BE523606A - - Google Patents
Info
- Publication number
- BE523606A BE523606A BE523606DA BE523606A BE 523606 A BE523606 A BE 523606A BE 523606D A BE523606D A BE 523606DA BE 523606 A BE523606 A BE 523606A
- Authority
- BE
- Belgium
- Prior art keywords
- impregnation
- mica
- fibrous
- ultrasound emitter
- dehydration
- Prior art date
Links
- 238000005470 impregnation Methods 0.000 claims description 11
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims 1
- 239000010445 mica Substances 0.000 description 11
- 229910052618 mica group Inorganic materials 0.000 description 11
- 239000002966 varnish Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
-
- 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
- H01B3/008—Other insulating material
-
- 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
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
-
- 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
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/04—Drying; Impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulating Bodies (AREA)
Description
<Desc/Clms Page number 1>
ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI9 Société Anonyme, résidant à BRUXELLES.
PERFECTIONNEMENTS APPORTES A L'IMPREGNATION DES MATERIAUX FIBREUX OU LACUNAIRES.
La présente invention est relative à l'imprégnation de matériaux fibreux ou lacunaire s .
Les matériaux isolants fibreux ou lacunaires sont généralement imprégnés par les vernis et les résines synthétiques pour les besoins de l'élec- trotechnique.
La qualité de l'imprégnation est fonction du plus ou moins grand remplacement de l'air occlus dans le matériau préalablement déshydraté,
La présente invention a pour objet un nouveau procédé de travail continu comprenant les phases de déshydratation,dégazage et imprégnation pro- prement ditequi permette d'obtenir un produit supérieur tout en restant de réalisation simple et économique.
L'invention consiste à soumettre la matière après la phase de déshydratation et encore chaude, à 1* imprégnation par la substance imprégnante sous l'action d'un émetteur d'ultrasons.
De préférence,la fréquence de l'émetteur sera de l'ordre de plu- sieurs centaines de #ilocycles.
A titre d'exemple non limitatif,9 on donnera ci-après un mode de réalisation de l'invention appliquée à l'imprégnation de feuilles de mica ag- ±!amère, avec ou sans liant, à partir de parcelles ou lamelles très petites de mica d'une épaisseur pouvant, être inférieure à 1 micron.
Une bande de ce mica, connu dans le commerce sous le nom de "in- tegrated mica" (mica intégré) passe d'abord par un four de séchage où elle est soumise à une température de 120 C par exemple. Au sortir de ce four de séchagela feuille encore chaude, à 100-110 C par exemples, passe dans un ré- cipient rempli de vernis silicone où elle est mise sous l'influence d'un émet- teur d'ultrasons d'une fréquence de 23 #ilocycles par exemple.
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La température du vernis silicone est de l'ordre de 100 C.
La bande de mica préalablement déshydraté dans le four* de sécha- gese déroule d'une manière continue en passant sous l'action dudit émetteur d'ultrasons. La dégazage s'effectue ainsi très rapidement et le vernis chaud remplit rapidement les interstices existant entre les lamelles de mica, ce qui donne une imprégnation totale.
La feuille imprégnée sort du bain d'imprégnation et est soumise à la phase,,connue en soi, de cuisson du vernis.
La constante diélectrique du mica obtenu est supérieure à 6; elle pourra être de 7,4 par exemple. La rigidité diéle ctrique du mica est d'au moins 68 #V pour une épaisseur de 0,13 mmo le dessin ci-joint représente schématiquement et à titre d'exemple, un appareillage pouvant être utilisé pour la réalisation de l'invention .
Dans le dessin;, 1 représente une feuille, de mica par exemple/ enroulée sur une bobine et avançant d'une manière continue dans le sens de la flèche.
La feuille est immergée dans un récipient 2 contenant un vernis silicone à une température de 100 C.
La feuille est guidée dans ce récipient par des galets 3 et en- toure un émetteur d'ultrasons 4. Par le chiffre 5, on a représenté le gé- nérateur d'ultrasons.
En sortant du récipient 2,la bande passe dans un four de poly- mérisation 6 et en sortant de ce récipient elle s'enroule en 7 sur une bobine Le chiffre 8 représente des racloirs servant à enlever l'excès de vernis, le- quel retourne dans le récipient 2.
L'invention s'applique non seulement au mica, mais à divers autres produits fibreux tels que papiers en feuilles métallisées pour la fabrication de condensateurs, papiers Kraft joints à une feuille d'aluminium pour la fa- brication continue de condensateurs,feuilles de papier collées les unes aux autres et laminées à chaude au coton et à la soie pour la fabrication de ti- rettes, bande setc. à l'asbeste, aux textiles de verre ,à la fabrication des câbles ou conducteurs isolés en général, etc. Plusieurs de ces conducteurs, câbles ou autres objets peuvent être traités simultanément suivant la présente invention.
<Desc / Clms Page number 1>
ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI9 Société Anonyme, residing in BRUSSELS.
IMPROVEMENTS TO IMPREGNATION OF FIBROUS OR LACUNAR MATERIALS.
The present invention relates to the impregnation of fibrous or lacunar materials.
Fibrous or lacunar insulating materials are generally impregnated with varnishes and synthetic resins for electrical engineering purposes.
The quality of the impregnation depends on the greater or lesser replacement of the air trapped in the previously dehydrated material,
The present invention relates to a new continuous working process comprising the dehydration, degassing and impregnation phases proper which makes it possible to obtain a superior product while remaining simple and economical to produce.
The invention consists in subjecting the material after the dehydration phase and still hot, to 1 * impregnation by the impregnating substance under the action of an ultrasound emitter.
Preferably, the frequency of the transmitter will be of the order of several hundred #ilocycles.
By way of non-limiting example, 9 will be given below an embodiment of the invention applied to the impregnation of sheets of bitter ag- ±! Mica, with or without binder, from very small plots or lamellae. of mica of a thickness which may be less than 1 micron.
A strip of this mica, known in the trade under the name of “integrated mica” (integrated mica) first passes through a drying oven where it is subjected to a temperature of 120 ° C. for example. On leaving this drying oven, the still hot sheet, at 100-110 C for example, passes into a container filled with silicone varnish where it is placed under the influence of an ultrasound emitter of a frequency 23 #ilocycles for example.
<Desc / Clms Page number 2>
The temperature of the silicone varnish is around 100 C.
The strip of mica previously dehydrated in the drying oven * unwinds continuously, passing under the action of said ultrasound emitter. The degassing is thus carried out very quickly and the hot varnish quickly fills the interstices existing between the mica lamellae, which gives total impregnation.
The impregnated sheet leaves the impregnation bath and is subjected to the phase, known per se, of baking the varnish.
The dielectric constant of the mica obtained is greater than 6; it could be 7.4 for example. The dielectric rigidity of the mica is at least 68 #V for a thickness of 0.13 mmo. The accompanying drawing represents schematically and by way of example, an apparatus which can be used for the realization of the invention.
In the drawing ;, 1 shows a sheet, for example mica / wound on a spool and advancing continuously in the direction of the arrow.
The sheet is immersed in a container 2 containing a silicone varnish at a temperature of 100 C.
The sheet is guided in this container by rollers 3 and surrounds an ultrasound transmitter 4. The number 5 represents the ultrasound generator.
On leaving container 2, the strip passes through a polymerization oven 6 and on leaving this container it winds up in 7 on a reel. The number 8 represents scrapers used to remove excess varnish, which returns to container 2.
The invention applies not only to mica, but to various other fibrous products such as foil foil papers for the manufacture of capacitors, Kraft papers joined to an aluminum foil for the continuous manufacture of capacitors, sheets of paper. glued to each other and hot rolled with cotton and silk for making spools, tape setc. asbestos, glass textiles, the manufacture of insulated cables or conductors in general, etc. Several of these conductors, cables or other objects can be treated simultaneously according to the present invention.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE523606A true BE523606A (en) |
Family
ID=158494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE523606D BE523606A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE523606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588290A1 (en) * | 1984-05-17 | 1987-04-10 | Kanazawa Masao | ULTRASONIC WASHING MACHINE |
| US6060410A (en) * | 1998-04-22 | 2000-05-09 | Gillberg-Laforce; Gunilla Elsa | Coating of a hydrophobic polymer substrate with a nonstoichiometric polyelectrolyte complex |
-
0
- BE BE523606D patent/BE523606A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588290A1 (en) * | 1984-05-17 | 1987-04-10 | Kanazawa Masao | ULTRASONIC WASHING MACHINE |
| US6060410A (en) * | 1998-04-22 | 2000-05-09 | Gillberg-Laforce; Gunilla Elsa | Coating of a hydrophobic polymer substrate with a nonstoichiometric polyelectrolyte complex |
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