DE899893C - Process for making iron powder - Google Patents
Process for making iron powderInfo
- Publication number
- DE899893C DE899893C DEP3274A DEP0003274A DE899893C DE 899893 C DE899893 C DE 899893C DE P3274 A DEP3274 A DE P3274A DE P0003274 A DEP0003274 A DE P0003274A DE 899893 C DE899893 C DE 899893C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- iron powder
- carbon
- carbon alloy
- making iron
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 4
- 239000007789 gas Substances 0.000 claims description 7
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 7
- 229910001339 C alloy Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000000889 atomisation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 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
- B22F9/10—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 using centrifugal force
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
Verfahren zum Herstellen von Eisenpulver Die Erfindung betrifft ein Verfahren zum Herstellen von Eisenpulver, das eine gute Verpreßbarkeit und Sinterfähigkeit besitzt. Beide Eigenschaften hängen von,der Gestalt :der einzelnen Eisenkörnchen ab. Eine besonders günstige Kornform erhält man dann, wenn man gemäß der Erfindung als Vormaterial eine flüssige Eisen-Köhlenstoff-Legierung mit 3 .bis q.°/9 Kohlenstoff verwendet, ferner zur Zerstäubung dieser Legierung eine rotierende Scheibe benutzt und schließlich !die Oxydation beim Zerstäuben der Eisen-Kohlenstoff-Legierung durch oxydierende Gase, z. B. Luft, hervorruft, die auf die rotierende Scheibe oder im Abstand von der Seheibe auf die zerstäubte Eisen-Kohlenstoff-Legierung gerichtet wird. Man erhält dann ein Eisenpulver mit hohem Kohlenstoffgehalt und entsprechend hohem Sauerstoffgehalt mit der gelvünschten, günstigen Kornform.Method of making iron powder The invention relates to a Process for the production of iron powder that has good compressibility and sinterability owns. Both properties depend on the shape: the individual iron granules away. A particularly favorable grain shape is obtained if, according to the invention a liquid iron-carbon alloy with 3. to q. ° / 9 carbon as the starting material used, also used a rotating disk to atomize this alloy and finally! the oxidation during the atomization of the iron-carbon alloy oxidizing gases, e.g. B. air, which causes on the rotating disk or in Distance from the window to the atomized iron-carbon alloy will. An iron powder with a high carbon content and correspondingly is then obtained high oxygen content with the desired, favorable grain shape.
Der Vorschlag, nicht mehr von flüssigem weichem Stahl, sondern von flüssigem, höher gekohltemEisen auszugehen, ist bereits an anderer Stelle gemacht worden und stellt für sich allein mithin nicht :den Gedanken der Erfindung !dar. Das Verdüsen von flüssigem Eisen mittels Preßluft, ebenso die Zerstäubung durch Sdhleuderscheiben sind bekannt.The proposal, no longer from molten soft steel, but from Going out of liquid, higher carbon iron has already been done elsewhere and therefore does not in itself represent: the idea of the invention! The atomization of liquid iron by means of compressed air, as well as atomization Sdhleuderscheiben are known.
Gegenstand der Erfindung ist ,die Kombination der ,drei oben in Absatz i erwähnten Merkmale. An Stelle von Luft können auch andere oxydierende Gase verwendet werden. Zweckmäßig ist es, die Abgase abzusaugen. Die Höhe des ,Sauerstoffgehaltes des Eisenpulvers hängt von der Richtung des oxydierenden Gasstromes und von der in .der Zeiteinheit zugeführten Gasmenge ab.The subject of the invention is the combination of the, three above in paragraph i mentioned features. Other oxidizing gases can also be used instead of air will. It is useful to suck off the exhaust gases. The level of the, oxygen content of iron powder depends on the direction of the oxidizing gas flow and on the in .the unit of time supplied amount of gas.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3274A DE899893C (en) | 1948-10-02 | 1948-10-02 | Process for making iron powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3274A DE899893C (en) | 1948-10-02 | 1948-10-02 | Process for making iron powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE899893C true DE899893C (en) | 1953-12-17 |
Family
ID=7358633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP3274A Expired DE899893C (en) | 1948-10-02 | 1948-10-02 | Process for making iron powder |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE899893C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2954313C2 (en) * | 1979-09-11 | 1986-06-19 | Itoh Metal Abrasive Co., Ltd., Nagoya, Aichi | Process for the production of spherical particles or fibers with a predetermined diameter from a melt |
| US10273567B2 (en) | 2014-01-27 | 2019-04-30 | Rovalma, S.A. | Centrifugal atomization of iron-based alloys |
-
1948
- 1948-10-02 DE DEP3274A patent/DE899893C/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2954313C2 (en) * | 1979-09-11 | 1986-06-19 | Itoh Metal Abrasive Co., Ltd., Nagoya, Aichi | Process for the production of spherical particles or fibers with a predetermined diameter from a melt |
| US10273567B2 (en) | 2014-01-27 | 2019-04-30 | Rovalma, S.A. | Centrifugal atomization of iron-based alloys |
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