AT143624B - Process for the production of shaped pieces which contain waste or powder of mica mixed with glass flux. - Google Patents
Process for the production of shaped pieces which contain waste or powder of mica mixed with glass flux.Info
- Publication number
- AT143624B AT143624B AT143624DA AT143624B AT 143624 B AT143624 B AT 143624B AT 143624D A AT143624D A AT 143624DA AT 143624 B AT143624 B AT 143624B
- Authority
- AT
- Austria
- Prior art keywords
- mica
- powder
- production
- shaped pieces
- glass
- Prior art date
Links
- 239000010445 mica Substances 0.000 title claims description 11
- 229910052618 mica group Inorganic materials 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 3
- 239000011521 glass Substances 0.000 title description 11
- 230000004907 flux Effects 0.000 title description 7
- 239000002699 waste material Substances 0.000 title description 5
- 239000000843 powder Substances 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 229910001610 cryolite Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 7
- 229910052627 muscovite Inorganic materials 0.000 description 4
- 229910052626 biotite Inorganic materials 0.000 description 3
- 229910052628 phlogopite Inorganic materials 0.000 description 3
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241001676573 Minium Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
Landscapes
- Glass Compositions (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
Es ist bekannt, hitzebeständige und elektrisch isolierende Folien und Platten herzustellen, indem man Glimmerstaub oder-abfall mittels keramischer Massen, welche zwischen 600 und 9000 schmelzen, bindet. Es ist ferner bekannt, glasartige Formstücke durch Zusammenschmelzen von Glimmer mit leichtschmelzenden Glasflüssen herzustellen.
Die auflösende Wirkung dieser Glasflüsse wirkt sieh jedoch lediglich auf Kaliglimmer, wie Muscovit, aus, da die Magnesiaglimmer, wie Phlogopit und Biotit, bei Temperaturen, bei denen die Kaliglimmer sich im Glas vollständig auflösen und verschwinden, durch Gläser und Glasflüsse praktisch nicht angegriffen werden.
EMI1.2
durchsichtigkeit und ihrer unregelmässigen Spaltbarkeit recht beschränkt ist, zeigen in Mischung mit den verschiedenen Glassorten nicht nur grössere Widerstandsfähigkeit gegen den Angriff geschmolzenen Glases, sondern auch eine bemerkenswerte Beständigkeit bei Temperaturen bis zu 900 , während der Muscovit bei diesen Temperaturen sein gesamtes Konstitutionswasser verliert. Infolgedessen bewahren Mischungen von Magnesiaglimmer mit geschmolzenem Glas vollkommen ihre mechanischen und elektrischen Eigenschaften.
Die Erfindung macht sich diese Vorteile zunutze. Sie besteht darin, mit glasartigen Schmelzflüssen Abfälle oder Pulver von Mangesiaglimmer zu mischen, die, wie Phlogopit oder Biotit, von diesen Schmelzflüssen praktisch nicht angegriffen werden, diese Mischung auf eine zur Erweichung der Schmelzflüsse hinreichende Temperatur zu erhitzen und die derart erweichte Mischung in metallene, auf zirka 400 erhitzte Formen zu pressen.
EMI1.3
plizierter Gestalt, die immer gleichmässig ausfallen und die eine viel grössere mechanische Festigkeit und eine bedeutend höhere Hitzebeständigkeit aufweisen als die bisher mittels Glimmerpulver oder - abfall erzeugten Produkte.
EMI1.4
Glasflüsse zuzumischen, die gleichzeitig Kieselsäure, Kryolith, Borsäure und Bleisalze enthalten.
Diese Mischungen ergeben Erzeugnisse von hohem dielektrischem Widerstand, welche gegenüber Wasser und Atmosphärilien sehr beständig sind.
Man kann z. B. 10 Teile Kryolith mit der gleichen Menge Kieselsäure vermengen und 30 Teile Minium, 15 Teile Feldspat und 35 Teile Borsäure zusetzen, wodurch man eine Masse erhält, die bei 4200 erweicht.
Setzt man diesem Gemenge 150 Teile Magnesiaglimmer zu, erhitzt dann, presst und lässt erkalten, so erhält man ein Erzeugnis, das nach 72stündigem Liegen im Wasser Spannungen in der Grössenordnung von 38.000 Volt auf einem Querschnitt von 72 mm2 und einem Abstand von 90 mm, gemessen zwischen den Befestigungsringen, widersteht.
PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung von Formstücken, welche Abfälle oder Pulver von Glimmer, gemischt mit Glasflüssen, enthalten, dadurch gekennzeichnet, dass man Magnesiaglimmer, wie Phlogopit und Biotit, verwendet, die von den Glassätzen praktisch nicht angegriffen werden, dass man das Gemenge genügend hoch erhitzt, um den Glasfluss zumErweichen zu bringen, und dass man schliesslich das erweichte Gemenge in auf ungefähr 4000 C erwärmten Formen presst.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
It is known to produce heat-resistant and electrically insulating foils and plates by binding mica dust or waste by means of ceramic masses which melt between 600 and 9000. It is also known to produce glass-like shaped pieces by melting together mica with easily melting glass fluxes.
The dissolving effect of these glass flows only affects potash mica, such as muscovite, since magnesia mica, such as phlogopite and biotite, are practically not attacked by glasses and glass flows at temperatures at which the potash mica dissolve completely and disappear in the glass.
EMI1.2
transparency and its irregular cleavage is quite limited, when mixed with the various types of glass, they show not only greater resistance to attack by molten glass, but also a remarkable resistance at temperatures of up to 900, while muscovite loses all of its constitutional water at these temperatures. As a result, mixtures of magnesia mica with molten glass fully retain their mechanical and electrical properties.
The invention makes use of these advantages. It consists of mixing waste or powder of manganese mica with vitreous melt fluxes, which, like phlogopite or biotite, are practically not attacked by these melt fluxes, heating this mixture to a temperature sufficient to soften the melt fluxes and converting the softened mixture into metallic, to press on around 400 heated molds.
EMI1.3
Plied shape, which always turn out to be uniform and which have a much greater mechanical strength and a significantly higher heat resistance than the products previously produced using mica powder or waste.
EMI1.4
To mix in glass fluxes which contain silica, cryolite, boric acid and lead salts at the same time.
These mixtures result in products of high dielectric resistance which are very resistant to water and atmospheric agents.
You can z. B. Mix 10 parts of cryolite with the same amount of silica and add 30 parts of minium, 15 parts of feldspar and 35 parts of boric acid, giving a mass that softens at 4200.
If 150 parts of magnesia mica are added to this mixture, then heated, pressed and allowed to cool, a product is obtained which, after 72 hours in the water, measured voltages of the order of 38,000 volts on a cross section of 72 mm2 and a distance of 90 mm between the fastening rings.
PATENT CLAIMS:
1. A process for the production of shaped pieces which contain waste or powder of mica mixed with glass fluxes, characterized in that magnesia mica, such as phlogopite and biotite, is used, which are practically not attacked by the glass sets, that the mixture is sufficiently high heated in order to soften the glass flow, and that finally the softened mixture is pressed into molds heated to about 4000 C.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR143624X | 1933-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT143624B true AT143624B (en) | 1935-11-25 |
Family
ID=8874923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT143624D AT143624B (en) | 1933-04-11 | 1934-02-24 | Process for the production of shaped pieces which contain waste or powder of mica mixed with glass flux. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT143624B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE765031C (en) * | 1938-07-09 | 1954-05-10 | Aeg | Electrical insulating material made of mica and glass |
| DE1225092B (en) * | 1961-03-16 | 1966-09-15 | Mycalex & T I M Ltd | Process for the production of a mica-containing insulating material |
| DE1241508B (en) * | 1954-04-06 | 1967-06-01 | Mycalex And T I M Ltd | Process for the production of electrical insulating material |
-
1934
- 1934-02-24 AT AT143624D patent/AT143624B/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE765031C (en) * | 1938-07-09 | 1954-05-10 | Aeg | Electrical insulating material made of mica and glass |
| DE1241508B (en) * | 1954-04-06 | 1967-06-01 | Mycalex And T I M Ltd | Process for the production of electrical insulating material |
| DE1225092B (en) * | 1961-03-16 | 1966-09-15 | Mycalex & T I M Ltd | Process for the production of a mica-containing insulating material |
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