisches Legieren von spröden und harten Materialien mittels Planetenmühlen
DE4418598C2 (de) * 1994-05-27 1998-05-20 Fraunhofer Ges Forschung Verfahren zur Herstellung einer hochdispersen Pulvermischung insbesondere zur Herstellung von Bauteilen aus schwer sinterbaren Werkstoffen mit intermetallischen Phasen
WO2002100548A2 (fr) * 2001-06-13 2002-12-19 Inhale Therapeutic Systems, Inc. Tambour rotatif centrifuge pour traiter les poudres cohesives
GB2511111B (en) * 2013-02-25 2015-08-19 Chinook End Stage Recycling Ltd Improvements in Waste Processing
FR3055813B1 (fr) 2016-09-09 2020-06-26 H.E.F Poudre multimateriaux a grains composites pour la synthese additive
LU101177B1 (en) 2019-04-16 2020-10-16 Delmee Maxime Functionalized metal powders by small particles made by non-thermal plasma glow discharge for additive manufacturing applications

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151665B (de) * 1958-12-09 1963-07-18 Mond Nickel Co Ltd Verfahren zur Steigerung der Korngroesse von Karbonyl-Nickelpulver, Karbonyl-Eisenpulver oder Kupferpulver
US2995780A (en) * 1958-12-09 1961-08-15 Int Nickel Co Treatment of metal powder
US3723092A (en) * 1968-03-01 1973-03-27 Int Nickel Co Composite metal powder and production thereof
US3529780A (en) * 1968-05-08 1970-09-22 Cecil H Wilkinson Jr Planetary grinding mill
SU814453A1 (ru) * 1979-04-12 1981-03-23 Государственный Научно-Исследовательскийи Проектно-Конструкторский Институтгидрометаллургии Цветных Металлов Планетарна мельница

Also Published As

Publication number Publication date
EP0209179A1 (fr) 1987-01-21
JPS6220802A (ja) 1987-01-29
DE3525056A1 (de) 1987-01-22
DE3661463D1 (en) 1989-01-26
US4706894A (en) 1987-11-17

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