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SE8006244L - PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY - Google Patents

PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY

Info

Publication number
SE8006244L
SE8006244L SE8006244A SE8006244A SE8006244L SE 8006244 L SE8006244 L SE 8006244L SE 8006244 A SE8006244 A SE 8006244A SE 8006244 A SE8006244 A SE 8006244A SE 8006244 L SE8006244 L SE 8006244L
Authority
SE
Sweden
Prior art keywords
casting stream
cover
opening
molten metal
degassing
Prior art date
Application number
SE8006244A
Other languages
Swedish (sv)
Inventor
H-G Larsson
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE8006244A priority Critical patent/SE8006244L/en
Priority to EP81106623A priority patent/EP0047431A1/en
Priority to AU74904/81A priority patent/AU7490481A/en
Priority to JP56141616A priority patent/JPS5779102A/en
Publication of SE8006244L publication Critical patent/SE8006244L/en

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
    • 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
    • B22F2009/0848—Melting process before atomisation
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The method and apparatus operate by atomising a casting stream (23) formed from the molten metal (5) with the aid of a gas jet, which hits the casting stream (23) at high speed and atomises it into fine droplets (25), which quickly solidify into powder. The molten metal (5) is placed in a ladle (2), which is provided on the bottom with a spigot block (16), in which there is an opening (21a) forming a casting stream. This opening is covered by a cover. The ladle (2) is provided with a cover (6), which is connected to an evacuating device (10), which generates a vacuum required for degassing. The molten metal (5) is stirred during degassing. After degassing, the cover (22) over the opening (21) of the spigot block (16) is removed and the casting stream (23) formed is atomised in a known way in a granulation chamber (1). <IMAGE>
SE8006244A 1980-09-08 1980-09-08 PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY SE8006244L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8006244A SE8006244L (en) 1980-09-08 1980-09-08 PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY
EP81106623A EP0047431A1 (en) 1980-09-08 1981-08-26 Method and apparatus for producing highly pure metal powder
AU74904/81A AU7490481A (en) 1980-09-08 1981-09-03 Metal powder
JP56141616A JPS5779102A (en) 1980-09-08 1981-09-08 Metal powder producing method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8006244A SE8006244L (en) 1980-09-08 1980-09-08 PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY

Publications (1)

Publication Number Publication Date
SE8006244L true SE8006244L (en) 1982-03-09

Family

ID=20341682

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8006244A SE8006244L (en) 1980-09-08 1980-09-08 PROCEDURE FOR MANUFACTURING METAL POWDER WITH GREAT PURITY

Country Status (4)

Country Link
EP (1) EP0047431A1 (en)
JP (1) JPS5779102A (en)
AU (1) AU7490481A (en)
SE (1) SE8006244L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6199560A (en) * 1984-10-18 1986-05-17 Nippon Jiryoku Senko Kk Method for maintaining constant outflow rate of molten metal in ladle
JPH03191004A (en) * 1989-12-21 1991-08-21 Kawasaki Steel Corp Manufacture of atomized iron powder
WO1995013158A1 (en) * 1993-11-10 1995-05-18 Vladimir Georgievich Smelikov Method of manufacturing articles from metals and alloys
DE19738682B4 (en) * 1997-09-04 2006-10-19 Ald Vacuum Technologies Ag melting tank
CN111014703B (en) * 2019-12-26 2022-02-11 中天上材增材制造有限公司 Preparation method of nickel-based alloy powder for laser cladding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558370A1 (en) * 1966-11-28 1970-04-16 Ne Metallkombinat Hettstedt Ve Process for the production of metal powder with particularly low oxide, nitride and hydride contents and a device for carrying out the process
DE1960283A1 (en) * 1968-12-18 1970-07-09 Pennwalt Corp Vacuum degassing apparatus for use in continuous casting of metals and methods of continuously casting molten metal while it is being vacuum degassed
SE352260B (en) * 1971-05-12 1972-12-27 Asea Ab
US4078873A (en) * 1976-01-30 1978-03-14 United Technologies Corporation Apparatus for producing metal powder
FR2427866A1 (en) * 1978-06-05 1980-01-04 Eurdic Nozzle plug for metallurgical vessels - prevents molten metal from entering nozzle hole until vessel is to be emptied

Also Published As

Publication number Publication date
EP0047431A1 (en) 1982-03-17
AU7490481A (en) 1982-03-18
JPS5779102A (en) 1982-05-18

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