IT1269771B - Metodo ed apparecchiatura per la produzione di granuli metallici - Google Patents
Metodo ed apparecchiatura per la produzione di granuli metalliciInfo
- Publication number
- IT1269771B IT1269771B ITMI940966A ITMI940966A IT1269771B IT 1269771 B IT1269771 B IT 1269771B IT MI940966 A ITMI940966 A IT MI940966A IT MI940966 A ITMI940966 A IT MI940966A IT 1269771 B IT1269771 B IT 1269771B
- Authority
- IT
- Italy
- Prior art keywords
- metal
- droplets
- nozzle
- production
- equipment
- Prior art date
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
- B22F9/10—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
-
- 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
- B22F2009/086—Cooling after atomisation
- B22F2009/0864—Cooling after atomisation by oil, other non-aqueous fluid or fluid-bed cooling
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Granuli di metalli reattivi, in particolare di magnesio e/o di leghe di magnesio, vengono prodotti direttamente dal metallo fuso. Il metallo viene alimentato in pressione ad un ugello di granulazione che costringe il metallo ad acquistare un moto circolare a velocità crescente prima che esso raggiunga l'uscita dall'ugello e si disintegri poi in piccoli frammenti e goccioline. Tali frammenti e goccioline vengono formati in una atmosfera di gas inattivo in un sistema chiuso, ed in seguito si solidificano e si raffreddano in un bagno di raffreddamento non - ossidante. E' pure descritta un'apparecchiatura con una camera di granulazione costituita da due parti (1, 2) che possono essere accoppiate una all'altra in diverse posizioni con un sistema di blocco a tenuta d'aria (3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO931784A NO177987C (no) | 1993-05-14 | 1993-05-14 | Fremgangsmåte og apparat for fremstilling av metallgranuler |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI940966A0 ITMI940966A0 (it) | 1994-05-13 |
ITMI940966A1 ITMI940966A1 (it) | 1995-11-13 |
IT1269771B true IT1269771B (it) | 1997-04-15 |
Family
ID=19896096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI940966A IT1269771B (it) | 1993-05-14 | 1994-05-13 | Metodo ed apparecchiatura per la produzione di granuli metallici |
Country Status (12)
Country | Link |
---|---|
US (1) | US5402992A (it) |
JP (1) | JP2642060B2 (it) |
AU (1) | AU677823B2 (it) |
BR (1) | BR9401955A (it) |
CA (1) | CA2122699A1 (it) |
DE (1) | DE4417100C2 (it) |
FR (1) | FR2705261B1 (it) |
GB (1) | GB2279368B (it) |
IL (1) | IL109642A (it) |
IT (1) | IT1269771B (it) |
NO (1) | NO177987C (it) |
RU (1) | RU94017649A (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9004480D0 (en) * | 1989-03-15 | 1990-04-25 | Asahi Chemical Ind | High luminance thin-fim electroluminescent device |
NO180595C (no) * | 1994-09-16 | 1997-05-14 | Norsk Hydro As | Fremgangsmåte for å kontrollere overflateegenskapene til magnesiumpartikler |
US5549732B1 (en) * | 1994-11-29 | 2000-08-08 | Alcan Intrnat Ltd | Production of granules of reactive metals for example magnesium and magnesium alloy |
JP2000192112A (ja) * | 1998-12-25 | 2000-07-11 | Nippon Steel Corp | 微小金属球の製造方法及び装置 |
WO2005061088A1 (en) * | 2003-12-22 | 2005-07-07 | Finlay Warren H | Powder formation by atmospheric spray-freeze drying |
US8021981B2 (en) * | 2006-08-30 | 2011-09-20 | Micron Technology, Inc. | Redistribution layers for microfeature workpieces, and associated systems and methods |
CN101522044B (zh) * | 2006-10-04 | 2013-07-10 | 味之素株式会社 | 反刍动物用饲料添加组合物及其制造方法 |
JP2011125217A (ja) * | 2008-04-03 | 2011-06-30 | Ajinomoto Co Inc | 酸性、中性アミノ酸含有反芻動物用飼料添加組成物及びその製造方法 |
JP5267553B2 (ja) * | 2008-04-03 | 2013-08-21 | 味の素株式会社 | 反芻動物用飼料添加組成物及びその製造方法 |
EP2181785A1 (de) | 2008-11-04 | 2010-05-05 | Umicore AG & Co. KG | Vorrichtung und Verfahren zur Granulierung einer Metallschmelze |
KR101836661B1 (ko) * | 2016-07-04 | 2018-03-08 | 현대자동차주식회사 | 철계 분말 제조장치 |
EP3988230A1 (de) | 2020-10-23 | 2022-04-27 | Heraeus Deutschland GmbH & Co. KG | Granuliervorrichtung mit kontinuierlicher produktausschleusung |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1224125B (de) * | 1960-12-22 | 1966-09-01 | Siemens Ag | Verfahren und Vorrichtung zum Herstellen von Granulaten aus geschmolzenen Metallen oder Metallegierungen |
GB1250969A (it) * | 1969-12-18 | 1971-10-27 | ||
US3695795A (en) * | 1970-03-20 | 1972-10-03 | Conn Eng Assoc Corp | Production of powdered metal |
SU393317A1 (ru) * | 1971-10-01 | 1973-08-10 | СЕjVl. Кл. С 2ic 7/00УДК 669.046.55(088.8)Авторыизобретени Н. В. Молочников, В. И. Явойский, Д. И. Бородин, В. Т. Тимофеев, Э. В. ЛовчикоЕСкий, А. В. Явойский, А. В. Василивицкий, В. М. Волыр1кик, Е. А. Иванов и П. Н. Крейндлин | |
CA1040375A (en) * | 1974-10-03 | 1978-10-17 | David G. Malcolm | Sulphur pelletization process |
GB1563438A (en) * | 1977-06-29 | 1980-03-26 | Rutger Larson Konsult Ab | Method and apparatus for producing atomized metal powder |
US4124377A (en) * | 1977-07-20 | 1978-11-07 | Rutger Larson Konsult Ab | Method and apparatus for producing atomized metal powder |
FR2398567A1 (fr) * | 1977-07-25 | 1979-02-23 | Rutger Larson Konsult Ab | Procede et appareil pour produire du metal en poudre |
JPS5468764A (en) * | 1977-11-12 | 1979-06-02 | Mizusawa Industrial Chem | Production of particulate article comprising low melting metal |
GB1563468A (en) * | 1978-01-03 | 1980-03-26 | Irathane Systems Inc | Protective unit for allowing vehicles to pass over a cable hose or the like |
US4471831A (en) * | 1980-12-29 | 1984-09-18 | Allied Corporation | Apparatus for rapid solidification casting of high temperature and reactive metallic alloys |
US4416600A (en) * | 1982-02-10 | 1983-11-22 | Griff Williams Co. | Apparatus for producing high purity metal powders |
GB2128107B (en) * | 1982-10-01 | 1985-12-18 | Spraying Systems Co | Whirl spray nozzle |
DE3346386A1 (de) * | 1983-12-22 | 1985-07-04 | Wolfgang 4600 Dortmund Seidler | Verfahren und vorrichtung zur erzeugung von stahl-granulat, insbesondere als strahlmittel |
US4585473A (en) * | 1984-04-09 | 1986-04-29 | Crucible Materials Corporation | Method for making rare-earth element containing permanent magnets |
SU1246487A1 (ru) * | 1984-09-01 | 1991-06-07 | Предприятие П/Я А-7354 | Способ получени металлического порошка |
CA1315055C (en) * | 1986-03-10 | 1993-03-30 | John Joseph Fischer | Atomization process |
FR2600000B1 (fr) * | 1986-06-13 | 1989-04-14 | Extramet Sa | Procede et dispositif de granulation d'un metal fondu |
DE3730147A1 (de) * | 1987-09-09 | 1989-03-23 | Leybold Ag | Verfahren zur herstellung von pulvern aus geschmolzenen stoffen |
GB9002057D0 (en) * | 1990-01-30 | 1990-03-28 | Davy Mckee Sheffield | An apparatus for producing particles of metal |
GB2240533A (en) * | 1990-02-02 | 1991-08-07 | Lin Jen Wei | Bag inflating and sealing apparatus |
JPH0428804A (ja) * | 1990-05-24 | 1992-01-31 | Kawasaki Steel Corp | アトマイズ粉の製造方法及び装置 |
JP2672044B2 (ja) * | 1991-06-05 | 1997-11-05 | 株式会社クボタ | 金属粉末の製造方法 |
-
1993
- 1993-05-14 NO NO931784A patent/NO177987C/no unknown
-
1994
- 1994-01-25 US US08/186,022 patent/US5402992A/en not_active Expired - Fee Related
- 1994-05-02 CA CA002122699A patent/CA2122699A1/en not_active Abandoned
- 1994-05-04 AU AU61869/94A patent/AU677823B2/en not_active Ceased
- 1994-05-10 GB GB9409256A patent/GB2279368B/en not_active Expired - Fee Related
- 1994-05-11 BR BR9401955A patent/BR9401955A/pt not_active Application Discontinuation
- 1994-05-11 FR FR9405819A patent/FR2705261B1/fr not_active Expired - Fee Related
- 1994-05-12 JP JP6098761A patent/JP2642060B2/ja not_active Expired - Lifetime
- 1994-05-12 IL IL10964294A patent/IL109642A/en not_active IP Right Cessation
- 1994-05-13 RU RU94017649/02A patent/RU94017649A/ru unknown
- 1994-05-13 IT ITMI940966A patent/IT1269771B/it active IP Right Grant
- 1994-05-16 DE DE4417100A patent/DE4417100C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IL109642A0 (en) | 1994-08-26 |
RU94017649A (ru) | 1996-04-10 |
IL109642A (en) | 1996-11-14 |
JPH06346117A (ja) | 1994-12-20 |
AU677823B2 (en) | 1997-05-08 |
GB2279368A (en) | 1995-01-04 |
CA2122699A1 (en) | 1994-11-15 |
GB2279368B (en) | 1996-12-11 |
FR2705261A1 (fr) | 1994-11-25 |
NO177987C (no) | 1996-01-03 |
DE4417100C2 (de) | 1997-08-21 |
NO931784L (no) | 1994-11-15 |
US5402992A (en) | 1995-04-04 |
NO931784D0 (no) | 1993-05-14 |
GB9409256D0 (en) | 1994-06-29 |
ITMI940966A0 (it) | 1994-05-13 |
AU6186994A (en) | 1994-11-17 |
DE4417100A1 (de) | 1994-11-17 |
NO177987B (no) | 1995-09-25 |
JP2642060B2 (ja) | 1997-08-20 |
BR9401955A (pt) | 1994-12-13 |
FR2705261B1 (fr) | 1998-04-03 |
ITMI940966A1 (it) | 1995-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970530 |