EP2440349A1 - Verfahren zur verarbeitung von metallpulver - Google Patents
Verfahren zur verarbeitung von metallpulverInfo
- Publication number
- EP2440349A1 EP2440349A1 EP10722682A EP10722682A EP2440349A1 EP 2440349 A1 EP2440349 A1 EP 2440349A1 EP 10722682 A EP10722682 A EP 10722682A EP 10722682 A EP10722682 A EP 10722682A EP 2440349 A1 EP2440349 A1 EP 2440349A1
- Authority
- EP
- European Patent Office
- 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.)
- Granted
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009024120A DE102009024120A1 (de) | 2009-06-06 | 2009-06-06 | Verfahren zur Verarbeitung von Metallpulver |
| PCT/EP2010/057383 WO2010139614A1 (de) | 2009-06-06 | 2010-05-28 | Verfahren zur verarbeitung von metallpulver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2440349A1 true EP2440349A1 (de) | 2012-04-18 |
| EP2440349B1 EP2440349B1 (de) | 2019-07-03 |
Family
ID=42670556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10722682.1A Active EP2440349B1 (de) | 2009-06-06 | 2010-05-28 | Verfahren zur verarbeitung von stahlpulver |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9132481B2 (de) |
| EP (1) | EP2440349B1 (de) |
| JP (1) | JP5787883B2 (de) |
| DE (1) | DE102009024120A1 (de) |
| ES (1) | ES2742260T3 (de) |
| WO (1) | WO2010139614A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009024119A1 (de) * | 2009-06-06 | 2010-12-09 | Arno Friedrichs | Verfahren zur Verarbeitung von Metallpulver |
| US9555473B2 (en) * | 2011-10-08 | 2017-01-31 | The Boeing Company | System and method for increasing the bulk density of metal powder |
| 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 |
Family Cites Families (13)
| 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 |
| MXPA01009477A (es) * | 1999-03-19 | 2002-06-04 | Cabot Corp | Elaboracion de polvo de niobio y de otros metales mediante molienda. |
| JP2004043883A (ja) | 2002-07-11 | 2004-02-12 | Murata Mfg Co Ltd | 金属粉末の熱処理方法 |
| TWI381897B (zh) | 2004-12-22 | 2013-01-11 | 大陽日酸股份有限公司 | 金屬超微粉之製造方法 |
| 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 |
| 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 |
-
2009
- 2009-06-06 DE DE102009024120A patent/DE102009024120A1/de not_active Ceased
-
2010
- 2010-05-28 US US13/265,652 patent/US9132481B2/en active Active
- 2010-05-28 WO PCT/EP2010/057383 patent/WO2010139614A1/de not_active Ceased
- 2010-05-28 EP EP10722682.1A patent/EP2440349B1/de active Active
- 2010-05-28 ES ES10722682T patent/ES2742260T3/es active Active
- 2010-05-28 JP JP2012513553A patent/JP5787883B2/ja active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010139614A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2742260T3 (es) | 2020-02-13 |
| JP5787883B2 (ja) | 2015-09-30 |
| US20120060576A1 (en) | 2012-03-15 |
| JP2012529560A (ja) | 2012-11-22 |
| WO2010139614A1 (de) | 2010-12-09 |
| DE102009024120A1 (de) | 2010-12-09 |
| US9132481B2 (en) | 2015-09-15 |
| EP2440349B1 (de) | 2019-07-03 |
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