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EP1022078A3 - Process and apparatus for preparing metal powder by gas atomisation - Google Patents

Process and apparatus for preparing metal powder by gas atomisation Download PDF

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Publication number
EP1022078A3
EP1022078A3 EP00890013A EP00890013A EP1022078A3 EP 1022078 A3 EP1022078 A3 EP 1022078A3 EP 00890013 A EP00890013 A EP 00890013A EP 00890013 A EP00890013 A EP 00890013A EP 1022078 A3 EP1022078 A3 EP 1022078A3
Authority
EP
European Patent Office
Prior art keywords
metal powder
melt stream
preparing metal
case
melt
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
Application number
EP00890013A
Other languages
German (de)
French (fr)
Other versions
EP1022078A2 (en
EP1022078B1 (en
Inventor
Claes Tornberg
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.)
Voestalpine Boehler Edelstahl GmbH
Original Assignee
Boehler Edelstahl GmbH
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 Boehler Edelstahl GmbH filed Critical Boehler Edelstahl GmbH
Publication of EP1022078A2 publication Critical patent/EP1022078A2/en
Publication of EP1022078A3 publication Critical patent/EP1022078A3/en
Application granted granted Critical
Publication of EP1022078B1 publication Critical patent/EP1022078B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22F9/06—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
    • B22F9/082—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 atomising using a fluid
    • 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
    • B22F9/082—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 atomising using a fluid
    • B22F2009/088—Fluid nozzles, e.g. angle, distance

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Metallpulver aus dergleichen Schmelzen.The invention relates to a method and an apparatus for producing Metal powder from the same melts.

Um einen hohen Anteil an Pulverteilchen mit geringem Komdurchmesser und eine hohe Schüttdichte des Metallpulvers zu erstellen, ist erfindungsgemäß vorgesehen, daß der aus dem Schmelzendüsenkörper (D) im wesentlichen vertikal austretende Schmelzenstrom (S) durch mindestens drei Gasstrahlen (1,2,3) mit jeweils verschiedenen Richtungen beaufschlagt wird, wobei die Gasstrahlen in der Wirkfolge jeweils auf den eingebrachten Schmelzenstrom S auf den durch den jeweils vorgeordneten Gasstrahl in der Richtung eingestellten und geformten Schmelzenstrom (FS) mit einem Winkel zwischen 5° und 170° ausgerichtet sind.

Figure 00000001
In order to create a high proportion of powder particles with a small grain diameter and a high bulk density of the metal powder, the invention provides that the melt stream (S) emerging essentially vertically from the melt nozzle body (D) by at least three gas jets (1,2,3) In each case, different directions are applied, the gas jets being aligned in the sequence of action in each case to the melt stream S introduced to the melt stream (FS) set and shaped by the respective upstream gas jet at an angle between 5 ° and 170 °.
Figure 00000001
EP20000890013 1999-01-19 2000-01-18 Process and apparatus for preparing metal powder by gas atomisation Expired - Lifetime EP1022078B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT7099 1999-01-19
AT0007099A AT409235B (en) 1999-01-19 1999-01-19 METHOD AND DEVICE FOR PRODUCING METAL POWDER

Publications (3)

Publication Number Publication Date
EP1022078A2 EP1022078A2 (en) 2000-07-26
EP1022078A3 true EP1022078A3 (en) 2003-05-07
EP1022078B1 EP1022078B1 (en) 2004-10-27

Family

ID=3480743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000890013 Expired - Lifetime EP1022078B1 (en) 1999-01-19 2000-01-18 Process and apparatus for preparing metal powder by gas atomisation

Country Status (9)

Country Link
US (3) US6334884B1 (en)
EP (1) EP1022078B1 (en)
JP (1) JP4171955B2 (en)
AT (2) AT409235B (en)
DE (1) DE50008367D1 (en)
DK (1) DK1022078T3 (en)
ES (1) ES2231150T3 (en)
SI (1) SI1022078T1 (en)
UA (1) UA61959C2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409235B (en) * 1999-01-19 2002-06-25 Boehler Edelstahl METHOD AND DEVICE FOR PRODUCING METAL POWDER
AT408990B (en) * 2000-08-16 2002-04-25 Holderbank Financ Glarus DEVICE FOR SPRAYING LIQUID MEDIA, IN PARTICULAR LIQUID MELT
AT411580B (en) * 2001-04-11 2004-03-25 Boehler Edelstahl METHOD FOR THE POWDER METALLURGICAL PRODUCTION OF OBJECTS
DE50201970D1 (en) * 2001-10-10 2005-02-10 Claes Tornberg METHOD FOR PRODUCING METAL POWDER FROM SPRING PARTICLES
AT411230B (en) * 2001-10-10 2003-11-25 Claes Dipl Ing Tornberg Producing surface-fissured, irregular metal powder comprises diverting stream of molten metal three times using stream of gas or liquid, breaking it into droplets and then solidifying them
AT412328B (en) * 2002-04-03 2005-01-25 Claes Dipl Ing Tornberg Producing surface-fissured, irregular metal powder comprises diverting stream of molten metal three times using stream of gas or liquid, breaking it into droplets and then solidifying them
DE10205897A1 (en) * 2002-02-13 2003-08-21 Mepura Metallpulver Process for the production of particulate material
US7744808B2 (en) * 2007-12-10 2010-06-29 Ajax Tocco Magnethermic Corporation System and method for producing shot from molten material
CH705750A1 (en) 2011-10-31 2013-05-15 Alstom Technology Ltd A process for the production of components or portions, which consist of a high-temperature superalloy.
EP2700459B1 (en) 2012-08-21 2019-10-02 Ansaldo Energia IP UK Limited Method for manufacturing a three-dimensional article
EP2737965A1 (en) * 2012-12-01 2014-06-04 Alstom Technology Ltd Method for manufacturing a metallic component by additive laser manufacturing
US9981315B2 (en) * 2013-09-24 2018-05-29 Iowa State University Research Foundation, Inc. Atomizer for improved ultra-fine powder production
KR101536454B1 (en) * 2013-12-20 2015-07-13 주식회사 포스코 Powder producing device and powder producing method
CA2992303C (en) * 2015-07-17 2018-08-21 Ap&C Advanced Powders And Coatings Inc. Plasma atomization metal powder manufacturing processes and systems therefor
CA3003502C (en) * 2015-10-29 2019-01-08 Ap&C Advanced Powders And Coatings Inc. Metal powder atomization manufacturing processes
AU2017249439B2 (en) 2016-04-11 2022-10-20 Ap&C Advanced Powders & Coatings Inc. Reactive metal powders in-flight heat treatment processes
KR102421026B1 (en) * 2016-08-24 2022-07-14 5엔 플러스 아이엔씨. Low melting point metal or alloy powders atomization manufacturing processes
US11185919B2 (en) 2018-01-12 2021-11-30 Hammond Group, Inc. Methods and systems for forming mixtures of lead oxide and lead metal particles
CA3090714C (en) * 2018-02-15 2021-07-20 5N Plus Inc. High melting point metal or alloy powders atomization manufacturing processes
WO2019195559A1 (en) 2018-04-04 2019-10-10 Metal Powder Works, LLC System and method for powder manufacturing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1227274A (en) * 1958-01-17 1960-08-19 Kohlswa Jernverks Ab Improvements to processes and devices for pulverizing or decomposing solid materials
EP0192383A2 (en) * 1985-02-18 1986-08-27 National Research Development Corporation Method of distributing liquid onto a substrate
US4779802A (en) * 1985-11-12 1988-10-25 Osprey Metals Limited Atomization of metals

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US2968062A (en) 1959-03-23 1961-01-17 Federal Mogul Bower Bearings Atomizing nozzle and pouring cup assembly for the manufacture of metal powders
NL270569A (en) * 1960-10-24
GB1272229A (en) * 1968-11-27 1972-04-26 British Iron Steel Research Improvements in and relating to the treatment of molten material
US3752611A (en) * 1969-06-18 1973-08-14 Republic Steel Corp Apparatus for producing metal powder
SE421758B (en) 1970-11-11 1982-02-01 Uddeholms Ab DEVICE according to Swedish Patent 6916675-9 FOR GRANULATION OF MELTED METAL
US4272463A (en) 1974-12-18 1981-06-09 The International Nickel Co., Inc. Process for producing metal powder
JPS5172906A (en) * 1974-12-23 1976-06-24 Hitachi Metals Ltd Tankabutsuo fukashitakosokudokoguko
US4382903A (en) 1978-07-21 1983-05-10 Asea Aktiebolag Method for manufacturing a metal powder by granulation of a metal melt
DE3369793D1 (en) * 1983-07-12 1987-03-19 Recuperation Metallurg C I R M Process for obtaining granules from steelwork slag
US4905899A (en) 1985-11-12 1990-03-06 Osprey Metals Limited Atomisation of metals
SE461848B (en) 1987-12-09 1990-04-02 Hg Tech Ab PROCEDURE FOR ATOMIZATION OF SCIENCES AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
AT395230B (en) * 1989-11-16 1992-10-27 Boehler Gmbh METHOD FOR PRODUCING PRE-MATERIAL FOR WORKPIECES WITH A HIGH PROPORTION OF METAL CONNECTIONS
US5238482A (en) * 1991-05-22 1993-08-24 Crucible Materials Corporation Prealloyed high-vanadium, cold work tool steel particles and methods for producing the same
US5993509A (en) * 1996-11-19 1999-11-30 Nat Science Council Atomizing apparatus and process
US6142382A (en) * 1997-06-18 2000-11-07 Iowa State University Research Foundation, Inc. Atomizing nozzle and method
AT409235B (en) * 1999-01-19 2002-06-25 Boehler Edelstahl METHOD AND DEVICE FOR PRODUCING METAL POWDER
AT411580B (en) * 2001-04-11 2004-03-25 Boehler Edelstahl METHOD FOR THE POWDER METALLURGICAL PRODUCTION OF OBJECTS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1227274A (en) * 1958-01-17 1960-08-19 Kohlswa Jernverks Ab Improvements to processes and devices for pulverizing or decomposing solid materials
EP0192383A2 (en) * 1985-02-18 1986-08-27 National Research Development Corporation Method of distributing liquid onto a substrate
US4779802A (en) * 1985-11-12 1988-10-25 Osprey Metals Limited Atomization of metals

Also Published As

Publication number Publication date
SI1022078T1 (en) 2005-06-30
JP4171955B2 (en) 2008-10-29
US20040031354A1 (en) 2004-02-19
DE50008367D1 (en) 2004-12-02
AT409235B (en) 2002-06-25
US6334884B1 (en) 2002-01-01
US7198657B2 (en) 2007-04-03
ATE280649T1 (en) 2004-11-15
ES2231150T3 (en) 2005-05-16
ATA7099A (en) 2001-11-15
UA61959C2 (en) 2003-12-15
US20010054784A1 (en) 2001-12-27
EP1022078A2 (en) 2000-07-26
EP1022078B1 (en) 2004-10-27
US6632394B2 (en) 2003-10-14
JP2000212608A (en) 2000-08-02
DK1022078T3 (en) 2005-03-14

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