WO2010139614A1 - Verfahren zur verarbeitung von metallpulver - Google Patents

Verfahren zur verarbeitung von metallpulver Download PDF

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Publication number
WO2010139614A1
WO2010139614A1 PCT/EP2010/057383 EP2010057383W WO2010139614A1 WO 2010139614 A1 WO2010139614 A1 WO 2010139614A1 EP 2010057383 W EP2010057383 W EP 2010057383W WO 2010139614 A1 WO2010139614 A1 WO 2010139614A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal powder
pellets
deformed
powder particles
baffle plate
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.)
Ceased
Application number
PCT/EP2010/057383
Other languages
German (de)
English (en)
French (fr)
Inventor
Arno Friedrichs
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2012513553A priority Critical patent/JP5787883B2/ja
Priority to US13/265,652 priority patent/US9132481B2/en
Priority to EP10722682.1A priority patent/EP2440349B1/de
Priority to ES10722682T priority patent/ES2742260T3/es
Publication of WO2010139614A1 publication Critical patent/WO2010139614A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force

Definitions

  • the invention relates to a method for processing metal powder, which consists of a plurality of Metallpulverkü- gel.
  • the object of the invention is to provide a method for processing metal powder, which consists of a plurality of metal powder globules, can be provided by means of which metal powder with non-spherical metal powder particles can be produced.
  • FIG. 1 is a flowchart for explaining a method for processing metal powder according to a first embodiment of the invention
  • Figure 2 is a flowchart for explaining a method for processing metal powder according to a second embodiment of the invention.
  • the inventive method is provided as a starting material metal powder, which consists of a plurality of metal powder beads whose diameter is in the range of 100 microns to 500 microns.
  • metal powder can be produced, for example, by means of the above-mentioned method.
  • a first step S1 the metal powder pellets are heated to a temperature at which the metal powder pellets are in the doughy state.
  • This heating of the metal powder pellets can be carried out using an induction process, by application of radiant heat or in a hot inert gas stream.
  • a collision of the metal powder pellets in the doughy state is brought about with a baffle body in order to obtain deformed metal powder particles.
  • This baffle may be a baffle that is at right angles or at some other angle to the metal powder bead stream.
  • This baffle plate may be formed propeller-shaped. Furthermore, can they are designed to be movable, for example, rotate or swiveled constantly.
  • the metal powder particles deformed by collision with the baffle plate become as follows
  • Step S3 collected in a collection vessel An advantageous embodiment is to transport the deformed metal powder particles by means of a conveyor belt in the collecting vessel, wherein the conveyor belt is disposed either between the baffle plate and the collecting vessel or wherein the conveyor belt itself serves as a baffle plate.
  • An alternative embodiment consists of colliding the metal powder pellets in the doughy state against one another in order to obtain deformed metal powder particles with a non-spherical surface.
  • step S4 After collecting the deformed metal powder particles in the collecting vessel, cooling of the deformed metal powder particles takes place in a step S4 until they are again in a solid state.
  • the metal powder particles provided by step S2 in the collecting vessel in which they are collected in accordance with step S3 may be subjected to another processing.
  • the resulting metal powder particles have, in contrast to the starting material projections, edges and corners.
  • metal powder which consists of a large number of such deformed metal powder particles
  • a drilling tool made, for example, of steel with internal, helically extending cooling channels
  • the steel powder is kneaded with a binder which binds with the binder kneaded steel powder is passed through a pressing tool to produce a strand with internal, rectilinear cooling channels
  • the Pressing strand leaving each strand is cut to a desired length
  • the resulting blank is supported under support over its entire length of a rolling motion whose velocity varies linearly and steadily over the length of the body, so that the blank is twisted, and wherein the twisted
  • the blank is sintered and then provided on its outer shell with spiral flutes.
  • Starting material used the same metal powder as in the method explained with reference to FIG 1, is carried out in a first step Sl, a heating of the metal powder spheres to a temperature at which the metal powder pellets are in the doughy state.
  • a subsequent step Sl / 2 the metal powder pellets in the doughy state are subjected to an acceleration.
  • This acceleration can be carried out by a magnetic field, by means of a spinning process or by means of a protective gas flow.
  • the accelerated metal powder pellets which are in the doughy state, are subjected to a collision with an impact body in a subsequent step S2 in order to be deformed in the same way as in the method explained with reference to FIG.
  • the metal powder particles deformed by the collision are collected in a collecting vessel according to a subsequent step S3, where they cool according to a step S4, so that the metal powder particles are finally in a solid state.
  • the metal powder consisting of a plurality of metal powder pellets is processed to provide metal powder composed of a plurality of metal powder particles which are not spherical are but have projections, corners and edges.
  • metal powder pellets located in the doughy state are accelerated before their collision process, it can happen that metal powder pellets burst during the collision, so that a plurality of even smaller, deformed metal powder particles are formed from a metal powder pellet. This leads to a further improvement of the above-described and desired entanglement of the metal powder particles in the blank and thus to an even further dimensional stability of the blank.

Landscapes

  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
PCT/EP2010/057383 2009-06-06 2010-05-28 Verfahren zur verarbeitung von metallpulver Ceased WO2010139614A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2012513553A JP5787883B2 (ja) 2009-06-06 2010-05-28 金属粉末を処理する方法
US13/265,652 US9132481B2 (en) 2009-06-06 2010-05-28 Method of processing metal powder
EP10722682.1A EP2440349B1 (de) 2009-06-06 2010-05-28 Verfahren zur verarbeitung von stahlpulver
ES10722682T ES2742260T3 (es) 2009-06-06 2010-05-28 Procedimiento para el procesamiento de polvo de acero

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009024120.5 2009-06-06
DE102009024120A DE102009024120A1 (de) 2009-06-06 2009-06-06 Verfahren zur Verarbeitung von Metallpulver

Publications (1)

Publication Number Publication Date
WO2010139614A1 true WO2010139614A1 (de) 2010-12-09

Family

ID=42670556

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/057383 Ceased WO2010139614A1 (de) 2009-06-06 2010-05-28 Verfahren zur verarbeitung von metallpulver

Country Status (6)

Country Link
US (1) US9132481B2 (enExample)
EP (1) EP2440349B1 (enExample)
JP (1) JP5787883B2 (enExample)
DE (1) DE102009024120A1 (enExample)
ES (1) ES2742260T3 (enExample)
WO (1) WO2010139614A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130089749A1 (en) * 2011-10-08 2013-04-11 The Boeing Company System and method for reducing the bulk density of metal powder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024119A1 (de) * 2009-06-06 2010-12-09 Arno Friedrichs Verfahren zur Verarbeitung von Metallpulver
JP6036597B2 (ja) * 2013-08-02 2016-11-30 トヨタ自動車株式会社 磁石用粉体の製造装置と製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000056486A1 (en) * 1999-03-19 2000-09-28 Cabot Corporation Making niobium and other metal powders by milling
JP2004043883A (ja) 2002-07-11 2004-02-12 Murata Mfg Co Ltd 金属粉末の熱処理方法
JP2006351688A (ja) * 2005-06-14 2006-12-28 Sumitomo Metal Mining Co Ltd サマリウム−鉄−窒素系磁石微粉末の製造方法
EP1839783A1 (en) * 2004-12-22 2007-10-03 Taiyo Nippon Sanso Corporation Method for producing superfine metal powder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181123A (en) * 1937-02-11 1939-11-28 Glidden Co Treatment of metallic powders
JPS61166905A (ja) * 1985-01-16 1986-07-28 Sumitomo Special Metals Co Ltd 永久磁石用原料粉末の製造方法
JPH01321096A (ja) * 1988-06-24 1989-12-27 Senju Metal Ind Co Ltd 球形粉末はんだの変形方法
DE69000179T2 (de) * 1989-04-10 1993-01-07 Gte Prod Corp Verfahren zur herstellung von feinteilchen-pulvern durch zerstaeuben mit einer heissen scheibe.
US5039476A (en) * 1989-07-28 1991-08-13 Ube Industries, Ltd. Method for production of powder metallurgy alloy
JP2751080B2 (ja) * 1989-07-28 1998-05-18 宇部興産株式会社 金属粉末成形材の製造方法
JP2007324270A (ja) * 2006-05-31 2007-12-13 Toyota Motor Corp 磁性粉末の製造方法および圧粉コアの製造方法
US7691177B2 (en) * 2006-10-30 2010-04-06 Niotan, Inc. Method and an apparatus of plasma processing of tantalum particles
DE102009024119A1 (de) * 2009-06-06 2010-12-09 Arno Friedrichs Verfahren zur Verarbeitung von Metallpulver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000056486A1 (en) * 1999-03-19 2000-09-28 Cabot Corporation Making niobium and other metal powders by milling
JP2004043883A (ja) 2002-07-11 2004-02-12 Murata Mfg Co Ltd 金属粉末の熱処理方法
EP1839783A1 (en) * 2004-12-22 2007-10-03 Taiyo Nippon Sanso Corporation Method for producing superfine metal powder
JP2006351688A (ja) * 2005-06-14 2006-12-28 Sumitomo Metal Mining Co Ltd サマリウム−鉄−窒素系磁石微粉末の製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130089749A1 (en) * 2011-10-08 2013-04-11 The Boeing Company System and method for reducing the bulk density of metal powder
US9555473B2 (en) * 2011-10-08 2017-01-31 The Boeing Company System and method for increasing the bulk density of metal powder

Also Published As

Publication number Publication date
US9132481B2 (en) 2015-09-15
EP2440349A1 (de) 2012-04-18
JP2012529560A (ja) 2012-11-22
US20120060576A1 (en) 2012-03-15
DE102009024120A1 (de) 2010-12-09
JP5787883B2 (ja) 2015-09-30
ES2742260T3 (es) 2020-02-13
EP2440349B1 (de) 2019-07-03

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