DE2726974A1 - PROCESS FOR THE MANUFACTURING OF MAGNETIC BODIES FOR ELECTRICAL MACHINERY AND EQUIPMENT - Google Patents
PROCESS FOR THE MANUFACTURING OF MAGNETIC BODIES FOR ELECTRICAL MACHINERY AND EQUIPMENTInfo
- Publication number
- DE2726974A1 DE2726974A1 DE19772726974 DE2726974A DE2726974A1 DE 2726974 A1 DE2726974 A1 DE 2726974A1 DE 19772726974 DE19772726974 DE 19772726974 DE 2726974 A DE2726974 A DE 2726974A DE 2726974 A1 DE2726974 A1 DE 2726974A1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- magnetic bodies
- electrical machines
- bodies
- magnet
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Description
Akademie der Wissenschaften der DDRAcademy of Sciences of the GDR
1199 Berlin-Adlershof 27 2697 A1199 Berlin-Adlershof 27 2697 A
Rudower Chaussee 5Rudower Chaussee 5
Magnetkörper für elektrische Maschinen und GeräteMagnetic bodies for electrical machines and devices
Die Erfindung betrifft Magnetkörper für elektrische Maschinen und Geräte ι insbesondere für elektrische Kleinmaschinen, bei denen der Magnetkörper einem magnetischen Vüechselfeld ausgesetzt ist#The invention relates to magnetic bodies for electrical machines and devices ι in particular for small electrical machines, where the magnetic body is exposed to an alternating magnetic field #
Magnetkörper elektrischer Maschinen und Geräte werden bei Wiechselfelderregung allgemein in lameliierter Bauweise gefertigt. Bei der Stanztechnik ist eine optimale feldgeometrische Herstellung der Magnetkörper nicht zu erzielen· Zur Ablösung dieser, aus technologischen Gründen oft mit einer ungünstigen Magnetfeldgeometrie verbundenen sehr aufwendigen Bauweise ist gemäß WP 108 628 eine ferromagnetische, hochohmige Legierung zum Herstellen kompakter Magnetkörper für elektrische Maschinen bekannt. Die Legierung besteht aus 74- bis 88 % Bisen, 4 bis 8 % Chrom, 4 bis 8 % Aluminium, 2 bis 5 % Siliaium, 2 bis 5 % Mangan und maximal 0,8 % Phosphor.Magnetic bodies of electrical machines and devices are generally manufactured in a laminated construction with oscillating field excitation. With the punching technology, an optimal field-geometric production of the magnetic bodies cannot be achieved.To replace this very complex construction, which for technological reasons is often associated with an unfavorable magnetic field geometry, a ferromagnetic, high-resistance alloy for the production of compact magnetic bodies for electrical machines is known according to WP 108 628. The alloy consists of 74 to 88 % iron, 4 to 8% chromium, 4 to 8 % aluminum, 2 to 5% silicon, 2 to 5% manganese and a maximum of 0.8% phosphorus.
Sie eignet sich insbesondere zum Herstellen der Magnetkörper im Feingußverfahrene Die Anwendung eines effektiveren Gußver— fahrens scheidet auf Grund der inneren Struktur der Legierung praktisch aus. Ungünstig bei der Feingußtechnik nach dem Wachsäusschmelzverfahren sind die technologischen und ökonomischen Grenzen des Verfahrens.It is particularly suitable for manufacturing magnet bodies using the precision casting process. The use of a more effective casting process is practically ruled out due to the internal structure of the alloy . The technological and economic limits of the process are unfavorable in the investment casting technique using the wax melt process.
Der Erfindung liegt die Aufgabe zugrunde, Magnetkörper für elektrische Maschinen und Geräte zu entwickeln, die aus einer weichmagnetischen Eisenlegierung mit hoher Magnetisierbarkeit und geringen Wechselfeldverlusten bestehen und nach hoohproduktiven Verfahren der Massenfertigung ökonomisch und in beliebiger Form herstellbar sind. The invention is based on the object of developing magnetic bodies for electrical machines and devices, which consist of a soft magnetic iron alloy with high magnetizability and low alternating field losses and which can be produced economically and in any form by high-productivity methods of mass production.
709881/0753709881/0753
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Magnetkörper im Hochtemperaturdruckgußverfahren hergestellt sind und aus einer Weicheisen-Legierung bestehen, die bis 1 % metallurgische Begleitelemente, bis 3 % Chrom, bis 3 % Aluminium sowie 5 bis 7 % Silizium enthält.According to the invention, this object is achieved in that the magnetic bodies are manufactured in a high-temperature die-casting process and consist of a soft iron alloy containing up to 1% metallurgical accompanying elements, up to 3% chromium, up to 3 % aluminum and 5 to 7% silicon.
Nach zweckmäßigen Ausgestaltungen der Erfindung enthält die Weicheisen-Legierung als zusätzlichen Legierungsbestandteil 1 bis 5 % Nickel und sind die Magnetkörper zusammen mit An- und Einbauteilen als ein Gußteil ausgebildet· Zweckmäßigerweise sind nach der Erfindung in die Magnetkörper Bauteile aus anderen Werkstoffen eingegosseneAccording to advantageous embodiments of the invention, the soft iron alloy contains as an additional alloy component 1 to 5% nickel and the magnet bodies are designed as a cast part together with add-on and built-in parts · Appropriately are according to the invention in the magnet body components cast from other materials
Die Erfindung ermöglicht eine rationellere Herstellung elektrischer Maschinen und Geräte. Sie bildet die Grundlage für eine weitergehende Ablösung der lamellierten Bauweise weichmagnetischer Magnetkörper bis zu einer bestimmten Baugröße durch die Kompaktbauweise« Mit der Erfindung wird erstmals das Hochtemperaturdruckgußverfahren für die Herstellung von weichmagnetischen Bauteilen erschlossen· Die erfindungsgemäßen Magnetkörper besitzen bessere physikalische Eigenschaften (hohen elektrischen Widerstand, niedriges Hc , hohe Induktion in niedrigen Feldern, niedriges spezifisches Gewicht) und sind mit geringerem Aufwand herstellbare Die bei der bekannten lamellierten Bauweise durch den Verarbeitungsprozeß entstehenden nachteiligen magnetischen Effekte werden vermieden· Gegenüber dem Peingußverfahren besitzt das erfindungsgemäß vorgesehene Druckgußverfahren den Vorteil, daß Bauteile aus anderen Werkstoffen eingegossen werden können. Ferner verringern sich die technologischen Stufen wesentlich, Oberflächengüte und Maßhaltigkeit werden verbessert·The invention enables a more rational production of electrical Machines and devices. It forms the basis for a more extensive replacement of the laminated construction of soft magnetic magnetic bodies up to a certain size through the compact design «With the invention, the high-temperature die-casting process for the production of soft magnetic components developed The magnetic bodies according to the invention have better physical properties (high electrical resistance, low Hc, high induction in low fields, low specific gravity) and are Those produced by the manufacturing process in the known laminated construction can be produced with less effort disadvantageous magnetic effects are avoided Die casting process has the advantage that components are made from other materials can be poured. Furthermore, the technological levels, surface quality and dimensional accuracy are significantly reduced are improved
Die Erfindung ist nachstehend an einem Ausführungsbeispiel näher erläutert.The invention is explained in more detail below using an exemplary embodiment.
Das Ausführungsbeispiel bezieht sich auf Rotoren für elektrische Kleinmaschinen« Hierbei bestehen die Rotoren aus technischem Weicheisen mit einem maximalen Kohlenstoffgehalt von 0,05 %% 6 % Silizium, 2 % Chrom und 2 % Aluminium. Die Rotoren sind im Hochtemperaturdruckgußverfahren mit einer Mehrfachform aus einem temperaturwecheelbeständigeÄ KE-Wtrketoff hergestellt worden. Die Stahlwolle der Roteren ist eingegossen· 709881/0 7S1 The exemplary embodiment relates to rotors for small electrical machines. Here, the rotors consist of technical soft iron with a maximum carbon content of 0.05 %% 6 % silicon, 2% chromium and 2 % aluminum. The rotors have been manufactured in a high-temperature die-casting process with a multiple mold from a temperature-change-resistant Ä KE-Wtrketoff. The steel wool of the Roteren is poured in · 709881/0 7S1
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD19349576A DD126155A1 (en) | 1976-06-22 | 1976-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2726974A1 true DE2726974A1 (en) | 1978-01-05 |
Family
ID=5504914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772726974 Withdrawn DE2726974A1 (en) | 1976-06-22 | 1977-06-15 | PROCESS FOR THE MANUFACTURING OF MAGNETIC BODIES FOR ELECTRICAL MACHINERY AND EQUIPMENT |
Country Status (3)
Country | Link |
---|---|
DD (1) | DD126155A1 (en) |
DE (1) | DE2726974A1 (en) |
GB (1) | GB1577655A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002215A1 (en) * | 1979-04-10 | 1980-10-16 | Spodig Heinrich | Permanent magnet generator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19643602A1 (en) * | 1996-10-22 | 1998-04-23 | Dresden Ev Inst Festkoerper | Process for the production of massive magnetic bodies |
-
1976
- 1976-06-22 DD DD19349576A patent/DD126155A1/xx unknown
-
1977
- 1977-06-15 DE DE19772726974 patent/DE2726974A1/en not_active Withdrawn
- 1977-06-21 GB GB2584177A patent/GB1577655A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002215A1 (en) * | 1979-04-10 | 1980-10-16 | Spodig Heinrich | Permanent magnet generator |
Also Published As
Publication number | Publication date |
---|---|
DD126155A1 (en) | 1977-06-22 |
GB1577655A (en) | 1980-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |