DE10014307B4 - Method for producing a laminated core for electromagnetic assemblies and subsequently produced laminated core - Google Patents
Method for producing a laminated core for electromagnetic assemblies and subsequently produced laminated core Download PDFInfo
- Publication number
- DE10014307B4 DE10014307B4 DE2000114307 DE10014307A DE10014307B4 DE 10014307 B4 DE10014307 B4 DE 10014307B4 DE 2000114307 DE2000114307 DE 2000114307 DE 10014307 A DE10014307 A DE 10014307A DE 10014307 B4 DE10014307 B4 DE 10014307B4
- Authority
- DE
- Germany
- Prior art keywords
- laminated core
- sheets
- additive
- laminated
- enamel
- 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 - Fee Related
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
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
Abstract
Verfahren zum Herstellen von Blechpaketen für elektromagnetische Baugruppen aus beidseitig mit einem Backlack, wie härtbarer Lack oder duroplastischer Kleber, beschichtbaren Elektroblechen, die positioniert und geschichtet zu einem Blechpaket verklebt werden, dadurch gekennzeichnet, dass bei der Pressung des Blechpaketes überschüssiger Backlack an den stirnseitigen Schnittkanten zwischen den Blechen austritt, wobei dem Backlack ein Additiv mit Korrosionsschutzwirkung beigegeben wird, das einen Korrosionsschutz zwischen den verklebbaren Blechen sowie an den äußeren Seitenwänden des Blechpaketes bewirkt und wobei der an den Schnittkanten der Bleche austretende, mit dem Additiv versetzte Backlack an den Blechpaketstirnseiten einen Korrosionsschutzüberzug bildet.A method for the production of laminated cores for electromagnetic assemblies from both sides with a baking varnish, such as curable varnish or thermosetting adhesive, coatable electrical steel sheets, which are positioned and glued in layers to form a laminated core, characterized in that when the laminated core is pressed, excess baking varnish on the frontal cut edges between the sheet metal emerges, with an additive with an anti-corrosive effect being added to the baking varnish, which effects corrosion protection between the bondable sheets and on the outer side walls of the sheet stack, and the baking varnish that has been mixed with the additive forms an anti-corrosion coating on the front sides of the sheet stack .
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von Blechpaketen für elektromagnetische Baugruppen aus beidseitig mit einem Backlack, wie härtbarer Lack oder duroplastischer Kleber, beschichtbaren Elektroblechen, die positioniert und geschichtet zu einem Blechpaket verklebt werden, wobei bei der Pressung des Blechpaketes überschüssiger Backlack an den stirnseitigen Schnittkanten zwischen den Blechen austritt, sowie ein nach diesem Verfahren hergestelltes Blechpaket.The invention relates to a method for producing laminated cores for electromagnetic assemblies from both sides with a baked enamel, such as curable lacquer or thermosetting adhesive, coatable electrical sheets that are positioned and layered glued to a laminated core, wherein in the pressing of the laminated core excess baked enamel on the frontal cutting edges emerges between the sheets, as well as a produced by this method laminated core.
Aus der
Aus der
Beim Verarbeiten von beidseitig mit eine Kleber oder einem Lack, nachfolgend Backlack genannt, beschichteten Elektroblech, wie in der
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Blechpaketen für elektromagnetische Baugruppen vorzuschlagen, das mit wenigen und einfach ausführbaren Verfahrensschritten kostengünstig herstellbare Blechpakete liefert, die sich durch eine hohe Korrosionsbeständigkeit auszeichnen.The invention has for its object to provide a method for the production of laminated cores for electromagnetic assemblies, which provides inexpensive and manufacturable laminations with a few and easily executable process steps, which are characterized by a high corrosion resistance.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass dem Backlack ein Additiv mit Korrosionsschutzwirkung beigegeben wird, das einen Korrosionsschutz zwischen den verklebbaren Blechen sowie an den äußeren Seitenwänden des Blechpaketes bewirkt und wobei der an den Schnittkanten der Bleche austretende, mit dem Additiv versetzte Backlack an den Blechpaketstirnseiten einen Korrosionsschutzüberzug bildet.This object is achieved in a method of the type mentioned in the present invention that the baking enamel is added an additive with anti-corrosive effect, which causes corrosion protection between the glued sheets and on the outer side walls of the laminated core and wherein the emerging at the cutting edges of the sheets, with the additive added baked enamel forms a corrosion protection coating on the laminated core end faces.
Nach der Erfindung wird dem zur beidseitigen Beschichtung des Elektrobleches vorgesehenen Backlack ein Additiv mit Korrosionsschutzwirkung beigegeben. Dieses insbesondere passivierende, Pigmente enthaltende Additiv wirkt auf die Oberfläche des Elektrobleches nach Art einer Grundierung ein, die zur Oxidation der blanken Oberfläche des Elektrobleches führt und einen Korrosionsschutz bildet. Das auf diese Weise vorbehandelte Elektroblech wird in an sich bekannter Weise zu den für das Blechpaket vorgesehenen Blechlamellen gestanzt, wobei die Blechzuschnitte auch gleich Nuten für vorzusehende Wicklungen elektromagnetischer Baugruppen erhalten. Unter ”elektromagnetischen Baugruppen” werden Blechpakete für Ständer und Läufer elektrischer Maschinen sowie Drosselspulen mit Eisenkernen, Transformatoren und Magnete, insbesondere Lasthebe- und Hubmagnete und Teile davon verstanden.According to the invention, an additive with anticorrosion effect is added to the enamel coating provided for the two-sided coating of the electrical sheet. This particular passivating, pigment-containing additive acts on the surface of the electric sheet in the manner of a primer, which leads to the oxidation of the bare surface of the electrical sheet and forms a corrosion protection. The thus pretreated electrical steel sheet is punched in a conventional manner to the provided for the laminated core laminations, the blanks also get equal grooves for windings of electromagnetic assemblies to be provided. "Electromagnetic assemblies" sheet packs for stands and runners of electrical machinery and reactors with iron cores, transformers and magnets, in particular lifting and lifting solenoids and parts thereof understood.
Eine besonders vorteilhafte Ausbildung eines nach dem erfindungsgemäßen Verfahren hergestellten Blechpaketes wird in einem Langstator-Blechpaket gesehen, wie es zum Aufbau des Langstators für Linearmotoren, insbesondere für Magnetschwebefahrzeuge, verwendbar ist.A particularly advantageous embodiment of a laminated core produced by the process according to the invention is seen in a long-stator laminated core, as it is used to construct the long stator for linear motors, in particular for magnetic levitation vehicles.
In vorteilhafter Ausführung der Erfindung werden die aus ferromagnetischem Material bestehenden Ständer- und Läuferblechpakete elektrischer Maschinen oder Blechpakete von Transformatoren, von Elektromagneten oder dergleichen derart hergestellt, dass das zum Stanzen der Bleche verwendete Elektroblech beidseitig beschichtet und dabei dem zur Beschichtung verwendeten härtbaren Lack oder Klebstoff ein Additiv mit Korrosionsschutzpigmenten beigegeben wird.In an advantageous embodiment of the invention, consisting of ferromagnetic material stator and Läufererblechpakete electrical machines or laminated cores of transformers, electromagnets or the like are prepared such that the electrical sheet used for punching the sheets coated on both sides while the curable lacquer or adhesive used for coating a Additive with anti-corrosive pigments is added.
Gemäß der Erfindung werden die mit Backlack und beigemengtem Korrosionsschutzmittel beschichteten und dann gestanzten Elektrobleche bei Erwärmung zum lamellierten Blechpaket zusammengepresst, wobei der Backlack als Kleber zwischen den Blechen wirkt und überschüssiger Backlack an den Stirnkanten des Blechpakets zwischen den verklebbaren Blechen austreten kann. Dieser an den Stirnkanten des Blechpaketes sich ansammelnde überschüssige Backlack enthält ebenfalls das zum Korrosionsschutz beigemengte Additiv und bildet an den Schnittkanten der Elektrobleche ebenfalls den gewunschten Korrosionsschutz für das Blechpaket. Ein Entfernen dieses zum Korrosionsschutz gewünschten und beispielsweise mit Zinkphosphat-Pigmenten durchsetzten überschüssigen Backlacks ist nicht erforderlich.According to the invention, coated with baked enamel and admixed anticorrosion agent and then punched electrical steel sheets are pressed together when heated to lamellierten laminated core, wherein the baked enamel acts as an adhesive between the sheets and excess baked enamel can emerge at the front edges of the laminated core between the glued sheets. This accumulating on the front edges of the laminated core excess baked enamel also contains the additive added for corrosion protection and also forms the desired corrosion protection for the laminated core at the cutting edges of the electrical steel sheets. It is not necessary to remove this excess backcoat, which is desired for the purpose of protecting against corrosion and has been interspersed, for example, with zinc phosphate pigments.
Nach einer Weiterbildung der Erfindung kann in einem zusätzlichen Verfahrensschritt das verpresste und verklebte Blechpaket zusätzlich mit einer Lackschicht ummantelt werden, wobei auch diesem Lack ein Additiv mit Korrosionsschutzwirkung beigegeben sein kann.According to a development of the invention, in an additional method step, the pressed and glued laminated core can be additionally encased with a layer of varnish, it also being possible for this varnish to be accompanied by an additive having an anti-corrosive effect.
Für den Korrosionsschutz der erfindungsgemäß hergestellten Blechpakete ist es weiter förderlich, wenn die durch die Lackschicht und den Backlack zum Blechpaket eindiffundierende Feuchtigkeit an den Schnittkanten der Bleche eine Eisenoxidschicht bildet.For the corrosion protection of the laminated cores according to the invention it is further conducive if the moisture diffusing through the lacquer layer and the enamel to the laminated core forms an iron oxide layer at the cut edges of the metal sheets.
Als Additiv zum Beschichtungsmittel für das zu Blechpaketen zu verarbeitende Elektroblech und für einen zusätzlichen Lacküberzug für die Blechpakete sind neben Zinkphosphat auch Additive, wie Silikate oder Beschichtungen auf Bleimennige-, Zinkstaub-, Zinkchromat-, Eisenoxid-, Phosphat-, Molybdat-, Boratbasis, verwendbar.As an additive to the coating material for the sheet metal to be processed into electrical steel sheet and for an additional paint coating for the laminated cores in addition to zinc phosphate and additives such as silicates or coatings on red lead, zinc dust, Zinkchromat-, iron oxide, phosphate, molybdate, borate, usable.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000114307 DE10014307B4 (en) | 2000-03-23 | 2000-03-23 | Method for producing a laminated core for electromagnetic assemblies and subsequently produced laminated core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000114307 DE10014307B4 (en) | 2000-03-23 | 2000-03-23 | Method for producing a laminated core for electromagnetic assemblies and subsequently produced laminated core |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10014307A1 DE10014307A1 (en) | 2001-09-27 |
DE10014307B4 true DE10014307B4 (en) | 2012-11-29 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE2000114307 Expired - Fee Related DE10014307B4 (en) | 2000-03-23 | 2000-03-23 | Method for producing a laminated core for electromagnetic assemblies and subsequently produced laminated core |
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DE (1) | DE10014307B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11901767B2 (en) | 2021-05-14 | 2024-02-13 | Ge Energy Power Conversion Technology Limited | Compaction plate, associated magnetic mass, stator, rotor, rotating electric machine and driving system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10337915A1 (en) * | 2003-08-18 | 2005-04-14 | Vorwerk & Co. Interholding Gmbh | reluctance motor |
EP2048390A3 (en) * | 2007-10-12 | 2009-08-05 | General Electric Company | Armature with coated sheets, magnetic bearing with an armature and method for assembling an armature |
DE102015014838A1 (en) | 2015-11-14 | 2016-07-21 | Daimler Ag | Stator for an electric machine, electric machine and manufacturing process |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1246071B (en) * | 1961-02-20 | 1967-08-03 | R W Moll & Co | Use of aqueous dispersions of plastics or of natural products similar to plastics to form electrically separating coatings on electrical sheets |
DE3110339C2 (en) * | 1981-03-17 | 1984-09-27 | Thyssen Industrie Ag, 4300 Essen | Method for manufacturing a laminated core for a long-stator linear motor |
DE3319847A1 (en) * | 1983-06-01 | 1984-12-06 | Ruhrgas Ag, 4300 Essen | Process for producing laminated cores from unsiliconised grades for the field-carrying parts of electrical machines and apparatus |
WO1997030504A1 (en) * | 1996-02-12 | 1997-08-21 | Ciba Speciality Chemicals Holding Inc. | Process for the production of laminated cores and electromagnetic units produced therefrom |
-
2000
- 2000-03-23 DE DE2000114307 patent/DE10014307B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1246071B (en) * | 1961-02-20 | 1967-08-03 | R W Moll & Co | Use of aqueous dispersions of plastics or of natural products similar to plastics to form electrically separating coatings on electrical sheets |
DE3110339C2 (en) * | 1981-03-17 | 1984-09-27 | Thyssen Industrie Ag, 4300 Essen | Method for manufacturing a laminated core for a long-stator linear motor |
DE3319847A1 (en) * | 1983-06-01 | 1984-12-06 | Ruhrgas Ag, 4300 Essen | Process for producing laminated cores from unsiliconised grades for the field-carrying parts of electrical machines and apparatus |
WO1997030504A1 (en) * | 1996-02-12 | 1997-08-21 | Ciba Speciality Chemicals Holding Inc. | Process for the production of laminated cores and electromagnetic units produced therefrom |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11901767B2 (en) | 2021-05-14 | 2024-02-13 | Ge Energy Power Conversion Technology Limited | Compaction plate, associated magnetic mass, stator, rotor, rotating electric machine and driving system |
Also Published As
Publication number | Publication date |
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DE10014307A1 (en) | 2001-09-27 |
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Legal Events
Date | Code | Title | Description |
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8110 | Request for examination paragraph 44 | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20130301 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |