AT127723B - Sealing compound for electrical apparatus, in particular for pupin coil boxes. - Google Patents
Sealing compound for electrical apparatus, in particular for pupin coil boxes.Info
- Publication number
- AT127723B AT127723B AT127723DA AT127723B AT 127723 B AT127723 B AT 127723B AT 127723D A AT127723D A AT 127723DA AT 127723 B AT127723 B AT 127723B
- Authority
- AT
- Austria
- Prior art keywords
- electrical apparatus
- sealing compound
- coil boxes
- air
- pupin coil
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Insulating Of Coils (AREA)
Description
<Desc/Clms Page number 1>
Ausgussmasse für elektrische Apparate, insbesondere für Pupinspulenkästen.
Als Ausgnssmassen für elektrische Apparate verwendete man bisher stets kompakte Massen, die man in der Weise in die Apparate einfüllte, dass in ihnen möglichst keinerlei Lufteinschlüsse verblieben. Abgesehen davon, dass durch solche kompakte Massen das Gewicht der elektrischen Apparate in starkem Masse erhöht wird, werden solche Massen bei Temperaturschwankungen auch leicht rissig, so dass durch die sich in ihnen bildenden Risse Feuchtigkeit eindringen kann, oder es besteht die Gefahr, dass die Apparategehäuse infolge der Ausdehnung der Masse bei erhöhten Temperaturen auseinandergesprengt oder deformiert werden.
Um diese Nachteile zu vermeiden, wird gemäss der Erfindung vorgeschlagen, in elektrische Apparate, insbesondere in Pupinspulenkästen Ausgussmassen mit fein verteilten Luft-oder Gaseinschlüssen einzufüllen. Die Luft-oder Gaseinschlüsse können z. B. durch Schlagen, durch Lufteinpressen mittels bewegter oder rotierender Düsen erzeugt werden oder aber auch dadurch, dass man die flüssige Masse umrührt und in sie mit Hilfe von feststehenden Düsen Luft oder Gas einführt.
Die Verwendung solcher Massen hat den Vorteil, dass sie eine wesentlich geringere Wärmeleitfähigkeit als kompakte Massen ohne Lufteinschlüsse besitzen, ferner, dass sie eine grosse elastische Kompressibilität haben und nicht dazu neigen, rissig, brüchig oder spröde zu werden, u. zw. auch dann nicht, wenn das kompakte Material bei den gleichen Temperaturen bereits spröde ist. Ein weiterer sehr wesentlicher Vorteil der Ausgussrnassen mil Gaseinschlüssen
EMI1.1
ihrem Gebrauch ganz beträchtliche Mengen an Material gespart werden.
PATENT-ANSPRÜCHE :
1. Ausgussmassen für elektrische Apparate, insbesondere für Pupinspulenkästen, dadurch gekennzeichnet, dass sie Luft. und Gaseinschlüsse in fein verteiltem Zustande besitzen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Sealing compound for electrical apparatus, in particular for pupin coil boxes.
Up to now, compact masses have always been used as starting materials for electrical devices, which were poured into the devices in such a way that as little air as possible remained in them. Apart from the fact that such compact masses greatly increase the weight of the electrical apparatus, such masses are also easily cracked in the event of temperature fluctuations, so that moisture can penetrate through the cracks that form in them, or there is a risk of the apparatus housing be blasted apart or deformed as a result of the expansion of the mass at elevated temperatures.
In order to avoid these disadvantages, it is proposed according to the invention to pour pouring compounds with finely divided air or gas inclusions into electrical apparatus, in particular into pupin coil boxes. The air or gas inclusions can, for. B. by beating, by forcing air by means of moving or rotating nozzles or by stirring the liquid mass and introducing air or gas into it with the help of fixed nozzles.
The use of such masses has the advantage that they have a significantly lower thermal conductivity than compact masses without air inclusions, further that they have a high elastic compressibility and do not tend to become cracked, brittle or brittle, and the like. not even if the compact material is already brittle at the same temperatures. Another very important advantage of the pouring liquid with gas inclusions
EMI1.1
their use saves considerable amounts of material.
PATENT CLAIMS:
1. Sealing compounds for electrical apparatus, especially for Pupin coil boxes, characterized in that they contain air. and have gas inclusions in a finely divided state.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE127723X | 1930-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT127723B true AT127723B (en) | 1932-04-11 |
Family
ID=5662192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT127723D AT127723B (en) | 1930-03-13 | 1931-03-04 | Sealing compound for electrical apparatus, in particular for pupin coil boxes. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT127723B (en) |
-
1931
- 1931-03-04 AT AT127723D patent/AT127723B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT127723B (en) | Sealing compound for electrical apparatus, in particular for pupin coil boxes. | |
DE69033101T2 (en) | Material for thermal and electrical insulation with selective absorption capacity for the spectrum of electromagnetic radiation and for vibrations, process for its production and its application | |
AT127376B (en) | Device for detecting leakage of a container containing a liquid electrical conductor. | |
AT141763B (en) | Cooling device for food u. like | |
DE588081C (en) | Transformer with a sheet metal core | |
DE595014C (en) | Process for the production of phenol-aldehyde resins which harden faster in the cold | |
DE623227C (en) | Absorption tower for the production of oleum | |
DE752206C (en) | Device for heating concentrated nitric acid | |
DE3503276A1 (en) | REINFORCEMENT ELEMENTS PROTECTED BY CORROSION AGAINST CORROSION OR IN PORO CONCRETE | |
DE340445C (en) | Frames and housings that serve as supports for the effective iron and for the windings of electrical alternating current generators and motors | |
DE2014706A1 (en) | Method and product for isolating packaging used for wrapping and transporting radioactive materials and the like | |
AT215531B (en) | AC machine | |
DE473152C (en) | Compensating device for fluid circulation heaters for indirect heating of steam generators and steam storage tanks | |
DE964884C (en) | Process for the insulation of encapsulated electrical devices, such as transformers and reactors, with a mineral insulating material | |
DE1034789B (en) | Arrangement for inductive heating of vessels, pipes, etc. like | |
DE2321631A1 (en) | FIRE-RESISTANT INSULATING MATERIAL | |
DE746317C (en) | Insulation structure for electrical devices and apparatus, such as cables, terminations, transformers, current converters, voltage converters and the like. like | |
AT123846B (en) | Process for the production of cast objects from igneous rocks or their mixtures. | |
DE738079C (en) | capacitor | |
DE974229C (en) | Dry rectifier encapsulated with cast resin, especially selenium rectifier | |
AT70596B (en) | Method and device for the simultaneous scraping and crushing of substances, in particular calcium nitrate and the like, which have solidified or dried on drums. | |
DE536360C (en) | Production of lining plates or stones from silicon alloy putty | |
DE497139C (en) | Process for the production of a magnetic body which is composed of isolated individual parts of small thickness of a highly permeable iron-nickel alloy | |
DE369489C (en) | Process for the production of objects of all kinds with the help of a stabilizing filling core | |
DE544786C (en) | Jacket for high frequency ovens of large dimensions |