DE973972C - Process for the production of pressed magnetizable cores - Google Patents

Process for the production of pressed magnetizable cores

Info

Publication number
DE973972C
DE973972C DES61692D DES0061692D DE973972C DE 973972 C DE973972 C DE 973972C DE S61692 D DES61692 D DE S61692D DE S0061692 D DES0061692 D DE S0061692D DE 973972 C DE973972 C DE 973972C
Authority
DE
Germany
Prior art keywords
pressed
cores
production
bodies
layered
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
Application number
DES61692D
Other languages
German (de)
Inventor
Bernhard Ruff
Wolfgang Dipl-Ing Steidle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES61692D priority Critical patent/DE973972C/en
Application granted granted Critical
Publication of DE973972C publication Critical patent/DE973972C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Soft Magnetic Materials (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung gepreßter magnetisierbarer Kerne nach Art der Massekerne durch Pressung von in eine Preßform eingeschichteten vorgepreßten Teilkörpern.The invention relates to a method of making pressed magnetizable cores like the mass cores by pressing into a mold layered pre-pressed part-bodies.

Es ist bekannt, Teilkörper in Tablettenform vorzupressen und diese Tabletten übereinanderzuschichten und dann senkrecht zu ihren Begrenzungsflächen zusammenzupressen. Insbesondere ist es bekannt, Tabletten unterschiedlicher Zusammensetzung zu verwenden, um spezielle magnetische Charakteristika zu erhalten.It is known to pre-press partial bodies in tablet form and these Layer tablets on top of each other and then perpendicular to their boundary surfaces to squeeze. In particular, it is known to use tablets of different compositions to be used to obtain special magnetic characteristics.

Nach den bekannten Verfahren werden im wesentlichen nur Stabkerne erzeugt, die einen verhältnismäßig geringen Durchmesser haben.According to the known method, essentially only rod cores are used generated that have a relatively small diameter.

Der Erfindung liegt die Aufgabe zugrunde, ein Preßverfahren anzugeben, das auch die Pressung kompakter Kerne gestattet.The invention is based on the object of specifying a pressing method, which also allows compact cores to be pressed.

Erfindungsgemäß wird von vorgepreßten Teilkörpern in Stabform ausgegangen, die senkrecht zu ihrer Längsachse vorgepreßt sind, diese stabförmigen Teilkörper werden in eine Preßform nebeneinandergeschichtet und senkrecht zur Richtung des Vorpreßdruckes der Teilkörper zum fertigen Kern verpreßt.According to the invention, pre-pressed partial bodies in rod form are assumed, which are pre-pressed perpendicular to their longitudinal axis, this rod-shaped part body are layered side by side in a mold and perpendicular to the direction of the Vorpreßdruckes pressed the part of the body to the finished core.

Fig. i zeigt in eine Preßform 2 nebeneinandergeschichtete, aus Pulver vorgeformte Teilkörper 6, deren Zusammenpressung zu einem Kern mittels des Stempels 7 erfolgt. Die Vorpressung der einzelnen Teilkörper 6 erfolgt, wie aus Fig. ? durch die eingetragenen Pfeile hervorgeht, mit einem Preßdruck in Richtung der geringeren Höhe der Teilkörper, also senkrecht zur Richtung des Druckes bei der Fertigpressung des Kerns.FIG. I shows powder layered next to one another in a compression mold 2 preformed body parts 6, which are pressed together to form a core by means of the punch 7 takes place. The pre-pressing of the individual partial bodies 6 takes place, as shown in FIG. by the registered arrows can be seen, with a pressing pressure in the direction of the lower Height of the part of the body, i.e. perpendicular to the direction of pressure during the final pressing of the core.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung gepreßter magnetisierbarer Kerne nach Art der Massekerne durch Pressung von in einer Preßform eingeschichteten vorgepreßten Teilkörpern, dadurch gekennzeichnet, daß die vorgepreßten Teilkörper Stabform besitzen, senkrecht zu ihrer Längsachse vorgepreßt sind und nach Nebeneinanderschichtung in der Preßform senkrecht zur Richtung ihres Vorpreßdrucks zum fertigen Kern verpreßt werden. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 513 761, 68o 568; französische Patentschrift N r. 794081; USA.-Patentschrift Nr. 1 982 689. In Betracht gezogene ältere Patente: Deutsche Patente Nr. 831 857, 833 093, 739 209.PATENT CLAIM: A process for the production of pressed magnetizable cores in the manner of mass cores by pressing pre-pressed part-bodies layered in a press mold, characterized in that the pre-pressed part-bodies have the shape of a rod, are pre-pressed perpendicular to their longitudinal axis and, after being layered next to one another in the press mold, perpendicular to the direction of their pre-compression pressure finished core are pressed. Considered publications: German Patent Specifications No. 513 761, 68o 568; French patent no. 794081; USA. Patent No. 1 982 689. Contemplated older patents. German Patent Nos 831857, 833093, 739209..
DES61692D 1939-04-25 1939-04-25 Process for the production of pressed magnetizable cores Expired DE973972C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES61692D DE973972C (en) 1939-04-25 1939-04-25 Process for the production of pressed magnetizable cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES61692D DE973972C (en) 1939-04-25 1939-04-25 Process for the production of pressed magnetizable cores

Publications (1)

Publication Number Publication Date
DE973972C true DE973972C (en) 1960-08-04

Family

ID=7495053

Family Applications (1)

Application Number Title Priority Date Filing Date
DES61692D Expired DE973972C (en) 1939-04-25 1939-04-25 Process for the production of pressed magnetizable cores

Country Status (1)

Country Link
DE (1) DE973972C (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513761C (en) * 1927-12-24 1930-12-02 Weitverkehrskabel G M B H Process for the production of mass cores from hard iron powder
US1982689A (en) * 1931-03-16 1934-12-04 Johnson Lab Inc Magnetic core material
FR794081A (en) * 1934-08-21 1936-02-07 Press-molded products and their manufacturing process
DE680568C (en) * 1936-08-06 1939-08-31 Preh Elektro Feinmechanik Process for the production of tuning screws for magnetic mass cores
DE739209C (en) * 1933-02-07 1943-09-15 Vogt Hans Low-loss high-frequency tuning coil with magnetic core
DE831857C (en) * 1937-09-16 1952-02-18 Hans Vogt Dr H C Method and device for the production of low-loss high-frequency iron moldings
DE833093C (en) * 1936-12-02 1952-03-03 Hans Vogt Dr H C Process for the production of molded mass core parts with protrusions and compression mold

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513761C (en) * 1927-12-24 1930-12-02 Weitverkehrskabel G M B H Process for the production of mass cores from hard iron powder
US1982689A (en) * 1931-03-16 1934-12-04 Johnson Lab Inc Magnetic core material
DE739209C (en) * 1933-02-07 1943-09-15 Vogt Hans Low-loss high-frequency tuning coil with magnetic core
FR794081A (en) * 1934-08-21 1936-02-07 Press-molded products and their manufacturing process
DE680568C (en) * 1936-08-06 1939-08-31 Preh Elektro Feinmechanik Process for the production of tuning screws for magnetic mass cores
DE833093C (en) * 1936-12-02 1952-03-03 Hans Vogt Dr H C Process for the production of molded mass core parts with protrusions and compression mold
DE831857C (en) * 1937-09-16 1952-02-18 Hans Vogt Dr H C Method and device for the production of low-loss high-frequency iron moldings

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