CA2251752C - Dessiccation de poudre metallique atomisee - Google Patents

Dessiccation de poudre metallique atomisee Download PDF

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Publication number
CA2251752C
CA2251752C CA002251752A CA2251752A CA2251752C CA 2251752 C CA2251752 C CA 2251752C CA 002251752 A CA002251752 A CA 002251752A CA 2251752 A CA2251752 A CA 2251752A CA 2251752 C CA2251752 C CA 2251752C
Authority
CA
Canada
Prior art keywords
liquid
container
powder
pump
protective gas
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.)
Expired - Fee Related
Application number
CA002251752A
Other languages
English (en)
Other versions
CA2251752A1 (fr
Inventor
Rutger Larsson
Erik Axmin
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.)
Rutger Larson Konsult AB
Original Assignee
Rutger Larson Konsult 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 Rutger Larson Konsult AB filed Critical Rutger Larson Konsult AB
Publication of CA2251752A1 publication Critical patent/CA2251752A1/fr
Application granted granted Critical
Publication of CA2251752C publication Critical patent/CA2251752C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Drying Of Solid Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

On atomise de la poudre métallique notamment de fer ou d'acier à faible teneur en oxygène dans une atmosphère exempte d'oxygène au moyen d'un hydrocarbure sous forme liquide tel que de la paraffine, puis la poudre humide, encore chaude (60-80 DEG C) est transférée dans un récipient (1) où elle est déposée sur un filtre (2). Une dépression est tout d'abord appliquée sous le filtre (2) pour extraire le liquide de la masse pulvérulente, puis un gaz inerte, pratiquement exempt d'oxygène, circule à travers la masse pulvérulente, puis la vapeur absorbée par le gaz est condensée avant que le gaz ne soit renvoyé dans le récipient (1). Le circuit (70) de circulation du liquide d'atomisation rejoint le circuit (20) de circulation du gaz au niveau d'une pompe à jet (30).
CA002251752A 1996-04-18 1997-04-18 Dessiccation de poudre metallique atomisee Expired - Fee Related CA2251752C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9601481-6 1996-04-18
SE9601481A SE509031C2 (sv) 1996-04-18 1996-04-18 Torkning av atomiserat metallpulver
PCT/SE1997/000655 WO1997038812A1 (fr) 1996-04-18 1997-04-18 Dessiccation de poudre metallique atomisee

Publications (2)

Publication Number Publication Date
CA2251752A1 CA2251752A1 (fr) 1997-10-23
CA2251752C true CA2251752C (fr) 2005-08-02

Family

ID=20402253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002251752A Expired - Fee Related CA2251752C (fr) 1996-04-18 1997-04-18 Dessiccation de poudre metallique atomisee

Country Status (6)

Country Link
EP (1) EP0904171B1 (fr)
AU (1) AU2718697A (fr)
CA (1) CA2251752C (fr)
DE (1) DE69705715T2 (fr)
SE (1) SE509031C2 (fr)
WO (1) WO1997038812A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE288583T1 (de) * 1999-04-17 2005-02-15 Genevac Ltd Verdampfung von flüssigkeiten und rückzirkulation gereinigten gases
US20150260454A1 (en) * 2014-03-12 2015-09-17 Ut-Battelle Llc Adsorbed water removal from titanium powders via water activation
KR102421026B1 (ko) 2016-08-24 2022-07-14 5엔 플러스 아이엔씨. 저융점 금속 또는 합금 분말 미립화 제조 공정
EP3752304B1 (fr) 2018-02-15 2023-10-18 5n Plus Inc. Procédés de fabrication par atomisation de poudres de métal ou d'alliage à point de fusion élevé
CN111300655A (zh) * 2020-02-24 2020-06-19 中国水利水电第五工程局有限公司 一种双压循环砂仓砂料加速脱水方法
CN113913797A (zh) * 2021-09-17 2022-01-11 金华职业技术学院 一种化学镀粉末烘干保护的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA785312B (en) * 1977-09-22 1979-08-29 Davy Loewy Ltd Production of metal powder
CA2038449C (fr) * 1990-03-20 1999-03-16 Naotsugu Isshiki Methode de production de poudre metallique et appareil connexe

Also Published As

Publication number Publication date
SE509031C2 (sv) 1998-11-30
EP0904171A1 (fr) 1999-03-31
DE69705715D1 (de) 2001-08-23
SE9601481L (sv) 1997-10-19
DE69705715T2 (de) 2002-06-13
AU2718697A (en) 1997-11-07
SE9601481D0 (sv) 1996-04-18
WO1997038812A1 (fr) 1997-10-23
EP0904171B1 (fr) 2001-07-18
CA2251752A1 (fr) 1997-10-23

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Effective date: 20140422