DE806884C - Method and apparatus for improving the surface of drawn glass - Google Patents
Method and apparatus for improving the surface of drawn glassInfo
- Publication number
- DE806884C DE806884C DEU192A DEU0000192A DE806884C DE 806884 C DE806884 C DE 806884C DE U192 A DEU192 A DE U192A DE U0000192 A DEU0000192 A DE U0000192A DE 806884 C DE806884 C DE 806884C
- Authority
- DE
- Germany
- Prior art keywords
- glass
- screens
- pane
- improving
- air currents
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/02—Drawing glass sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
Die vorliegende Erfindung betrifft die Verbesserung der derzeitigen Verfahren zum Ausziehen von Glas zu Scheiben, um Glasscheiben mit vollständig ebenen Oberflächen zu erhalten.The present invention is directed to improving the current one Method of pulling glass to panes in order to make glass panes with completely flat To preserve surfaces.
'fall weiß. daß die nach den verschiedenen Ausziehverfahren erhaltenen Glasscheiben nicht ganz eben sind, sondern Unterschiede in der Dicke zeigen, welche die in der Durchsicht oder in Reflektion betrachteten Bilder verzerren. Die Unterschiede nennt man mit handwerksmäßigem Ausdruck: Gepräge, Wellung, diagonale Verdrehung usw.'case white. that obtained by the various exhaust processes Glass panes are not completely flat, but show differences in thickness which one Distort the images viewed through transparency or in reflection. The differences is called with an artisan expression: embossing, corrugation, diagonal twisting etc.
Die vorliegende Erfindung beruht auf der Feststellung, daß diese Oberflächenverzerrungen der Scheibe während der Ausziehung teilweise auf die unregelmäßigen Luftströme zurückzuführen sind, welche sich in den Ausziehschächten in der Berührung finit der entstehenden Scheibe ausbilden tilid die verschiedenen Teile ungleichmäßig abkühlen.The present invention is based on the discovery that these surface distortions due to the irregular air currents during the pull-out of the disc are, which are in the pull-out shafts in the finite contact of the emerging Form disc tilid the different parts cool unevenly.
Der Ausziehschacht umfaßt Wärmequellen von verschiedener Temperatur, welche in der umgebenden Luft beträchtliche thermische Ströme hervorrufen.The pull-out shaft contains heat sources of different temperatures, which cause considerable thermal currents in the surrounding air.
'fall hat erkannt, daß man beim Bremsen dieser Ströme dazu gelangt, viel ebenere Oberflächen zu erhalten und so die Qualität der erhaltenen Glasscheibenoberfläche beträchtlich zu verbessern.case has recognized that braking these currents leads to to obtain much more even surfaces and thus the quality of the glass pane surface obtained to improve considerably.
Zu diesem Ziel besteht das Verfahren gemäß der vorliegenden Erfindung darin, auf den Kühlrohren oder in ihrer Nähe Schirme anzuordnen, welche die aufsteigenden Luftströme abbremsen.This is the aim of the method according to the present invention in arranging screens on the cooling tubes or in their vicinity, which the ascending Decelerate air flows.
Nachstehend ein Ausführungsbeispiel für das \-erfahren: Die Fig. i ist ein schematischer Schnitt durch eine Anlage zum Ausziehen von Glasscheiben nach dein Verfahren Fourcault, in welcher a die geschniolzene Glasmasse bedeutet, b die Abgabevorrichtung, C die Abkühlvorrichtung mit Wasserumlauf,welches die Scheibe im Augenblick ihrer Bildung zum Erstarren bringt, und d die Schirme, welche dazu dienen, die vertikalen Luftströme in der Nähe der Scheibe zu bremsen.Below is an exemplary embodiment for the experience: Fig. I is a schematic section through a system for pulling glass panes according to the Fourcault method, in which a denotes the melted glass mass, b denotes the Dispensing device, C the cooling device with water circulation, which the disc freezes at the moment of their formation, and d the screens which do so serve to slow down the vertical air currents near the disc.
Bei der in Fig. i wiedergegebenen Ausführungsfo>nn des Verfahren; sind die Schirme horizontal angebracht und an den Abkühlvorrichtungen befestigt. , Es sind vier an der Zahl auf )edel Seite der Scheibe so angeordnet, daß sie ein gemeinsames I.@illvrintli für die absteigende Luft bilden. 'Man kann die Wirkung des gemeinsamen Labyrinths erhöhen, indem man an dem Ende der Schirme im Vertikalschnitt eine Art Kamm (Fig. 2) anbringt. ' Die Schirme können aus nicht owdierl)arem Stahl hergestellt sein, aus 'Metall oder einer Legierung finit schwachem Ausdehnungskoeffizienten, um Deformationen zu vermeiden.In the embodiment of the method shown in FIG. the screens are mounted horizontally and attached to the cooling devices. , There are four in number on) the noble side of the disk so that they have a form common I. @ illvrintli for the descending air. 'You can see the effect Increase the common maze by looking at the end of the umbrellas in vertical section attaches a kind of comb (Fig. 2). The screens can be made of non-owdierl) arem steel be made of 'metal or an alloy with a finite low coefficient of expansion, to avoid deformation.
Sie können auch aus jedem anderen unter den Bedingungen, die in dein Ausziehschacht vorliegen. widerstandsfähigen Material hergestellt sein.You can also choose from each other under the terms that are in your Pull-out shaft available. be made of resistant material.
Die Schirme können auch durch ein von dem Kühlrohr unabhängiges Element unterstützt werden, so daß man unabhängig die Entfernung der Schirme und der Kühlvorrichttitigen voti der Scheibe regulieren kann.The screens can also be made by an element that is independent of the cooling tube be supported so that you can independently remove the screens and cooling devices can regulate voti of the disc.
Es ist offenbar, daß die vorliegende Vorrichtung nicht nur bei dem Verfahren Fourcault anwendbar ist, sondern bei jedem anderen Ausziehverfahren für Glasscheiben, bei welchem die in Bildung begriffene Scheibe mit der Luft in Berührung ist.It is apparent that the present device is not only in the Fourcault method is applicable, but with any other extraction method for Panes of glass in which the pane that is being formed is in contact with the air is.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE806884X | 1939-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE806884C true DE806884C (en) | 1951-06-21 |
Family
ID=3881061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEU192A Expired DE806884C (en) | 1939-08-22 | 1950-04-18 | Method and apparatus for improving the surface of drawn glass |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE806884C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1001459B (en) * | 1952-04-08 | 1957-01-24 | Compagnies Reunies Des Glaces | Method and apparatus for rapidly relieving tension in a continuous glass ribbon |
DE1019058B (en) * | 1956-02-07 | 1957-11-07 | Hermann Huber | Device for pulling glass bands from a glass melt |
DE1144884B (en) * | 1953-11-13 | 1963-03-07 | Saint Gobain | Device for improving the surface of a glass ribbon when it is excavated from the melt |
US3634058A (en) * | 1970-01-16 | 1972-01-11 | Ppg Industries Inc | Cooler for vertical glass sheet drawing machine |
-
1950
- 1950-04-18 DE DEU192A patent/DE806884C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1001459B (en) * | 1952-04-08 | 1957-01-24 | Compagnies Reunies Des Glaces | Method and apparatus for rapidly relieving tension in a continuous glass ribbon |
DE1144884B (en) * | 1953-11-13 | 1963-03-07 | Saint Gobain | Device for improving the surface of a glass ribbon when it is excavated from the melt |
DE1019058B (en) * | 1956-02-07 | 1957-11-07 | Hermann Huber | Device for pulling glass bands from a glass melt |
US3634058A (en) * | 1970-01-16 | 1972-01-11 | Ppg Industries Inc | Cooler for vertical glass sheet drawing machine |
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