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 collectionInfo
- 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
Links
- 239000012530 fluid Substances 0.000 title abstract 4
- 239000002184 metal Substances 0.000 title abstract 4
- 238000005469 granulation Methods 0.000 title abstract 3
- 230000003179 granulation Effects 0.000 title abstract 3
- 239000000843 powder Substances 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052799 carbon Inorganic materials 0.000 title abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- 238000000227 grinding Methods 0.000 abstract 3
- 229930195733 hydrocarbon Natural products 0.000 abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 241001062472 Stokellia anisodon Species 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
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.
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) |
-
1989
- 1989-10-18 SE SE8903431A patent/SE8903431D0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8903431D0 (en) | 1989-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 8903431-8 |