DE4336046A1 - Electrically heated nozzle for molten glass - Google Patents

Electrically heated nozzle for molten glass

Info

Publication number
DE4336046A1
DE4336046A1 DE19934336046 DE4336046A DE4336046A1 DE 4336046 A1 DE4336046 A1 DE 4336046A1 DE 19934336046 DE19934336046 DE 19934336046 DE 4336046 A DE4336046 A DE 4336046A DE 4336046 A1 DE4336046 A1 DE 4336046A1
Authority
DE
Germany
Prior art keywords
glass
nozzle
electrically heated
feeder
gobs
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.)
Withdrawn
Application number
DE19934336046
Other languages
German (de)
Inventor
Diether Boettger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19934336046 priority Critical patent/DE4336046A1/en
Publication of DE4336046A1 publication Critical patent/DE4336046A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
    • C03B7/08—Feeder spouts, e.g. gob feeders
    • C03B7/094—Means for heating, cooling or insulation
    • C03B7/096—Means for heating, cooling or insulation for heating
    • C03B7/098—Means for heating, cooling or insulation for heating electric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)

Abstract

The invention relates to an electrically heated glass nozzle for the production of glass gobs and a supporting device therefor so they can work effectively in the formation of glass gobs. In this process and apparatus for the production of glass gobs, the glass, previously rendered flowable in a glass furnace, flows from a glass feeder, which can be made of refractory material and/or a platinum group metal, into the electrically heated glass nozzle, installed beneath the base of the feeder, the glass material being guided downward in the form of gobs into automatic processing machines.

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Vor­ richtung zur Herstellung von Glas-Tropfen mit einem beheiz­ ten aus feuerfestem Steinmaterial und/oder aus einer Platin­ legierung aufgebauten Glasspeiser, mit wenigstens einer Öff­ nung am Boden für das geschmolzene Glas zur beheizten Glas- Düseneinrichtung.The invention relates to a method and a front Direction for the production of glass drops with a heated made of refractory stone material and / or platinum alloy-built glass feeder, with at least one opening on the floor for the molten glass to the heated glass Nozzle device.

Es ist allgemein bekannt, Glas-Tropfen herzustellen. Bei den bekannten Verfahren werden die Glas-Tropfen aus einer nicht beheizten Keramik-Düse mittel eines sogenannten Plungers oder Nadel herausgepreßt.It is well known to make glass drops. Both known methods, the glass drops from a non heated ceramic nozzle by means of a so-called plunger or the needle is pressed out.

Nachteilig an den bekannten Verfahren ist die Tatsache, daß diese nur mit einer hohen Anzahl Tropfen pro Minute einwand­ frei arbeiten. Bei geringer Tropfenzahl pro Minute kühlt sich das Glas so stark ab, daß das ein Einfrieren des Glases in der Düse zur Folge hat.A disadvantage of the known methods is the fact that this only works with a high number of drops per minute work freely. Cools at low drops per minute the glass becomes so strong that it freezes the glass in the nozzle.

Die Erfindung hat sich zur Aufgabe gestellt, ein Verfahren und eine Vorrichtung zu schaffen, die bei wenigen Glas-Trop­ fen bis kleiner ein Glas-Tropfen pro Minute noch hervorra­ gend arbeitet und ein Einfrieren des Glases in der Glas-Düse ausschließt.The object of the invention is a method and to create a device that works with a few glass trop until a little less than one glass drop per minute works and freezing of the glass in the glass nozzle excludes.

Gemäß der Erfindung wird eine elektrisch beheizte, aus einer Metallegierung bestehenden Glas-Düse am Boden eines beheiz­ ten aus feuerfestem Steinmaterial und/oder aus einer Platin­ legierung aufgebauten Glasspeiser, mit wenigstens einer Öff­ nung am Boden, angesetzt. According to the invention, an electrically heated one Metal alloy existing glass nozzle at the bottom of a heated made of refractory stone material and / or platinum alloy-built glass feeder, with at least one opening on the floor.  

Die beheizte Glas-Düse ist aus einer Metallegierung, die be­ ständig gegenüber der Temperatur des erschmolzenen Glases zu sein vermag und die man auf Temperatur, die sich der Glas­ tropfenbildungstemperatur des Glasmaterials nähert, und die unter Durchleiten eines elektrischen Stromes erhitzt werden kann.The heated glass nozzle is made of a metal alloy that be constantly increasing in relation to the temperature of the melted glass be able to and the temperature of the glass approaching drop formation temperature of the glass material, and the are heated by passing an electric current can.

Ein bei der Herstellung von beheizten Glas-Düsen zu benut­ zendes Metall ist eine Platin und/oder Platin-Rhodium Legie­ rung. Es können auch Edelstahllegierungen z. B. Nickel/Chrom und/oder Stahl verwendet werden.One to use in the production of heated glass nozzles zendes metal is a platinum and / or platinum-rhodium alloy tion. Stainless steel alloys, e.g. B. Nickel / Chrome and / or steel can be used.

Stromanschlußklemmen in der Form von Streifen aus einer Me­ tallegierung, vorzugsweise Platin, Platin/Rhodium, Iridium und/oder Palladium, sind an den gegenüberliegenden Enden der elektrisch beheizten Glas-Düse angeschweißt oder durch Schraubverbindungen gehalten.Power terminals in the form of strips from a me Valley alloy, preferably platinum, platinum / rhodium, iridium and / or palladium are at the opposite ends of the electrically heated or welded glass nozzle Screw connections held.

Diese Stromanschlußklemmen sind an Stromschienen für die An­ lieferung von Strom zur Beheizung der Glas-Düse angeschlos­ sen.These power terminals are on power rails for the An Supply of electricity for heating the glass nozzle connected sen.

Zur Temperatursteuerung der elektrisch beheizten Glas-Düse sind Thermoelemente in die Seitenwand der Glas-Düse einge­ lassen.For temperature control of the electrically heated glass nozzle thermocouples are inserted into the side wall of the glass nozzle to let.

Der Stütz- oder Trageteil für die elektrisch beheizte Glas- Düse besteht aus einer keramischen Masse, die sich dicht ge­ gen die Oberfläche des zu beheizenden Metalls der Glas-Düse anpaßt.The support or support part for the electrically heated glass Nozzle consists of a ceramic mass that is tightly sealed towards the surface of the metal to be heated in the glass nozzle adjusts.

Claims (5)

1. Verfahren zur Herstellung von Glas-Tropfen, mit einem Glasspeiser aus feuerfesten oder Platinmaterial für das geschmolzene Glas mit wenigstens einer Glas-Düse, dadurch gekennzeichnet, daß das geschmolzene Glas von einem Glasspeiser über wenigstens eine im Boden des Glasspeisers befindliche Öffnung in eine Glas-Düse geleitet wird, daß das Glas in dieser Glas-Düse unter Durchleiten eines elektrischen Stroms durch die Glasdüse erwärmt wird.1. A method for producing glass drops, with a glass feeder made of refractory or platinum material for the molten glass with at least one glass nozzle, characterized in that the molten glass from a glass feeder via at least one opening in the bottom of the glass feeder into a glass -Director is passed that the glass in this glass nozzle is heated by passing an electric current through the glass nozzle. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß zwischen dem Glasspeiser und der Glas-Austritts­ öffnung eine elektrisch beheizte Glas-Düse vorgesehen ist.2. Device for performing the method according to claim 1, characterized, that between the glass feeder and the glass outlet An electrically heated glass nozzle is provided for the opening is. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Glas-Düse aus Platin - Platin/Rhodium- und/oder einer Edelstahllegierung hergestellt ist.3. Device according to claim 2, characterized, that the glass nozzle made of platinum - platinum / rhodium - and / or a stainless steel alloy is. 4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß an den Enden der Glas-Düse Strom-Anschlußklemmen angeschweißt und/oder angeschraubt sind.4. The device according to claim 2, characterized, that power terminals at the ends of the glass nozzle are welded and / or screwed. 5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Glas-Düse temperatur-, strom- oder spannungs­ gesteuert ist.5. The device according to claim 2, characterized, that the glass nozzle temperature, current or voltage is controlled.
DE19934336046 1993-10-22 1993-10-22 Electrically heated nozzle for molten glass Withdrawn DE4336046A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934336046 DE4336046A1 (en) 1993-10-22 1993-10-22 Electrically heated nozzle for molten glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934336046 DE4336046A1 (en) 1993-10-22 1993-10-22 Electrically heated nozzle for molten glass

Publications (1)

Publication Number Publication Date
DE4336046A1 true DE4336046A1 (en) 1995-04-27

Family

ID=6500748

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934336046 Withdrawn DE4336046A1 (en) 1993-10-22 1993-10-22 Electrically heated nozzle for molten glass

Country Status (1)

Country Link
DE (1) DE4336046A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948634B4 (en) * 1999-10-01 2005-02-03 Reeßing, Friedrich, Dr.rer.nat. Conditioner for molten glass with optimized electrical heating and improved thermal homogeneity of the glass
US6889526B2 (en) 2001-08-08 2005-05-10 Richard B. Pitbladdo Overflow downdrawn glass forming method and apparatus
US6895782B2 (en) 2002-08-08 2005-05-24 Richard B. Pitbladdo Overflow downdrawn glass forming method and apparatus
US6997017B2 (en) 2001-05-09 2006-02-14 Pitbladdo Richard B Overflow downdraw glass forming method and apparatus
DE102008006015A1 (en) 2008-01-25 2009-07-30 Diether Böttger Controlling of temperature during the production of glass tubes according to Vello and Down Draw method, by transporting a glass melt, if necessary after a pretreatment in a stirrer cell and cooling in a cooling zone, into a needle cell
US7681414B2 (en) 2001-08-08 2010-03-23 Corning Incorporated Overflow downdraw glass forming method and apparatus
US7690221B2 (en) 2004-02-23 2010-04-06 Corning Incorporated Sheet width control for overflow downdraw sheet glass forming apparatus
US7748236B2 (en) 2005-12-27 2010-07-06 Corning Incorporated Overflow downdraw glass forming method and apparatus
US8042361B2 (en) 2004-07-20 2011-10-25 Corning Incorporated Overflow downdraw glass forming method and apparatus
US9233869B2 (en) 2001-08-08 2016-01-12 Corning Incorporated Overflow downdraw glass forming method and apparatus

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948634B4 (en) * 1999-10-01 2005-02-03 Reeßing, Friedrich, Dr.rer.nat. Conditioner for molten glass with optimized electrical heating and improved thermal homogeneity of the glass
US6997017B2 (en) 2001-05-09 2006-02-14 Pitbladdo Richard B Overflow downdraw glass forming method and apparatus
US8365556B2 (en) 2001-08-08 2013-02-05 Corning Incorporated Overflow downdraw glass forming method and apparatus
US8006517B2 (en) 2001-08-08 2011-08-30 Corning Incorporated Overflow downdraw glass forming method and apparatus
US9802851B2 (en) 2001-08-08 2017-10-31 Corning Incorporated Overflow downdraw glass forming method and apparatus
US7155935B2 (en) 2001-08-08 2007-01-02 Bruce Technology Llc Sheet glass forming apparatus
US9233869B2 (en) 2001-08-08 2016-01-12 Corning Incorporated Overflow downdraw glass forming method and apparatus
US7681414B2 (en) 2001-08-08 2010-03-23 Corning Incorporated Overflow downdraw glass forming method and apparatus
US6889526B2 (en) 2001-08-08 2005-05-10 Richard B. Pitbladdo Overflow downdrawn glass forming method and apparatus
US8056365B2 (en) 2001-08-08 2011-11-15 Corning Incorporated Sheet glass forming apparatus
US6990834B2 (en) 2002-08-08 2006-01-31 Bruce Technology, Llc Overflow downdraw glass forming method and apparatus
US6895782B2 (en) 2002-08-08 2005-05-24 Richard B. Pitbladdo Overflow downdrawn glass forming method and apparatus
US8230699B2 (en) 2004-02-23 2012-07-31 Corning Incorporated Sheet width control for overflow downdraw sheet glass forming apparatus
US7690221B2 (en) 2004-02-23 2010-04-06 Corning Incorporated Sheet width control for overflow downdraw sheet glass forming apparatus
US8661850B2 (en) 2004-02-23 2014-03-04 Corning Incorporated Sheet width control for overflow downdraw sheet glass forming apparatus
US9643873B2 (en) 2004-02-23 2017-05-09 Corning Incorporated Sheet width control for overflow downdraw sheet glass forming apparatus
US8042361B2 (en) 2004-07-20 2011-10-25 Corning Incorporated Overflow downdraw glass forming method and apparatus
US8474286B2 (en) 2004-07-20 2013-07-02 Corning Incorporated Overflow downdraw glass forming method and apparatus
US8001805B2 (en) 2005-12-27 2011-08-23 Corning Incorporated Overflow downdraw glass forming method and apparatus
US7748236B2 (en) 2005-12-27 2010-07-06 Corning Incorporated Overflow downdraw glass forming method and apparatus
DE102008006015A1 (en) 2008-01-25 2009-07-30 Diether Böttger Controlling of temperature during the production of glass tubes according to Vello and Down Draw method, by transporting a glass melt, if necessary after a pretreatment in a stirrer cell and cooling in a cooling zone, into a needle cell

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