DE871519C - Process for the production of alloy powder for mass cores - Google Patents
Process for the production of alloy powder for mass coresInfo
- Publication number
- DE871519C DE871519C DES22861A DES0022861A DE871519C DE 871519 C DE871519 C DE 871519C DE S22861 A DES22861 A DE S22861A DE S0022861 A DES0022861 A DE S0022861A DE 871519 C DE871519 C DE 871519C
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- production
- alloy powder
- metal compounds
- powder
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
-
- 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
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
Verfahren zur Herstellung von Legierungspulver für Massekerne, Die Erfindung hat ein Verfahren zur Herstellung eines Legierungspulvers für Massekerne aus Metallverbindungen, z. B. Oxyden, Carbonaten, Hvdroxyden, und/oder Metalfpulvern zum Gegenstand. Dieses Verfahren ist dadurch gekennzeichnet, daß außer Eisen und Nickel zusätzlich Molybdän und/oder Chrom in Form von Metallverbindungen, wie Oxyden, Carbonaten, Hydroxyden, und/oder in Form von Metallpulvern in geeignetem Verhältnis gut gemischt und in einer im Falle der Verwendung von Metallverbindungen zur Reduktion dienenden und im Falle der Verwendung von Metallpulvern eine Oxydation verhindernden Atmosphäre einer Glühbehandlung bei einer unterhalb der Schmelztemperatur der Legierungsbestandteile liegenden Temperatur unterworfen werden, durch welche eine gesinterte Legierung entsteht, die leicht zu Pulver einer für Massekerne geeigneten Feinheit zermahlen wird. Es ist zwar bekannt Z. B. Eisen, Nickel und Molybdän zu einer Legierling zusammenzuschmelzen. Aus solchen erschrnolzenen Legierungen läßt sich aber schwer ein zur Massekernfertigung geeignetes feines Pulver durch Mahlen herstellen, es sei denn, man versucht, z. B. durch voraufgehendes Walzen, die erschmolzene Legierung spröde zu machen. Um solche zusätzliche Arbeitsgänge zu vermeiden, wendet man erfindungsgemäß eine Glühbehandlung an, deren Temperatur unterhalb der Schmelztemperatur des am niedrigsten schmelzenden Legierungsbestandteiles liegt und die nur eine gesinterte L - e ' gieiung * ergibt. Diese läßt sich infolge ihres fockeren Gefüges -leicht zu 'Pulver einer für Massekerne geeigneten Feinheit zermahlen, so daß der mit der bekannten erschmolzenen Legierung aus Nickel, Eisen und Molybdän. erzielte Vorteil z. B. einer Erhöhung der Permeabilität und einer Herabsetzung der Hystereseverluste beispielsweise ohne zusätzliches Walzen der Legierung erreicht wird. Der gleiche Erfolg hinsichtlich der Erhöhung der Permeabilität und Herabsetzung der Hystereseverluste oder eine andere gewünschte Beeinflussung der magnetischen oder elektrischen Eigenschaften der Legierung, wie Herabsetzung der Sättigung und elektrischen Leitfähigkeit, ohne zusätzliche Bearbeitung der erfindungsgemäß gewonnenen Legierung läßt sich durch Zusetzen von Chrom bei gleicher Glühbehandlung erreichen. Die dem Eisennickel beigegebenen Zusätze können z. B. io% Molybdän und/oder Chrom betragen, wenn 4o bis 85 % Nickel und als Rest Eisen verwendet werden. Die einzelnen Legierungsbestandteile können in Form von Metallverbiridungen, wie Oxyden, Carbonaten und/oder Hydroxyden, und/ oder Metallpulvern Anwendung finden.A method for producing alloy powder for bulk cores. The invention has a method for producing an alloy powder for bulk cores from metal compounds, e.g. B. oxides, carbonates, hydroxides, and / or metal powders to the subject. This method is characterized in that, in addition to iron and nickel, molybdenum and / or chromium in the form of metal compounds such as oxides, carbonates, hydroxides and / or in the form of metal powders are well mixed in a suitable ratio and in one case when metal compounds are used The atmosphere used for reduction and, in the case of the use of metal powders, prevents oxidation, is subjected to an annealing treatment at a temperature below the melting temperature of the alloy components, which creates a sintered alloy that is easily ground to a powder of a fineness suitable for mass cores. It is known to fuse, for example, iron, nickel and molybdenum to form an alloy. From such melted alloys, however, it is difficult to produce a fine powder suitable for mass core production by grinding, unless one tries, for. B. by preceding rolling to make the molten alloy brittle. To such additional operations to be avoided, it applies according to the invention, an annealing treatment in which the temperature is below the melting temperature of the lowest melting alloy on the component and only a sintered L - e 'gieiung * results. Due to its fuzzy structure, this can be easily ground to a powder of a fineness suitable for mass cores, so that that of the known molten alloy of nickel, iron and molybdenum. achieved advantage z. B. an increase in permeability and a reduction in hysteresis losses is achieved, for example, without additional rolling of the alloy. The same results in terms of increasing the permeability and decreasing the hysteresis loss, or other desired manipulation to achieve the magnetic or electric properties of the alloy, such as reduction of the saturation and electrical conductivity, can without additional processing of the alloy according to the invention obtained by adding chromium at the same annealing treatment . The additives added to the iron nickel can, for. B. 10% molybdenum and / or chromium, if 40 to 85 % nickel and the remainder iron are used. The individual alloy components can be used in the form of metal compounds, such as oxides, carbonates and / or hydroxides, and / or metal powders.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES22861A DE871519C (en) | 1951-04-22 | 1951-04-22 | Process for the production of alloy powder for mass cores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES22861A DE871519C (en) | 1951-04-22 | 1951-04-22 | Process for the production of alloy powder for mass cores |
Publications (1)
Publication Number | Publication Date |
---|---|
DE871519C true DE871519C (en) | 1953-03-23 |
Family
ID=7477114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES22861A Expired DE871519C (en) | 1951-04-22 | 1951-04-22 | Process for the production of alloy powder for mass cores |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE871519C (en) |
-
1951
- 1951-04-22 DE DES22861A patent/DE871519C/en not_active Expired
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