DE875906C - Device for producing metal powder - Google Patents
Device for producing metal powderInfo
- Publication number
- DE875906C DE875906C DEA13219A DEA0013219A DE875906C DE 875906 C DE875906 C DE 875906C DE A13219 A DEA13219 A DE A13219A DE A0013219 A DEA0013219 A DE A0013219A DE 875906 C DE875906 C DE 875906C
- Authority
- DE
- Germany
- Prior art keywords
- metal powder
- grinding
- producing metal
- grist
- acceleration
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
Vorrichtung zur Erzeugung von Metallpulver Die Erfindung bezieht sich auf eine Vorrichtung zur Verstellung von Metallpulver durch Mahlung. Hierfür sind schnell laufende Schlagmühlen, kleine l)is mittelgroße Kugelmühlen und Schwingmühlen bekannt. Alle diese fühlen haben sich wegen der geringen erzielten Durchsatzmengen nur 'kleine Anwendungsgebiete erobern können.Apparatus for producing metal powder The invention relates to on a device for adjusting metal powder by grinding. For this are high-speed beater mills, small l) is medium-sized ball mills and oscillating mills known. All of these feel good because of the low throughput rates achieved only 'can conquer small areas of application.
Versuche an Mühlen mit planetenartig bewegten .lahlgefäßen zeigten nun eine neue l@2öglichkeit, wie man Metallpulver 'herstellen kann. Sie besteht darin, den äquivalenten Durchmesser einer Kugelmülile so groß zu machen, daß die an den Beriihrungsstellen der -einzelnen Mahlgutteilch en auftretende Flädhenpressung in einem verhältnismäßig großen Bereich die Festigkeit des Mahlgutes Überschreitet und dieses so zerkleinert. Unter äquivalentem Durchmesser soll hier bei nicht stationären Kugelmühlen der lichte Durchmesser verstanden sein, vervielfacht mit dem Verhältnis der im Mahlgefäßmittelpunkt herrschenden Beschleunigung zur Erdbeschleunigung. Er ist ein Maß für die im Mahlgut auftretenden Flächendrücke, welche durch die darauf lastenden Säulen aus Gut und Mahlkörpern entstehen.Experiments on mills with planets moving now a new way of making metal powder. she consists in making the equivalent diameter of a Kugelmülile so large that the Flädhenpressung occurring at the contact points of the individual grist particles Exceeds the strength of the grist in a relatively large area and crushed it like this. The equivalent diameter should be used here for non-stationary Ball mills should be understood as the clear diameter, multiplied by the ratio the acceleration to the acceleration due to gravity prevailing in the center of the grinding vessel. He is a measure of the surface pressures occurring in the grist, which are caused by the onerous columns of material and grinding media arise.
Es hat sich nun gezeigt, daß bei :einem äquiv aletiten Durchmesser voll 5 m bereits gute Erfolge erzielt wurden.It has now been shown that with: an equiv aletite diameter full 5 m already good results have been achieved.
Bei noch größerem äquivalentem Durchmesser wird die Mahlung so intensiv, daß man auf besondere Mahlkörper verzichten kann, so daß sich das Mahlgut an sich selbst verma'lilt. Solche Durchmesser sind bei stationären Kugelmühlen zwar denkbar und für andere Zwecke auch schon ausgeführt, aber unwirtschaftlich. Auch bereitet die Wärmeabfuhr aus dem Mahlgut Schwierigkeiten.If the equivalent diameter is even larger, the grinding is so intense that that you can do without special grinding media, so that the grist itself even mauled. Such diameters are true in stationary ball mills conceivable and already carried out for other purposes, but uneconomical. Also prepares the heat dissipation from the grist difficulties.
Es bleibt also die Planetenmühle. Diese besteht bekanntlich aus einem um seine Achse drehbaren Gehäuse; in welchem exzentrisch ein oder mehrere Mahlgefäße achsparallel drehbar gelagert sind, so daß hei entsprechendem Antrieb die Mahlgefäße eine planetenartige Bewegung um die Gehäuseachse vollführen. Zur Durchführung der Erfindung sind alle Ausführungsformen der Planetenmühle geeignet; insbesondere bei absatzweisem oder stetigem Betrieb, trocken und naß, mit Luft bzw. Flüssigkeitsaustrag, mit und ohne Sichtung; bei grober und feiner Mahlung.So it remains the planetary mill. As is well known, this consists of one housing rotatable about its axis; in which eccentrically one or more grinding vessels are rotatably mounted axially parallel, so that the grinding vessels are heated with a corresponding drive perform a planetary movement around the housing axis. To carry out the In accordance with the invention, all embodiments of the planetary mill are suitable; especially at intermittent or continuous operation, dry and wet, with air or liquid discharge, with and without sighting; with coarse and fine grinding.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA13219A DE875906C (en) | 1951-04-19 | 1951-04-19 | Device for producing metal powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA13219A DE875906C (en) | 1951-04-19 | 1951-04-19 | Device for producing metal powder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE875906C true DE875906C (en) | 1953-05-07 |
Family
ID=6922773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA13219A Expired DE875906C (en) | 1951-04-19 | 1951-04-19 | Device for producing metal powder |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE875906C (en) |
-
1951
- 1951-04-19 DE DEA13219A patent/DE875906C/en not_active Expired
Non-Patent Citations (1)
Title |
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None * |
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