SE448835B - Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection - Google Patents

Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection

Info

Publication number
SE448835B
SE448835B SE7604316A SE7604316A SE448835B SE 448835 B SE448835 B SE 448835B SE 7604316 A SE7604316 A SE 7604316A SE 7604316 A SE7604316 A SE 7604316A SE 448835 B SE448835 B SE 448835B
Authority
SE
Sweden
Prior art keywords
gas
reducing
medium
granulation chamber
liq
Prior art date
Application number
SE7604316A
Other languages
Swedish (sv)
Other versions
SE7604316L (en
Inventor
Ulf Rutger Larson
Original Assignee
Ulf Rutger Larson
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 Ulf Rutger Larson filed Critical Ulf Rutger Larson
Priority to SE7604316A priority Critical patent/SE448835B/en
Publication of SE7604316L publication Critical patent/SE7604316L/xx
Publication of SE448835B publication Critical patent/SE448835B/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
    • 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

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

The powdering medium, the reducing gas atmosphere and fluid used comprise hydrocarbons, pref. gas-form or liq. hydrocarbon or a mixt. such as gas oil, oil, benzene, or similar. The quantity of reducing powdering medium per time unit is adjusted in relation to the amount of metal per time unit, so that the desired carbon content in the produced metal powder is obtd. A molten stream is thus exposed to the gas-form or liq. hydrocarbon and to protect the powder against oxidation, the pulverisation takes place in a closed granulation chamber partially filled with liq. medium and under excess pressure of gas-form reducing medium. This obviates also any possible risks of explosion. The granulation chamber is connected via a base tapping-off arrangement to a vessel contg. a metal smelt. In the upper part of the chamber is an inlet for reducing gas, and there is a mouthpiece inserted for the supply of reducing powdering medium. A fluid lock comprises a pipe communicating with the chamber via a valve, and which issues below fluid level in the lock.
SE7604316A 1976-04-13 1976-04-13 Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection SE448835B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7604316A SE448835B (en) 1976-04-13 1976-04-13 Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7604316A SE448835B (en) 1976-04-13 1976-04-13 Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection

Publications (2)

Publication Number Publication Date
SE7604316L SE7604316L (en) 1977-10-14
SE448835B true SE448835B (en) 1987-03-23

Family

ID=20327578

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7604316A SE448835B (en) 1976-04-13 1976-04-13 Atomised metal powder prodn. - giving prod. with very low oxygen content and adjustable carbon content, uses granulation chamber with reduced fluid collection

Country Status (1)

Country Link
SE (1) SE448835B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041986A1 (en) * 1996-04-18 1997-11-13 Rutger Larsson Konsult Ab A process and plant for producing atomized metal powder, metal powder and the use of the metal powder
EP4015109A1 (en) * 2020-12-17 2022-06-22 Linde GmbH Device and method for manufacturing low oxygen metal powder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041986A1 (en) * 1996-04-18 1997-11-13 Rutger Larsson Konsult Ab A process and plant for producing atomized metal powder, metal powder and the use of the metal powder
US6146439A (en) * 1996-04-18 2000-11-14 Rutger Larsson Konsult Ab Process and plant for producing atomized metal powder, metal powder and the use of the metal powder
US6364928B1 (en) * 1996-04-18 2002-04-02 Rutger Larsson Konsult Ab Process and plant for producing atomized metal powder, metal powder and the use of the metal powder
EP4015109A1 (en) * 2020-12-17 2022-06-22 Linde GmbH Device and method for manufacturing low oxygen metal powder

Also Published As

Publication number Publication date
SE7604316L (en) 1977-10-14

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