DE739450C - Process for producing very thin glass films - Google Patents

Process for producing very thin glass films

Info

Publication number
DE739450C
DE739450C DES146601D DES0146601D DE739450C DE 739450 C DE739450 C DE 739450C DE S146601 D DES146601 D DE S146601D DE S0146601 D DES0146601 D DE S0146601D DE 739450 C DE739450 C DE 739450C
Authority
DE
Germany
Prior art keywords
producing
thin glass
glass films
ultrasound
blown out
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
Application number
DES146601D
Other languages
German (de)
Inventor
Dipl-Ing Wilhelm Gebhardt
Karl Heinz Gnade
Georg Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES146601D priority Critical patent/DE739450C/en
Application granted granted Critical
Publication of DE739450C publication Critical patent/DE739450C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/04Re-forming tubes or rods
    • C03B23/07Re-forming tubes or rods by blowing, e.g. for making electric bulbs
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/04Re-forming tubes or rods
    • C03B23/09Reshaping the ends, e.g. as grooves, threads or mouths
    • C03B23/097Reshaping the ends, e.g. as grooves, threads or mouths by blowing
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/005Manufacture of flakes
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00Blowing glass; Production of hollow glass articles
    • C03B9/10Blowing glass cylinders for sheet manufacture
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00Blowing glass; Production of hollow glass articles
    • C03B9/30Details of blowing glass; Use of materials for the moulds
    • C03B9/36Blow heads; Supplying, ejecting or controlling the air
    • C03B9/3663Details thereof relating to internal blowing of the hollow glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Compositions (AREA)

Description

Verfahren zum Erzeugen sehr dünner Glasfolien Es ist bekannt, dünne Glasfolien durch Blasen herzustellen. Die Folien fallen aber ziemlich ungleichmäßig aus, auch sind sie oft mehrfach 'gekrümmt, so daß sie sich nicht flach legen lassen. Das letztere ist darauf zurückzuführen, daß sich die geblasenen Ballone oft schlan.Clenartig krümmen.Method for producing very thin glass films It is known that thin Manufacture glass foils by blowing. However, the foils fall quite unevenly off, and they are often curved several times so that they cannot be laid flat. The latter is due to the fact that the blown balloons are often slender bend.

Die Erfindung hat die Aufgabe, die Herstellung solcher Fol:.en zu erleichtern und insbesondere die Herstellung gleichmäßig dün-Z, t' zi ner Folien zu ermöglichen.The invention has the task of producing such fol: .en to facilitate and in particular the production of evenly thin-Z, t'zi ner foils to enable.

Die Erfindung kann auch dazu angewendet werden, besonders dünne Folien, beispielsweise Folien mit einer Dicke von weniger als 5 li., zu erhalten. Diese Folien haben eine höhere spezifische Festigkeit und sind viel biegsamer als dickere Folien. Auch kann die Erfindung an gewendet werden, um größere Ballone mit weniger stark gekrümmten Folienflächen zu erhalten.The invention can also be used to obtain particularly thin films, for example films with a thickness of less than 5 li. These foils have a higher specific strength and are much more flexible than thicker foils. The invention can also be used to obtain larger balloons with less strongly curved film surfaces.

Erfindungsgemäß wird der erhitzte Glaskörper während des Ausblasens der Einwirkung von Ultraschall ausgesetzt.According to the invention, the heated glass body becomes during the blowing out exposed to the action of ultrasound.

Die Erfindung soll an Hand der Zeichnung näher erläutert werden. Das an einem Ende zugeschmolzene und erhitzte Glasrohr i, das an eine Druck-quelle- angeschlossen ist, wird zu einem Ballon 2 ausgeblasen. Der Gasinhalt des Ballons w.,rd beim Ausblasen beispielsweise durch eine nach dem Prinzip der Ma-"netostrik a -tion arbeitende Ultraschallquelle 3 in hochfrequente Schallschwingungen versetzt, deren Amplitude und Fre4uenz der jeweiligen Glassorte angepaßt wird. Außerdem kann auch das Glasrohr i während des Ausblasens durch eine Ultraschallquelle in Schwingungen versetzt werden, indem man es beispielsweise mit einer geeigneten übertragungsvorrichtung4 für den Ultraschall verbindet. Unter Umständen empfiehlt es sich, gleichzeitig mehrere Ultraschallquellen auf den auszublasenden Glaskörper oder auf den Gasraum in dem Glaskörper während des Ausblasens in verschiedenen Richtungen mit verschiedener Phase oder Frequenz einwirken zu lassen.The invention will be explained in more detail with reference to the drawing. The glass tube i, melted shut at one end and heated, which is connected to a pressure source, is blown out to form a balloon 2. The gas content of the balloon w., Rd when blown out, for example, by an ultrasonic source 3 operating on the principle of magnetostrics, is set into high-frequency sound oscillations, the amplitude and frequency of which is adapted to the respective type of glass Blowing out can be made to vibrate by an ultrasound source, for example by connecting it to a suitable transmission device4 for the ultrasound. It may be advisable to simultaneously apply several ultrasound sources to the glass body to be blown out or to the gas space in the glass body while blowing in different directions in different directions Let phase or frequency act.

Die Erfindung bietet den Vorteil, daß die Ballone gleichmäßiger, dünner und größer ausgeblasen werden können, namentlich wenn man in einem beheizten Raum oder mit erhitztem Gas bläst. Auch kann rascher als sonst geblasen werden, weil Ultraschall die Cberführung der Glasschmelze in die Folienform erleichtert und beschleunigt.The invention offers the advantage that the balloons are more uniform, thinner and can be blown out larger, especially if you are in a heated room or blows with heated gas. It is also possible to blow faster than usual because Ultrasound facilitates and accelerates the transfer of the molten glass into the film form.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zum Erzeugen sehr dünner Glasfolien durch Blasen von Ballonen, dadurch gekennzeichnet, daß der erhitzte Glaskörper während des Ausblasens der Einwirkung von Ultraschall ausgesetzt wird. PATENT CLAIMS: i. Method for producing very thin glass films by blowing balloons, characterized in that the heated glass body is exposed to the action of ultrasound while it is being blown out. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Gasinhalt des Ballons in Ultraschallschwingungen versetzt wird. 3. Verfahren nach Anspruch i und 2, dadurch gekennzeichnet, daß mehrere Ultraschallquellen verschiedener Phasen und Frequenz verwendet werden. 2. The method according to claim i, characterized in that the gas content of the balloon is set in ultrasonic vibrations. 3. The method according to claim i and 2, characterized in that several ultrasonic sources of different phases and frequencies are used. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren keine Druckschriften in Betracht gezogen worden. Z> In order to differentiate the subject of the application from the state of the art, no publications were taken into account in the granting procedure. Z>
DES146601D 1941-08-15 1941-08-15 Process for producing very thin glass films Expired DE739450C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES146601D DE739450C (en) 1941-08-15 1941-08-15 Process for producing very thin glass films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES146601D DE739450C (en) 1941-08-15 1941-08-15 Process for producing very thin glass films

Publications (1)

Publication Number Publication Date
DE739450C true DE739450C (en) 1943-09-25

Family

ID=7542388

Family Applications (1)

Application Number Title Priority Date Filing Date
DES146601D Expired DE739450C (en) 1941-08-15 1941-08-15 Process for producing very thin glass films

Country Status (1)

Country Link
DE (1) DE739450C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501185A1 (en) * 1981-03-06 1982-09-10 Bojoplast Gradjevinarstvo PROCESS FOR THE MANUFACTURE OF GLASS SHEETS HAVING A FEW MICRONS OF THICKNESS AND DEVICE FOR IMPLEMENTING SAME

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501185A1 (en) * 1981-03-06 1982-09-10 Bojoplast Gradjevinarstvo PROCESS FOR THE MANUFACTURE OF GLASS SHEETS HAVING A FEW MICRONS OF THICKNESS AND DEVICE FOR IMPLEMENTING SAME

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