DE159854C - - Google Patents
Info
- Publication number
- DE159854C DE159854C DENDAT159854D DE159854DA DE159854C DE 159854 C DE159854 C DE 159854C DE NDAT159854 D DENDAT159854 D DE NDAT159854D DE 159854D A DE159854D A DE 159854DA DE 159854 C DE159854 C DE 159854C
- Authority
- DE
- Germany
- Prior art keywords
- liquid metal
- wheels
- metal jet
- atomized
- wings
- 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.)
- Active
Links
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000007711 solidification Methods 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
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die den Gegenstand der vorliegenden Erfindung bildende A'Orrichtung dient zur Durchführung derjenigen bereits bekannten Verfahren zur Zerstäubung von flüssigem Metall, bei denen der aus einer Röhre fließende Strahl der Metallflüssigkeit, von sich in schneller Umdrehung befindlichen Flügeln eines Flügelrades getroffen, in tangentialer Richtung abgeschleudert und dadurch zerstäubt wird.The device forming the subject of the present invention is used for implementation those already known processes for atomizing liquid metal, in which the jet of metal liquid flowing out of a tube, by itself in faster rotating blades of an impeller hit, in tangential Direction is thrown off and thereby atomized.
Um eine besonders feine Zerstäubung des flüssigen Metalles zu erzielen und um einen Metallstaub zu erhalten, wie solcher beispielsweise als Füllmaterial für SammlerplattenTo ensure a particularly fine atomization of the To achieve liquid metal and to obtain a metal dust, such as such for example as filling material for collector plates
u. dgl, im großen Umfange gebraucht wird, wird in der Weise vorgegangen, daß an Stelle
eines einzigen Flügelrades zwei konzentrisch ineinandersteckende Flügelräder vorgesehen
sind, welche sich mit großer Geschwindigkeit, jedoch im entgegengesetzten Sinne drehen
und durch rasch hintereinander folgende Schläge auf den flüssigen Metallstrahl denselben
sehr fein zu zerstäuben vermögen.
In der beiliegenden Zeichnung ist diese Vorrichtung veranschaulicht, und zwar in
Fig. ι im Längsschnitt, in Fig. 2 in Vorderansicht und in Fig. 3 in einem Schnitt nach
Linie A-B der Fig. 2.and the like is used on a large scale, the procedure is in such a way that instead of a single impeller, two concentrically interlocking impellers are provided, which rotate at high speed, but in opposite directions and by rapidly successive blows on the liquid metal jet able to atomize it very finely.
This device is illustrated in the accompanying drawing, namely in FIG. 1 in a longitudinal section, in FIG. 2 in a front view and in FIG. 3 in a section along line AB in FIG. 2.
Das Gestell α (Fig. 1) trägt ein Gehäuse b, in welchem zwei konzentrisch ineinandersteckende, mit den Flügeln dd versehene Räder c c1 auf den hohlen Wellen hh1, die sich auf der Achse e mit großer Geschwindigkeit, jedoch im entgegengesetzten Sinne drehen, gelagert sind. Der aus der Zuleitung/gegen die Flügel des inneren Rades c1 strömende flüssige Metallstrahl wird zunächst von den Flügeln d des inneren Rades vorbehandelt und erfährt eine weitere Zerstäubung durch die denselben ebenfalls treffenden Flügel d des äußeren Rades c. The frame α (Fig. 1) carries a housing b, in which two concentrically nested wheels c c 1 provided with the wings dd on the hollow shafts hh 1 , which rotate on the axis e at high speed, but in opposite directions , are stored. The liquid metal jet flowing from the supply line / against the wings of the inner wheel c 1 is first pretreated by the wings d of the inner wheel and is further atomized by the same also striking wings d of the outer wheel c.
Um zu vermeiden, daß der aus der Leitung/ austretende schmelzflüssige Metallstrahl, einer plötzlichen Abkühlung ausgesetzt, erkaltet, und daß festgewordene Tropfen des-.selben sich auf dem Flügelwerk festsetzen, wird das Gehäuse b durch eine Heizvorrichtung, welche in der vorliegenden Ausführungsform durch eine Gasfeuerung g dargestellt ist, naturgemäß aber auch durch jede andere Heizung, wie z. B. eine elektrische usw., ersetzt werden kann, erwärmt. Die Temperatur wird hierbei zweckmäßig derart bemessen, daß das Metall während des Schleudervorganges beständig auf einer dicht über seinem Schmelzpunkt liegenden Temperatur erhalten wird, so daß dasselbe beim Austritt aus der Leitung einer plötzlichen Erkaltung nicht ausgesetzt und in einer Temperatur von der Schleudervorrichtung zerstäubt wird, welche die Entstehung größerer Körner durch plötzliches Festwerden unmöglich macht, so daß man den flüssigen Metallstrahl in ganz feine Teilchen zerlegen und in feinen Staub umwandeln kann. Die Feinheit des Zerstäubungsgrades läßt sich durch passende Bemessung der Drehungsgeschwindigkeit der Räder regeln. Je größer die Umfangsge-In order to avoid that the molten metal jet emerging from the line / exposed to a sudden cooling down, and that solidified drops of the same settle on the wing mechanism, the housing b is by a heating device, which in the present embodiment by a Gas firing g is shown, but naturally also by any other heating, such as. B. an electrical, etc., can be replaced, heated. The temperature is expediently set in such a way that the metal is constantly kept at a temperature just above its melting point during the centrifugal process, so that it is not exposed to a sudden cooling when it leaves the line and is atomized at a temperature by the centrifugal device, which makes the formation of larger grains by sudden solidification impossible, so that the liquid metal jet can be broken down into very fine particles and converted into fine dust. The fineness of the degree of atomization can be regulated by appropriately measuring the speed of rotation of the wheels. The larger the circumferential
schwindigkeit der Räder ist, desto feiner und wirksamer erfolgt die Zerstäubung.speed of the wheels, the finer and more effective the atomization.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE159854C true DE159854C (en) |
Family
ID=425890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT159854D Active DE159854C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE159854C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE948668C (en) * | 1939-10-15 | 1956-09-06 | Degussa | Device for the production of powders from metals or metal alloys |
WO1993004808A1 (en) * | 1991-09-05 | 1993-03-18 | Technalum Research, Inc. | Method of preparing metal powder with a narrow size distribution |
-
0
- DE DENDAT159854D patent/DE159854C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE948668C (en) * | 1939-10-15 | 1956-09-06 | Degussa | Device for the production of powders from metals or metal alloys |
WO1993004808A1 (en) * | 1991-09-05 | 1993-03-18 | Technalum Research, Inc. | Method of preparing metal powder with a narrow size distribution |
US5302182A (en) * | 1991-09-05 | 1994-04-12 | Technalum Research, Inc. | Method of preparing particles with a controlled narrow distribution |
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