SE8903431L - 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
SE8903431L
SE8903431L SE8903431A SE8903431A SE8903431L SE 8903431 L SE8903431 L SE 8903431L SE 8903431 A SE8903431 A SE 8903431A SE 8903431 A SE8903431 A SE 8903431A SE 8903431 L SE8903431 L SE 8903431L
Authority
SE
Sweden
Prior art keywords
gas
reducing
medium
granulation chamber
liq
Prior art date
Application number
SE8903431A
Other languages
Swedish (sv)
Other versions
SE8903431D0 (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 SE8903431A priority Critical patent/SE8903431D0/en
Publication of SE8903431L publication Critical patent/SE8903431L/en
Publication of SE8903431D0 publication Critical patent/SE8903431D0/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.
SE8903431A 1989-10-18 1989-10-18 PROCEDURE FOR MANUFACTURE OF ATOMIZED METAL POWDER SE8903431D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8903431A SE8903431D0 (en) 1989-10-18 1989-10-18 PROCEDURE FOR MANUFACTURE OF ATOMIZED METAL POWDER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903431A SE8903431D0 (en) 1989-10-18 1989-10-18 PROCEDURE FOR MANUFACTURE OF ATOMIZED METAL POWDER

Publications (2)

Publication Number Publication Date
SE8903431L true SE8903431L (en) 1989-10-18
SE8903431D0 SE8903431D0 (en) 1989-10-18

Family

ID=20377187

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903431A SE8903431D0 (en) 1989-10-18 1989-10-18 PROCEDURE FOR MANUFACTURE OF ATOMIZED METAL POWDER

Country Status (1)

Country Link
SE (1) SE8903431D0 (en)

Also Published As

Publication number Publication date
SE8903431D0 (en) 1989-10-18

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