DE972678C - Process for the production of inorganic films for the insulation of electrical machines and apparatus - Google Patents

Process for the production of inorganic films for the insulation of electrical machines and apparatus

Info

Publication number
DE972678C
DE972678C DES16743D DES0016743D DE972678C DE 972678 C DE972678 C DE 972678C DE S16743 D DES16743 D DE S16743D DE S0016743 D DES0016743 D DE S0016743D DE 972678 C DE972678 C DE 972678C
Authority
DE
Germany
Prior art keywords
fabric
gaps
inorganic
insulation
tissue
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
DES16743D
Other languages
German (de)
Inventor
Karl Knoll
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 DES16743D priority Critical patent/DE972678C/en
Application granted granted Critical
Publication of DE972678C publication Critical patent/DE972678C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/06—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances asbestos
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/084—Glass or glass wool in binder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)
  • Laminated Bodies (AREA)

Description

Verfahren zur Herstellung anorganischer Filme zur Isolation elektrischer Maschinen und Apparate Die Erfindung bezieht sich auf ein Verfahren zur Herstellung anorganischer Filme zur Isolation elektrischer Maschinen und Apparate unter Zuhilfenahme eines anorganischen Gewebebandes, insbesondere eines Glasgewebebandes, und eines Füllmittels. Durch das Füllmittel soll das elektrisch nicht besonders feste Gewebe mehr oder weniger vollkommen dielektrisch dicht gemacht werden. Es ist bereits vorgeschlagen, auf imprägnierte Glasgewebebänder eine Glimmerschicht in Form von Plättchen oder Staub aufzubringen und das Ganze unter Anwendung von Druck und Wärme zu einem Glasgewebeglimmerband zu verkleben. Ferner ist es bekannt, Glasgewebebänder mit Lack oder organischen Stoffen zu imprägnieren. Diese Isolierstoffe halten aber hohen Anforderungen an Hitzebeständigkeit nicht stand, weil bei hohen Temperaturen der organische Anteil oder das Bindemittel verbrennt oder verdampft.Process for the production of inorganic films for electrical insulation Machines and apparatus The invention relates to a method of manufacture inorganic films for insulating electrical machines and apparatus with the aid an inorganic fabric tape, in particular a glass fabric tape, and one Filler. The electrically not particularly strong tissue should be due to the filler be made more or less completely dielectrically tight. It is already suggested a mica layer in the form of platelets or on impregnated glass fabric tapes Dust and the whole thing with the application of pressure and heat to a glass fabric mica tape to glue. It is also known to fabricate glass fabric tapes with lacquer or organic To impregnate fabrics. However, these insulating materials meet high requirements Heat resistance did not stand, because at high temperatures the organic content or the binder burns or evaporates.

Diese Schwierigkeiten werden bei dem oben bezeichneten Verfahren dadurch beseitigt, daB erfindungsgemäß die Lücken des Gewebes durch anorganische Stoffe in sperriger Form, z. B. als Fasern oder Blättchen aus Asbest, Glas, Schlackenwolle oder Glimmer, ausgefüllt werden, deren Teilchengröße nicht oder nur unwesentlich den Lückendurchmesser des Gewebes überschreitet und die ohne Zuhilfenahme eines Bindemittels in den Lükken des Gewebes festhalten.These difficulties are caused by the method referred to above eliminates the fact that, according to the invention, the gaps in the tissue are caused by inorganic substances in bulky form, e.g. B. as fibers or flakes made of asbestos, glass, slag wool or mica, whose particle size is insignificant or not at all the gap diameter of tissue exceeds and which without assistance a binding agent in the gaps of the tissue.

Das Einbringen dieses Füllstoffes kann gemäß einer weiteren Ausgestaltung der Erfindung durch Einwalzen bei gleichzeitiger Erwärmung erfolgen. Die Teilchen schieben sich dann in die Gewebelücken und bleiben haften. Um die Haftung zu verbessern, kann das anorganische Gewebe, gegebenenfalls nach vorheriger Entfettung, auch chemisch aufgerauht werden. So kann man z. B. Glasgewebe zur Beizung mit Zinnchlorür-Lösung od. dgl. aufrauhen.The introduction of this filler can according to a further embodiment of the invention by rolling in with simultaneous heating. The particles Then slide into the tissue gaps and stick. To improve adhesion, the inorganic tissue can also chemically, if necessary after prior degreasing be roughened. So you can z. B. Glass fabric for pickling with tin chloride solution or the like to roughen.

Die Erfindung bietet den Vorteil, daß sich auf einfache Weise eine dielektrisch genügend dichte, hochhitzebeständige Isolation erzielen läßt, die bequem, beispielsweise in Bandform, verarbeitet werden kann. Durch die besondere Form und Größenordnung des Füllmittels am Glasgewebe ist eine ausreichende Haltbarkeit ohne Bindemittel gewährleistet.The invention offers the advantage that a simple way dielectrically sufficiently dense, highly heat-resistant insulation can be achieved, which is convenient, for example in tape form, can be processed. Due to the special shape and The order of magnitude of the filler on the glass fabric is sufficient durability without Binder guaranteed.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung anorganischer Filme zur Isolation elektrischer Maschinen und Apparate unter Zuhilfenahme eines anorganischen Gewebebandes, insbesondere eines Glasgewebebandes, und eines Füllmittels, dadurch gekennzeichnet, daß die Lücken des Gewebes durch anorganische Stoffe in sperriger Form, z. B. als Fasern oder Blättchen aus Asbest, Glas, Schlackenwolle oder Glimmer, ausgefüllt werden, deren Teilchengröße nicht oder nur unwesentlich den Lückendurchmesser des Gewebes überschreitet und die ohne Zuhilfenahme eines Bindemittels in den Lücken des Gewebes festhalten. PATENT CLAIMS: i. Process for the production of inorganic films for the insulation of electrical machines and apparatus with the aid of an inorganic Fabric tape, in particular a glass fabric tape, and a filler, thereby characterized in that the gaps in the tissue are made by inorganic substances in bulkier Shape, e.g. B. as fibers or flakes made of asbestos, glass, slag wool or mica, are filled, the particle size of which does not or only insignificantly the gap diameter of the fabric and which without the aid of a binder in the gaps hold on to the tissue. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Lückenfüllstoff durch Einwalzen in die Gewebelücken gebracht wird. 2. The method according to claim i, characterized in that the gap filler is rolled into the fabric gaps. 3. Verfahren nach Anspruch i und 2, dadurch gekennzeichnet, daß das Gewebe vor der Lückenfüllung entfettet, gegebenenfalls auch chemisch aufgerauht wird. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 401 485, 5oo 694; britische Patentschrift Nr. 482 6o8; USA.-Patentschrift Nr. 2 133 r83. In Betracht gezogene ältere Patente: Deutsches Patent Nr. 727 942.3. Procedure according to claims 1 and 2, characterized in that the fabric is prior to filling the gap degreased, if necessary chemically roughened. Considered publications: German Patent Nos. 401 485, 5oo 694; British Patent No. 482 608; U.S. Patent No. 2,133 r83. Older Patents Considered: German U.S. Patent No. 727,942.
DES16743D 1940-04-04 1940-04-04 Process for the production of inorganic films for the insulation of electrical machines and apparatus Expired DE972678C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES16743D DE972678C (en) 1940-04-04 1940-04-04 Process for the production of inorganic films for the insulation of electrical machines and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES16743D DE972678C (en) 1940-04-04 1940-04-04 Process for the production of inorganic films for the insulation of electrical machines and apparatus

Publications (1)

Publication Number Publication Date
DE972678C true DE972678C (en) 1959-09-10

Family

ID=7475260

Family Applications (1)

Application Number Title Priority Date Filing Date
DES16743D Expired DE972678C (en) 1940-04-04 1940-04-04 Process for the production of inorganic films for the insulation of electrical machines and apparatus

Country Status (1)

Country Link
DE (1) DE972678C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662746A1 (en) * 1994-01-11 1995-07-12 Hitachi, Ltd. Sheet material for electrical insulation, preimpregnated and electrically insulated coil using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE401485C (en) * 1922-09-13 1924-09-05 Aeg Process for the production of micanite articles
GB482608A (en) * 1933-08-22 1938-04-01 Mij Exploitatie Octrooien Nv Commutators for electric machines
US2133183A (en) * 1933-08-22 1938-10-11 Owens Illinois Glass Co Electrical insulation
DE727942C (en) * 1938-10-21 1942-11-17 Aeg Heat-resistant high voltage cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE401485C (en) * 1922-09-13 1924-09-05 Aeg Process for the production of micanite articles
DE500694C (en) * 1922-09-13 1930-06-24 Aeg Process for the production of micanite articles
GB482608A (en) * 1933-08-22 1938-04-01 Mij Exploitatie Octrooien Nv Commutators for electric machines
US2133183A (en) * 1933-08-22 1938-10-11 Owens Illinois Glass Co Electrical insulation
DE727942C (en) * 1938-10-21 1942-11-17 Aeg Heat-resistant high voltage cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662746A1 (en) * 1994-01-11 1995-07-12 Hitachi, Ltd. Sheet material for electrical insulation, preimpregnated and electrically insulated coil using the same
US5691058A (en) * 1994-01-11 1997-11-25 Hitachi, Ltd. Sheet material for electrical insulation, prepreg and electrically insulated coil using the same

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