EP0340152A1 - Installation d'atomisation d'un jet de métal liquide - Google Patents

Installation d'atomisation d'un jet de métal liquide Download PDF

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Publication number
EP0340152A1
EP0340152A1 EP89730045A EP89730045A EP0340152A1 EP 0340152 A1 EP0340152 A1 EP 0340152A1 EP 89730045 A EP89730045 A EP 89730045A EP 89730045 A EP89730045 A EP 89730045A EP 0340152 A1 EP0340152 A1 EP 0340152A1
Authority
EP
European Patent Office
Prior art keywords
nozzles
inclination
groups
same
angle
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.)
Withdrawn
Application number
EP89730045A
Other languages
German (de)
English (en)
Inventor
Manfred Aey
Klaus Dr. Wünnenberg
Reinhard Dr. Flender
Klaus Schwarz
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0340152A1 publication Critical patent/EP0340152A1/fr
Withdrawn legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/123—Spraying molten metal
    • 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

Definitions

  • the invention relates to a device for the atomization of a pouring stream of liquid metal by means of a fluid emerging under pressure from several nozzles, the nozzles being arranged in the lower half of a line surrounding the pouring stream and the fluid streams emerging from the nozzles cutting the pouring stream and the atomized metal forms a body on a moving surface.
  • the principle of such devices or methods is known e.g. made of steel and Eisen, 107 (1987), pp. 333 to 336 or DE-PS 22 52 139. According to these known methods, liquid metal flows from a pan with a controllable discharge cross-section into a distributor, the fill level of which is kept constant in order to maintain a constant throughput.
  • the distributor has an outflow opening with a preselected cross section, which projects into an atomizing device.
  • the atomizing device usually consists of a standing line in which numerous bores or nozzles are mounted at an equal angle of inclination so that the metal jet flowing centrally through the ring line is hit by inert atomizing gas below the ring line.
  • a symmetrical spray cone is formed, which consists of the gas flow and small metal particles.
  • the particles accelerated by the gas flow hit a base with a high momentum in a partially solidified state and form a shaped body there.
  • the support is moved away under the spray jet.
  • the width of the molded body produced can be varied by swinging the gas nozzle device about an axis lying parallel to the feed direction of the support or by the width of the spray jet with the gas nozzle stationary (see, for example, EPO 225 080 Al).
  • the object of the invention is to influence the quantity distribution of the particles in the spray jet over the cross section in such a way that the profile of the spray jet leads to a more uniform thickness of the body produced over its width and losses of the spray material in the edge area are reduced.
  • metal melt 2 is contained in a storage vessel 1, which is supplied to an atomizing device 5 through a spout 3 and a subsequent guide nozzle 4.
  • the atomizing device 5 is connected to supply pipes 6, with which a fluid, in particular gas, is supplied.
  • the pouring jet 7 emerging from the guide nozzle 4 is atomized by the fluid emerging from nozzles of an annular line 8.
  • a spray jet 9 is formed in the process.
  • the spray material 10 thus produced is collected on a carrier 11 and further processed, e.g. a rolling process.
  • the fluid-carrying line 8 is shown as a ring line.
  • the line 8 surrounds the pouring jet 7, shown as the longitudinal axis V of the annular line 8, concentrically.
  • the line 8 is provided with nozzles or bores 12 which are at equal distances from one another.
  • the nozzles 12 are inclined to the axis V such that the nozzle axes 13, 13 'seen the axis V in the direction of flow of the pouring jet 7, cut below the line 8.
  • nozzles with the same axis inclination are combined in such a way that two opposing groups have the same inclination angles ⁇ 1 and ⁇ 2, and adjacent groups have different inclination angles ( ⁇ 1, ⁇ 2) exhibit.
  • the groups 14, 15 have the same angle of inclination ⁇ 2
  • the groups 16, 17 have the different angle of inclination ⁇ 1.
  • 3 shows the groups 14, 16, each with a different angle of inclination ⁇ 1, ⁇ 2.
  • the same pressure of the fluid is applied to all nozzle groups. This initially shows that the nozzles 7 of groups 14, 15 are used for the usual atomization of the pouring jet at intersection 18, with an essentially conical configuration of the spray jet, that is to say with a practically circular base area.
  • the spray cone formed in this way is detected by the fluid jets of the nozzles 12 of the groups 16, 17 with a lower-lying intersection 19 of the nozzle axes 13 with the pouring jet axis V and converted into a spray cone with an approximately oval or elliptical base area.
  • the groups are arranged in such a way that the nozzles producing the first intersection 18 are cut from the withdrawal direction 20 of the carrier 11 or spray material 10 in plan view, the nozzle groups 16, 17 with the lower intersection point 19 accordingly lying next to the withdrawal direction 20.
  • FIGS. 4 and 5 show further variants of the atomizing device according to the invention.
  • the nozzles 12 are combined here into concentric groups 21, 22.
  • the inner concentric group 21 has nozzles 7 with the same angle of inclination ⁇ i, while the outer Concentric group 22 according to a first variant likewise has inclination angles ⁇ 1 that are identical to one another but different from the inclination angle ⁇ i, or according to a second variant have nozzles with different sectors, as shown in FIGS. 2 and 3.
  • the spray cone is formed by applying different pressures to the individual sectors of the outer group. This results in a higher density of the sprayed material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nozzles (AREA)
  • Powder Metallurgy (AREA)
  • Continuous Casting (AREA)
EP89730045A 1988-03-29 1989-02-27 Installation d'atomisation d'un jet de métal liquide Withdrawn EP0340152A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3811077 1988-03-29
DE3811077A DE3811077A1 (de) 1988-03-29 1988-03-29 Einrichtung fuer die zerstaeubung eines giessstrahles fluessigen metalls

Publications (1)

Publication Number Publication Date
EP0340152A1 true EP0340152A1 (fr) 1989-11-02

Family

ID=6351220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730045A Withdrawn EP0340152A1 (fr) 1988-03-29 1989-02-27 Installation d'atomisation d'un jet de métal liquide

Country Status (3)

Country Link
EP (1) EP0340152A1 (fr)
JP (1) JPH01278951A (fr)
DE (1) DE3811077A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520442A3 (en) * 1991-06-27 1993-08-04 Centro Sviluppo Materiali S.P.A. Device for atomizing liquid metals for powder production
EP0659898A1 (fr) * 1993-12-17 1995-06-28 General Electric Company Busette pour la pulvérisation de métal liquide
EP0852976A1 (fr) * 1996-12-10 1998-07-15 Howmet Research Corporation Méthode et dispositif de moulage par pulvération
RU2229363C2 (ru) * 2002-05-31 2004-05-27 Открытое акционерное общество "Северсталь" Способ получения металлического порошка распылением
AT7111U3 (de) * 2004-06-17 2005-03-25 Imr Metalle Und Technologie Gm Verfahren zum herstellen von erzeugnissen aus metall

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8824823D0 (en) * 1988-10-22 1988-11-30 Osprey Metals Ltd Atomisation of metals
DE4340102C2 (de) * 1993-11-22 1996-12-12 Mannesmann Ag Einrichtung zum Zerstäuben von Metallschmelzen, insbesondere zur Herstellung von Metallpulver oder Metallgegenständen
CN103008658B (zh) * 2011-09-28 2015-03-04 宝山钢铁股份有限公司 大尺寸单晶组织高温合金坯体材料的制造方法
CN105478770A (zh) * 2015-12-03 2016-04-13 中国航空工业集团公司北京航空材料研究院 一种高碳耐磨工模具钢的双扫描喷射成形制备方法
JP6982015B2 (ja) * 2019-02-04 2021-12-17 三菱パワー株式会社 金属粉末製造装置及びそのガス噴射器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2046873A1 (fr) * 1969-06-18 1971-03-12 Republic Steel Corp
US3909921A (en) * 1971-10-26 1975-10-07 Osprey Metals Ltd Method and apparatus for making shaped articles from sprayed molten metal or metal alloy
FR2294786A1 (fr) * 1974-12-18 1976-07-16 Int Nickel Ltd Procede et installation pour l'atomisation des metaux
FR2329387A1 (fr) * 1975-10-28 1977-05-27 Inco Europ Ltd Procede et dispositif de moulage par pulverisation
DE2818720B1 (de) * 1978-04-28 1979-01-11 Elektrometallurgie Gmbh Verfahren und Vorrichtung zur Herstellung von Metallpulver
EP0198607A1 (fr) * 1985-03-25 1986-10-22 Alcan International Limited Fabrication d'une matrice métallique composite
EP0225732A1 (fr) * 1985-11-12 1987-06-16 Osprey Metals Limited Production de dépôts projetés de métaux liquides

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE334214B (fr) * 1964-07-09 1971-04-19 Elektriska Svetsnings Ab
GB1272229A (en) * 1968-11-27 1972-04-26 British Iron Steel Research Improvements in and relating to the treatment of molten material
BE755514A (fr) * 1969-09-04 1971-03-01 Metal Innovations Inc Procede et appareil pour produire des poudres metalliques de grande purete
GB1359486A (en) * 1970-06-20 1974-07-10 Vandervell Products Ltd Methods and apparatus for producing composite metal material
BE790453A (fr) * 1971-10-26 1973-02-15 Brooks Reginald G Fabrication d'articles en metal
US4628643A (en) * 1985-11-27 1986-12-16 Ex-Cell-O Corporation Grinding wheel infeed control method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2046873A1 (fr) * 1969-06-18 1971-03-12 Republic Steel Corp
US3909921A (en) * 1971-10-26 1975-10-07 Osprey Metals Ltd Method and apparatus for making shaped articles from sprayed molten metal or metal alloy
FR2294786A1 (fr) * 1974-12-18 1976-07-16 Int Nickel Ltd Procede et installation pour l'atomisation des metaux
FR2329387A1 (fr) * 1975-10-28 1977-05-27 Inco Europ Ltd Procede et dispositif de moulage par pulverisation
DE2818720B1 (de) * 1978-04-28 1979-01-11 Elektrometallurgie Gmbh Verfahren und Vorrichtung zur Herstellung von Metallpulver
EP0198607A1 (fr) * 1985-03-25 1986-10-22 Alcan International Limited Fabrication d'une matrice métallique composite
EP0225732A1 (fr) * 1985-11-12 1987-06-16 Osprey Metals Limited Production de dépôts projetés de métaux liquides

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 267 (M-516)[2323], 11. September 1986; & JP-A-61 91 303 (MITSUBISHI STEEL MFG CO., LTD) 09-05-1986 *
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 310 (M-630)[2757], 9. Oktober 1987; & JP-A-62 96 606 (KOBE STEEL LTD) 06-05-1987 *
SOVIET INVENTIONS ILLUSTRATED, Woche 8539, 8. November 1985, Nr. M22P53, Nr. 85-241684/39, Derwent Publications Ltd, London, GB; & SU-A-1144 768 (KRASD POLY) 15-03-1985 *
STAHL & EISEN, Band 107, Nr. 7, 6. April 1987, Seiten 333-336, Düsseldorf, DE; W. REICHELT et al.: "Sprühkompaktieren - ein neues Verfahren zur endabmessungs nahen Herstellung von Vormaterial" *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520442A3 (en) * 1991-06-27 1993-08-04 Centro Sviluppo Materiali S.P.A. Device for atomizing liquid metals for powder production
EP0659898A1 (fr) * 1993-12-17 1995-06-28 General Electric Company Busette pour la pulvérisation de métal liquide
EP0852976A1 (fr) * 1996-12-10 1998-07-15 Howmet Research Corporation Méthode et dispositif de moulage par pulvération
RU2229363C2 (ru) * 2002-05-31 2004-05-27 Открытое акционерное общество "Северсталь" Способ получения металлического порошка распылением
AT7111U3 (de) * 2004-06-17 2005-03-25 Imr Metalle Und Technologie Gm Verfahren zum herstellen von erzeugnissen aus metall

Also Published As

Publication number Publication date
DE3811077A1 (de) 1989-10-19
JPH01278951A (ja) 1989-11-09

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