SE9601481L - Drying of atomized metal powder - Google Patents
Drying of atomized metal powderInfo
- Publication number
- SE9601481L SE9601481L SE9601481A SE9601481A SE9601481L SE 9601481 L SE9601481 L SE 9601481L SE 9601481 A SE9601481 A SE 9601481A SE 9601481 A SE9601481 A SE 9601481A SE 9601481 L SE9601481 L SE 9601481L
- Authority
- SE
- Sweden
- Prior art keywords
- powder
- gas
- liquid
- metal powder
- oxygen
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Metal powder, particularly iron/steel powder with low oxygen content, is atomized in an oxygen-free atmosphere by means of a hydrocarbon in liquid form such as paraffin, and the moist powder, still hot (60-80 DEG C), is transferred to a container (1) and supported therein on a screening member (2). A negative pressure is first applied below the screening member (2) so that liquid is drawn from the powder mass. An inert gas, substantially free from oxygen, is then circulated through the powder mass, whereupon vapour absorbed by the gas is condensed before the gas is recirculated to the container (1). A circulation circuit (70) for liquid atomizing medium joins the gas-circulation circuit (20) at a liquid jet pump (30).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9601481A SE509031C2 (en) | 1996-04-18 | 1996-04-18 | Drying of atomized metal powder |
DE69705715T DE69705715T2 (en) | 1996-04-18 | 1997-04-18 | DRYING OF ATOMIZED METAL POWDERS |
PCT/SE1997/000655 WO1997038812A1 (en) | 1996-04-18 | 1997-04-18 | Drying of atomized metal powder |
CA002251752A CA2251752C (en) | 1996-04-18 | 1997-04-18 | Drying of atomized metal powder |
AU27186/97A AU2718697A (en) | 1996-04-18 | 1997-04-18 | Drying of atomized metal powder |
EP97921034A EP0904171B1 (en) | 1996-04-18 | 1997-04-18 | Drying of atomized metal powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9601481A SE509031C2 (en) | 1996-04-18 | 1996-04-18 | Drying of atomized metal powder |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9601481D0 SE9601481D0 (en) | 1996-04-18 |
SE9601481L true SE9601481L (en) | 1997-10-19 |
SE509031C2 SE509031C2 (en) | 1998-11-30 |
Family
ID=20402253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9601481A SE509031C2 (en) | 1996-04-18 | 1996-04-18 | Drying of atomized metal powder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0904171B1 (en) |
AU (1) | AU2718697A (en) |
CA (1) | CA2251752C (en) |
DE (1) | DE69705715T2 (en) |
SE (1) | SE509031C2 (en) |
WO (1) | WO1997038812A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2348826B (en) * | 1999-04-17 | 2003-03-26 | Michael Cole | Evaporation of liquids |
US20150260454A1 (en) * | 2014-03-12 | 2015-09-17 | Ut-Battelle Llc | Adsorbed water removal from titanium powders via water activation |
WO2018035599A1 (en) | 2016-08-24 | 2018-03-01 | 5N Plus Inc. | Low melting point metal or alloy powders atomization manufacturing processes |
EP3752304B1 (en) | 2018-02-15 | 2023-10-18 | 5n Plus Inc. | High melting point metal or alloy powders atomization manufacturing processes |
CN111300655A (en) * | 2020-02-24 | 2020-06-19 | 中国水利水电第五工程局有限公司 | Method for accelerating dehydration of sand material in double-pressure circulating sand silo |
CN113913797A (en) * | 2021-09-17 | 2022-01-11 | 金华职业技术学院 | Method for drying and protecting chemical plating powder |
CN115739620A (en) * | 2022-10-24 | 2023-03-07 | 中国航发北京航空材料研究院 | Powder vacuum screening device matched with vacuum sheath and method thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA785312B (en) * | 1977-09-22 | 1979-08-29 | Davy Loewy Ltd | Production of metal powder |
CA2038449C (en) * | 1990-03-20 | 1999-03-16 | Naotsugu Isshiki | Method of and apparatus for producing metal powder |
-
1996
- 1996-04-18 SE SE9601481A patent/SE509031C2/en not_active IP Right Cessation
-
1997
- 1997-04-18 CA CA002251752A patent/CA2251752C/en not_active Expired - Fee Related
- 1997-04-18 DE DE69705715T patent/DE69705715T2/en not_active Expired - Lifetime
- 1997-04-18 EP EP97921034A patent/EP0904171B1/en not_active Expired - Lifetime
- 1997-04-18 WO PCT/SE1997/000655 patent/WO1997038812A1/en active IP Right Grant
- 1997-04-18 AU AU27186/97A patent/AU2718697A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE69705715T2 (en) | 2002-06-13 |
EP0904171A1 (en) | 1999-03-31 |
CA2251752A1 (en) | 1997-10-23 |
CA2251752C (en) | 2005-08-02 |
WO1997038812A1 (en) | 1997-10-23 |
SE509031C2 (en) | 1998-11-30 |
AU2718697A (en) | 1997-11-07 |
SE9601481D0 (en) | 1996-04-18 |
DE69705715D1 (en) | 2001-08-23 |
EP0904171B1 (en) | 2001-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |