DE838627C - Process for the production of transformer sheets, dynamo sheets and coil cores - Google Patents
Process for the production of transformer sheets, dynamo sheets and coil coresInfo
- Publication number
- DE838627C DE838627C DED14A DED0000014A DE838627C DE 838627 C DE838627 C DE 838627C DE D14 A DED14 A DE D14A DE D0000014 A DED0000014 A DE D0000014A DE 838627 C DE838627 C DE 838627C
- Authority
- DE
- Germany
- Prior art keywords
- sheets
- iron
- production
- layers
- waterglass
- 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
- 238000000034 method Methods 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 235000013675 iodine Nutrition 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000020374 simple syrup Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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
- H01F1/16—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 in the form of sheets
- H01F1/18—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 in the form of sheets with insulating coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
Verfahren zur Herstellung von Transformatorblechen, Dynamoblechen und Spulenkernen Transformatorbleche, Dynamobleche wie überhaupt 131eclte für lamellierte Magnetkerne, die in elektrischen 'Maschinen, Spulen, Meßgeräten u. dgl. \-erNN-ettdet werden, sind bisher im allgemeinen so hergestellt worden, daß das gewalzte Eisenblech mit einer Papierschicht beklebt wurde. Alsdann wurden die Bleche zur Formgebung gestanzt und derart aufeinandergelegt, daß die einzelnen Bleche durch eine isolierende Papierschicht voneinander getrennt waren. Der Zweck dieser Maßnahme besteht darin, die Wirbelstromverluste und damit die Erwärmung <leg Kerne möglichst niedrig zu halten. Die Verwendun ; \-on Papier hat den Nachteil, daß der sogenannte Füllfaktor gering wird, weil ein großer Teil der Masse des fertigen Kernes \,oti den isolierenden Papierschichten eingenommen wird. Bestrebungen, die Dicke dieser Isolierschicht herabzusetzen, führten dazu, Lacke oder Wasserglaskompositionen zu entwickeln, die in flüssiger Form in äußerst dünner Schicht auf die Bleche aufgetragen werden konnten, beispielsweise indem die Bleche in die flüssige Isoliermasse eingetaucht wurden. Dadurch kann zwar der sogenannte Füllfaktor verbessert werden; es bleibt aber die Schichtdicke der einzelnen Bleche bestehen, die aus walztechnischen Gründen unter ein bestimmtes Mindestmaß nicht herabgedrückt werden kann. Die Dicke der Eisenbleche ist aber auch ein maßgebender Faktor für die Größe der später auftretenden Wirbelstromverluste.Process for the production of transformer sheets, dynamo sheets and coil cores transformer sheets, dynamo sheets like ever 131eclte for laminated Magnetic cores which are used in electrical machines, coils, measuring devices and the like have heretofore been generally manufactured by making the rolled iron sheet was pasted with a layer of paper. Then the sheets were used for shaping punched and placed one on top of the other in such a way that the individual sheets are covered by an insulating Paper layer were separated from each other. The purpose of this measure is to the eddy current losses and thus the heating <put cores as low as possible to keep. The use; \ -on paper has the disadvantage that the so-called fill factor becomes small because a large part of the mass of the finished core \, oti the insulating Layers of paper is taken. Efforts to increase the thickness of this insulating layer lead to the development of lacquers or water-glass compositions that could be applied in liquid form in an extremely thin layer to the metal sheets, for example by immersing the sheets in the liquid insulating compound. As a result, the so-called fill factor can be improved; but it remains that Layer thickness of the individual sheets exist, which for rolling reasons under a certain minimum cannot be suppressed. The thickness of the iron sheets but is also a decisive factor for the size of the later occurring eddy current losses.
Für sogenannte Massekerne, die vor allem in der Hochfrequenztechnik benötigt werden, ist ferner vorgeschlagen worden, das erforderliche Eisen feinverteilt in Isolierstoffmasse einzubetten. Es ist ferner bekannt, die Eisenpartikeldhen auf Isolierstoffträger aufzustäuben und festzukleben. Die bekannten Isolierstoffträger bestehen aus organischen Stoffen, und zwar entweder Kunstharzen allein oder Geweben mit oder ohne Tränkung von Kunstharzen oder natürlichen Harzen.For so-called mass cores, which are mainly used in high-frequency technology is needed It has also been suggested that the necessary Embed iron finely divided in the insulating material. It is also known that the Dusting iron particle thine onto insulating material and sticking it in place. The known Insulating material carriers consist of organic materials, either synthetic resins alone or fabrics with or without impregnation with synthetic or natural resins.
Demgegenüber wird gemäß der Erfindung vorgeschlagen, zur Herstellung von Transformatorblechen. Dynamoblechen und Spulenkernen, bei welchen das Eisen in feirnverteilter Form auf dünne Isolierstoffschichten aufgebracht wird, Wasserglasschichten als Isolierstoffträger zu benutzen. Wasserglas ist selbst bei hohen Temperaturen unverändert beständig und bietet daher gegenüber organischen Isolierstoffträgern entscheidende Vorteile. Diese neigen im Gegensatz zu Wasserglas bei erhöhten Temperaturen zur Verkohlung, so daß sich Leiter bilden, die zum mindesten teilweise die @@4'irkung der Lamellierung aufheben.In contrast, it is proposed according to the invention for production of transformer sheets. Dynamo sheets and coil cores, in which the iron is applied in finely distributed form to thin layers of insulation, layers of water glass to be used as an insulating material carrier. Water glass is even at high temperatures unchanged resistant and therefore offers compared to organic insulating material carriers decisive advantages. In contrast to water glass, these tend to be at elevated temperatures for charring, so that conductors are formed which at least partially have the effect cancel the lamination.
Durch geeignete Zusätze zum Wasserglas, wie beispielsweise Jod oder Borax oder auch Stärkekleister, Gelatine, Zuckersirup - od. ähcil., kann eine -lasse erzeugt werden, die die Eigenschaft hat, selbst in dünnsten Lagen zu einer zusammenhängenden Schicht zu erstarren. Auf diese SAidht wird alsdann mittels der Schmelz- oder Lackspritzpistole das Eisen aufgetragen. Das Verkleben kann hei Verwendung der Lackspritzpistole auch so erfolgen, daß die Wasserglaskomposition als Klebemittel verwendet wird. Eine andere Methode besteht darin, (las Eisen als trockenes Pulver auf noch feuchtes, in dünnster Schicht verteiltes Wasserglas aufzustreuen oder aufzublasen. Auch auf diese «'eise lassen sich dünnste Folien herstellen, bei denen die Isolierstoffschicht gleichzeitig der Träger für (las 1#'isen ist. Es entsteht auf diese Weise eine äußerst dünne, fiexi'ble Eisenschicht auf der M'asserglasfolie, wobei die Dicke der Schicht beliebig %-ariiert werden kann. Die Verbundfolien können in einfacher Weise bis zur Höhe des gewünschten Kernkörpers aufeinandergesehichtet und alsdann formgebend bearbeitet werden. Der so gebildete Körper ist derart leicht beai'beitbar, daß diese Bearbeitung mit Sägen durchgeführt werden kann.By suitable additives to the water glass, such as iodine or Borax or starch paste, gelatine, sugar syrup - or similar, can be a -lasse which has the property of being coherent even in the thinnest layers Layer to solidify. This is then followed by means of the melt or paint spray gun the iron applied. Gluing can also be done when using the paint spray gun done so that the water glass composition is used as an adhesive. One Another method is to (read iron as a dry powder on a still moist, sprinkle or inflate a thin layer of water glass. On too this is can be used to produce the thinnest foils in which the insulating layer is at the same time the carrier for (las 1 # 'isen. In this way an extremely thin, fiexible iron layer on the glass foil, whereby the thickness of the layer can be varied as desired. The composite films can easily up to layered to the height of the desired core body and then shaping to be edited. The body formed in this way is so easy to work that this Machining with saws can be carried out.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED14A DE838627C (en) | 1949-10-04 | 1949-10-04 | Process for the production of transformer sheets, dynamo sheets and coil cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED14A DE838627C (en) | 1949-10-04 | 1949-10-04 | Process for the production of transformer sheets, dynamo sheets and coil cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE838627C true DE838627C (en) | 1952-05-12 |
Family
ID=7028493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED14A Expired DE838627C (en) | 1949-10-04 | 1949-10-04 | Process for the production of transformer sheets, dynamo sheets and coil cores |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE838627C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261816A (en) * | 1925-07-27 | 1926-11-29 | British Thomson Houston Co Ltd | Improvements in and relating to magnetic slot wedges for dynamo electric machines |
| DE675667C (en) * | 1931-11-13 | 1939-05-13 | Vogt Hans | Process for the production of magnetic cores for high frequency purposes |
| DE739209C (en) * | 1933-02-07 | 1943-09-15 | Vogt Hans | Low-loss high-frequency tuning coil with magnetic core |
-
1949
- 1949-10-04 DE DED14A patent/DE838627C/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261816A (en) * | 1925-07-27 | 1926-11-29 | British Thomson Houston Co Ltd | Improvements in and relating to magnetic slot wedges for dynamo electric machines |
| DE675667C (en) * | 1931-11-13 | 1939-05-13 | Vogt Hans | Process for the production of magnetic cores for high frequency purposes |
| DE739209C (en) * | 1933-02-07 | 1943-09-15 | Vogt Hans | Low-loss high-frequency tuning coil with magnetic core |
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