AT210498B - Process for the production of groove insulators from synthetic resin - Google Patents
Process for the production of groove insulators from synthetic resinInfo
- Publication number
- AT210498B AT210498B AT285559A AT285559A AT210498B AT 210498 B AT210498 B AT 210498B AT 285559 A AT285559 A AT 285559A AT 285559 A AT285559 A AT 285559A AT 210498 B AT210498 B AT 210498B
- Authority
- AT
- Austria
- Prior art keywords
- synthetic resin
- production
- groove
- casting
- insulators
- Prior art date
Links
- 239000012212 insulator Substances 0.000 title claims description 9
- 229920003002 synthetic resin Polymers 0.000 title claims description 9
- 239000000057 synthetic resin Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 238000005266 casting Methods 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Insulating Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Rillenisolatoren aus Kunstharz
Rillenisolatoren aus Porzellan werden in der Regel als Rotationskörper ausgebildet, da sich das Aus- gangsprodukt, nämlich die ungebrannte, noch zähe keramische Masse, durch Drehen auf einer Drehscheibe mittels einer Schablone in die gewünschte Form bringen lässt.
Rillenisolatoren aus Kunststoff, die in Giess- oder Pressformen hergestellt werden, sind als rotations- symmetrische Körper ungünstig herzustellen, da hiezu zwei-oder mehrteilige Guss-oder Pressiormen er- forderlich sind, die am Guss-oder Pressstück Nähte zurücklassen. Solche Guss- oder pressnähte müssen bei
Isolatoren besonders sorgfältig entfernt werden, da sie, insbesondere bei Hochspannungen, die Isolations- wirkung wesentlich herabsetzen würden. Dasselbe gilt für Rillenisolatoren mit schraubenlinienförmigem
Verlauf der Rillen.
Rillenisolatoren aus Porzellan mit schraubenförmigem Verlauf der Rillen sind an sich bekannt, jedoch mit den üblichen Herstellungsmethoden für keramische Körper schwer herzustellen.
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Rillenisolatoren, deren Rillen einen schraubenlinienförmigen Verlauf aufweisen, aus Kunstharz, insbesondere giessbarem Kunstharz. Die oben erwähnten Nachteile werden erfindungsgemäss dadurch vermieden, dass das Kunstharz in eine ungeteilte Guss- oder Pressform eingebracht wird und nach Erhärtung durch Ausschrauben aus der Guss- oder Pressform entfernt wird.
Bei dem nach dem erfindungsgemässen Verfahren hergestellten Rillenisolator aus Kunstharz erübrigt sich eine nachträgliche Bearbeitung, da er nahtlos hergestellt ist. Bei Giessverfahren ergibt sich der wei- tere Vorteil, dass beim Guss durch die schraubenlinienförmige Ausbildung der Giessform das Entweichen der Luft über dem steigenden Spiegel des flüssigen Harzes wesentlich erleichtert wird und es daher zu kei- ner Bildung von Luftblasen zwischen Gussform und Giessharz kommt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of groove insulators from synthetic resin
Groove insulators made of porcelain are usually designed as rotating bodies, since the starting product, namely the unfired, still tough ceramic mass, can be brought into the desired shape by turning on a turntable using a template.
Groove insulators made of plastic, which are produced in casting or compression molds, are unfavorable to produce as rotationally symmetrical bodies, since two-part or multi-part cast or compression molds are required that leave seams on the cast or pressed piece. Such cast or press seams must be
Isolators must be removed with particular care, as they would significantly reduce the insulating effect, especially with high voltages. The same applies to groove insulators with a helical shape
Course of the grooves.
Groove insulators made of porcelain with a helical course of the grooves are known per se, but are difficult to manufacture using the usual manufacturing methods for ceramic bodies.
The subject matter of the invention is a method for producing groove insulators, the grooves of which have a helical course, made of synthetic resin, in particular castable synthetic resin. The above-mentioned disadvantages are avoided according to the invention in that the synthetic resin is introduced into an undivided casting or compression mold and, after hardening, is removed from the casting or compression mold by unscrewing it.
In the case of the synthetic resin groove insulator produced by the method according to the invention, subsequent processing is unnecessary, since it is produced seamlessly. Casting processes have the further advantage that the helical design of the casting mold makes it much easier for the air to escape above the rising level of the liquid resin, so that no air bubbles form between the casting mold and the casting resin.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT285559A AT210498B (en) | 1959-04-15 | 1959-04-15 | Process for the production of groove insulators from synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT285559A AT210498B (en) | 1959-04-15 | 1959-04-15 | Process for the production of groove insulators from synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT210498B true AT210498B (en) | 1960-08-10 |
Family
ID=3541362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT285559A AT210498B (en) | 1959-04-15 | 1959-04-15 | Process for the production of groove insulators from synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT210498B (en) |
-
1959
- 1959-04-15 AT AT285559A patent/AT210498B/en active
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