DE2223253C3 - Process for the gas inclusion-free production of cast resin moldings under vacuum - Google Patents
Process for the gas inclusion-free production of cast resin moldings under vacuumInfo
- Publication number
- DE2223253C3 DE2223253C3 DE19722223253 DE2223253A DE2223253C3 DE 2223253 C3 DE2223253 C3 DE 2223253C3 DE 19722223253 DE19722223253 DE 19722223253 DE 2223253 A DE2223253 A DE 2223253A DE 2223253 C3 DE2223253 C3 DE 2223253C3
- Authority
- DE
- Germany
- Prior art keywords
- under vacuum
- cast resin
- resin moldings
- free production
- gas inclusion
- 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
Links
- 239000011347 resin Substances 0.000 title claims description 10
- 229920005989 resin Polymers 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims 2
- 238000005266 casting Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000007872 degassing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Description
Die Erfindung betrifft ein Verfahren zur gaseinschlußfreien Herstellung von Gießharzformlingen unter Vakuum.The invention relates to a method for the gas inclusion-free production of molded resin moldings under Vacuum.
Bei der Herstellung von Gießharzformlingen, welche elektrische Bauteile enthalten, ist es zur Erhaltung der dem Gießharz eigenen hohen Isolatiönsfähigkeit unbedingt erforderlich, Luft- bzw. Gaseinschlüsse beim Vergießen zu vermeiden. Ein diesem Zweck dienendes bekanntes Verfahren sieht vor, das flüssige Harz unter Vakuum zu vergießen DT-GM 17 90 611. Die in und anIn the production of cast resin moldings which contain electrical components, it is necessary to maintain the the casting resin's inherent high insulation capacity is essential, air or gas inclusions in the Avoid shedding. A known method serving this purpose provides, the liquid resin under Vacuum shed DT-GM 17 90 611. The in and on
dem zu vergießenden elektrischen Bauteil, dem Füllstoff und in der Form vorhandene Gasmenge wird mit kleiner werdendem Vakuumdruck ebenfalls so verkleinert, daß man einen für viele Zwecke brauchbaren Gießharzformling erhält, in dem nur noch winzige Gaseinschlüsse vorhanden sind. Eine vollständige Entgasung durch weitere Absenkung des Drucks im Vakuum ist nur unter erheblichem, für industrielle Fertigung nicht vertretbarem apparativem Aufwand möglich.the electrical component to be potted, the filler and the amount of gas present in the mold becomes smaller The vacuum pressure is also reduced so that a cast resin molding can be used for many purposes in which only tiny gas inclusions are still present. Complete degassing through Further lowering of the pressure in the vacuum is only possible under considerable circumstances which are not justifiable for industrial production possible outlay in terms of equipment.
Es besteht die Aufgabe, ein Verfahren zu entwickeln, das zum Entfernen von Restgaseinschlüssen bei der industriellen Serienfertigung von gaseinschlußfreiea Gießharzformlingen geeignet ist.The object is to develop a method for removing residual gas inclusions in the industrial series production of gas inclusion-free a Cast resin moldings is suitable.
Die Lösung der oben gestellten Aufgabe besteht darin, daß der Gießharzmasse und/oder einem in dieser enthaltenen körnigen Füllstoff Silikagel oder ein als Molekularsieb wirkender Stoff zugesetzt wird.The solution to the above problem is that the casting resin compound and / or one in this granular filler contained in silica gel or a substance acting as a molecular sieve is added.
Damit wird die Lösbarkeit, insbesondere beim Obergang zur und in der festen Phase, verbessert Es ist so möglich, die bei der Vakuumbehandlung in vertretbarem Rahmen noch verbleibenden winzigen Restvolumina eines Gases vollständig zum Verschwinden zu bringen.This improves the solubility, especially during the transition to and in the solid phase as possible, the tiny ones that remain within an acceptable range during the vacuum treatment To make residual volumes of a gas disappear completely.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722223253 DE2223253C3 (en) | 1972-05-12 | Process for the gas inclusion-free production of cast resin moldings under vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722223253 DE2223253C3 (en) | 1972-05-12 | Process for the gas inclusion-free production of cast resin moldings under vacuum |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2223253A1 DE2223253A1 (en) | 1973-11-22 |
| DE2223253B2 DE2223253B2 (en) | 1977-06-30 |
| DE2223253C3 true DE2223253C3 (en) | 1978-02-16 |
Family
ID=
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