Schott Ag

Schott Glas

Schott Glaswerke

Other

Plansee Se

Schott-rohrglas Gmbh

Franz Ott

Joerg Hinrich Fechner

Karin Naumann

Brigitte Hueber

Christof Kass

Otmar Becker

Jörg Hinrich Fechner

Ralf Diezel

Peter Brix

Joerg Witte

Simone Monika Ritter

Burkhard Speit

Dirk Gohlke

Reinhard Mannl

Klaus-Dieter Duch

Eckhart Watzke

Andreas Reisse

Ottmar Becker

Gerhard Dipl-Ing Leichtfried

Christian Kunert

Thomas Kloss

Richard C Marlor

Wolfram Knabl

Volker Trinks

Erhard Dick

Jörg Witte

Reinhard Maennl

Frank Karetta

Andrea Kampfer

Rainer Haspel

Michael Ziegler

Johann Weber

Robert Rühl

Herbert Stappen

Siegfried Breitfelder

Max Raster

Juergen Achatz

Thomas Maenner

Gerd Rosner

Herman Walser

Joery Hinrich Fechner

Richard Marlor

The present disclosure provides the installation of an apparatus for cooling a manufactured glass rod. The apparatus has at least two cooling chambers arranged along the glass strand for sectional cooling of the glass strand. A gaseous cooling medium is either blown into the cooling chamber or sucked out of the cooling chambers. The glass strand is passed through each cooling chamber, with an orifice provided at each of the pass-through points, whose opening is larger than the cross-section or diameter of the glass strand. As a result, an annular gap forms between the opening and the surface of the glass strand, so that a turbulent flow of the gaseous cooling medium is generated, which enables a high cooling rate.

Apparatus and method for cooling a glass strand produced by means of tube drawing

A melting and/or refining unit for conductively heatable melts, in particular glass melts, is provided. The melting and/or refining unit has a tank and at least one electrode. The electrode passes through an opening in a wall of the tank so as to be immersed in the conductively heatable melt. The melting and/or refining unit has an apparatus for reducing the local introduction of heating power into at least one region adjacent to the electrode.

Unit for conductively heatable melting

A photovoltaic cell, for example a thin-film photovoltaic cell, having a substrate glass made of aluminosilicate glass, has a glass composition which has SiOand AlOas well as the alkali metal oxide NaO and the alkaline earth oxides CaO, MgO, and BaO, and optionally further components. The glass composition includes 10 to 16 wt.-% NaO, &#x3e;0 to &#x3c;5 wt.-% CaO, and &#x3e;1 to 10 wt.-% BaO, and the ratio of CaO:MgO is in the range of 0.5 to 1.7. The aluminosilicate glass used is crystallization stable because of the selected quotient of CaO/MgO and has a transformation temperature &#x3e;580&#xb0; C. and a processing temperature &#x3c;1200&#xb0; C. Therefore, it represents a more thermally stable alternative to soda-lime glass. The aluminosilicate glass is used as a substrate glass, superstrate glass, and/or cover glass for a photovoltaic cells, for example for thin-film photovoltaic cells, in particular those based on semiconductor composite material, such as CdTe, CIS, or CIGS.

Photovoltaic cell having a substrate glass made of aluminosilicate glass

The invention relates to an alumino-silicate glass which has a thermal expansion coefficient in the range of 8 to 10&#xd7;10/K in a temperature range of 20 to 300&#xb0; C., a transformation temperature Tg in a range of 580&#xb0; C. to 640&#xb0; C., and a processing temperature VA in a range of 1065&#xb0; C. to 1140&#xb0; C. and which can therefore be used as an alternative for soda lime glasses. An object of the invention is also the use of the inventive glasses in applications where a high temperature stability of the glasses is advantageous, in particular as substrate glass, superstrate glass and/or cover glass in the field of semiconductor technology, preferably for Cd&#x2014;Te or for CIS or CIGS photovoltaic applications and for other applications in solar technology.

Alumino-silicate glass having high thermal stability and low processing temperature

The regionally coated noble metal element used in glass production has an uncoated region for contacting a glass melt and an H-impervious layer or an H-impervious and O-impervious layer on a side opposite from the uncoated region, which has a layer thickness &#x2267;1 mm, is heat-resistant, and is either liquid or solid. This layer is made from at least one glass or glass mixture, an at least partly crystallized glass or a ceramic material. The coated noble metal element can be a Danner channel, a Vello draw head, an A-draw head, a Vello needle, a drawdown needle, a discharge ring or a Danner blowpipe. A process for coating a noble metal element to produce the regionally coated noble metal element is also described.

Coated noble metal elements for glass production

The borosilicate glass with improved solarization-resistance has a transmittance curve within an area bounded by respective curves defined by the corresponding equations &#x3c4;=1.7&#xb7;(&#x3bb;&#x2212;277) and &#x3c4;=1.6&#xb7;(&#x3bb;&#x2212;284) in a wavelength range of 283 nm to 325 nm. This glass has a composition, in wt. % based on oxide content, of: 55-82, SiO; 10-20, BO; 1-10, AlO; 0-5, LiO; 0-10, NaO; 0-10, KO; 0-10, &#x3a3;MO; 0-5, MgO; 0-10, CaO; 0-5, SrO; 0-15, BaO; 0-15, &#x3a3;MO; 0-3, ZrO; 0-5, ZnO; 0-2, CeO; 0-3, WO; 0-2, SnO: 0-0.1, FeO; 0.05-2, MoO; 0-5, BiO; 0-1, TiOand 0-5, oxides of selected rare earth and Group IVB to VIIIB elements. The transmittance is adjusted by varying the MoOcontent and if necessary the TiOand BiOcontent. The glass is especially suitable for use in a weathering apparatus.

Solarization-resistant glass composition having a UV-cutoff with a definite  transmittance gradient and radiating device for a weathering apparatus containing a glass of said composition

The invention relates to aluminoborosilicate glasses as a glass casing body of a lighting means, especially for background illumination, which glass composition is equally suitable for use in lighting means with external contacting as well as for lighting means with internal contacting.

Alkali-free aluminoborosilicate glasses for lighting means with external or internal contacting

The borosilicate glass for pharmaceutical packaging has a transmission &#x3c4; in the visible range of more than 80% at a wavelength of 400 nm, a transmission &#x3c4; in the UV range of at most 0.1% at wavelengths under 260 nm (each at a sample thickness of 1 mm), a transformation temperature Tg of 550&#xb0; C. to 590&#xb0; C. and a processing temperature Vof 1100&#xb0; C. to 1200&#xb0; C. The glass has a composition, in wt. % on an oxide basis, of SiO, 60-80; BO, 5-15; AlO, 2-10; TiO, 0.5-7; &#x3a3; LiO+KO+NaO, 3-10; &#x3a3; alkaline earth oxides, 0.5-10; ZrO, 0-3; and FeO, 0-0.2. The glass is suitable for packaging UV-sensitive substances but nevertheless permits optical quality control.

Borosilicate glass with UV-blocking properties for pharmaceutical packaging

The PbO-free UV-absorbing glass is made under oxidative conditions and has a composition, in % by weight, of: SiO, 55-79; BO, 3-25; AlO, 0-10; LiO, 0-10; NaO, 0-10; KO, 0-10; MgO, 0-2; CaO, 0-3; SrO, 0-3; BaO, 0-3; ZnO, 0-3; ZrO, 0-3; CeO, 0-1; FeO, 0-1; WO, 0-3; BiO, 0-3; MoO, 0-3; &#x3a3;LiO+NaO+KO=0.5 to 16 and &#x3a3;MgO+CaO+SrO+BaO+ZnO=0-10. It also contains from 0.1 to 10% TiOwith at least 95% of the titanium as Tiso that it has a high visible transmission, reduced color centers, and a sharp UV absorption edge. It is especially useful in lamps, display devices and glass-to-metal seals

UV-radiation absorbing glass with reduced absorption of visible light and method of making and using same

The coated noble metal element used in glass manufacture, such as a noble metal pipe, has an uncoated side that contacts a glass melt and an H-impervious layer or an H-impervious and O-impervious layer, which is provided on a side opposite from the uncoated side. The H-impervious layer or H-impervious and O-impervious layer is heat-resistant and is liquid or solid. In one process for providing the layer on the noble metal element an empty space between the noble metal element and a ceramic insulating jacket is filled with a coating material, and then the coating material is melted so that it wets a surface of the noble metal element. The coating material can include glass cullet, crushed glass or glass powder or is a mixture of crushed glass and ground ceramic material.

Coated metal elements for producing glass

The glass for a fluorescent light with a high hydrolytic resistance, which has composition, in % by weight based on oxide content of: SiO, 63-75; BO, 15-18; AlO, 3.2-4.5; NaO, 1-2; KO, 2-6; &#x3a3;NaO+KO, 3-8; MgO, 0-8; CaO, 0-10; SrO, 0-10; BaO, 0-10; ZnO, 0-5; &#x3a3;MgO+CaO+SrO+BaO+ZnO, 0-10; ZrO, 0-3; CeO, 0-10; FeO, 0-1; WO, 0-3; BiO, 0-5; MoO, 0-3; TiO, 0-10; &#x3a3;Hf+Ta+W+Re+Os+Ir+Pt+La+Pr+Nd+Sm+Eu+Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu in oxidic form, 0 to 5% by weight, as well as one or more conventional refining agents. The glass is characterized in that it contains no lithium and has a weight ratio of NaO to KO of less than one.

Hydrolysis-resistant glass, a method of making said glass and uses of same

Glass for gas discharge tubes, which are used in fluorescent lamps, EEFL lamps, LCD displays, computer monitors, telephone displays and TFT displays, and a process for making it are described. The glass contains, in % by weight based on oxide content: SiO, 60-75; BO, &#x3e;25-35; AlO, 0-10; LiO, 0-10; NaO, 0-20; KO, 0-20; MgO, 0-8; CaO, 0-20; SrO, 0-5; BaO, 0-5; ZnO, 0-3; ZrO, 0-5; TiO, 0-10; FeO, 0-0.5; CeO0-0.5; MnO, 0-1.0; NdO, 0-1.0; WO, 0-2; BiO, 0-5; MoO, 0-5; AsO, 0-1; SbO, 0-1; SO, 0-2; Cl, 0-2 and F, 0-2, wherein &#x3a3;LiO+NaO+KO=0-25% by weight; &#x3a3;MgO+CaO+SrO+BaO=0-20; &#x3a3;FeO+CeO+TiO+PbO+AsO+SbOis at least 0-10; and &#x3a3;PdO+PtO+PtO+PtO+RhO+RhO+IrO+IrOis from 0.00001-0.1.

UV-absorbing borosilicate glass for a gas discharge lamp and process for manufacturing same

The crystallization-stable alumino-silicate glass is free of BOand contains 50 to 60% by weight, SiO; 14 to 25% by weight, AlO; 0 to 2% by weight, PO; 0 to 7, % by weight, MgO; 5 to 14% by weight, CaO; 0.1-2.0% by weight, SrO; 12.0 to 18% by weight BaO and at least 0.01% by weight MoO. The glass preferably contains &#x3c;0.01 wt. % of water. The glass has high transmission in the visible and IR region of the spectrum, which makes it especially suitable for lamps, bulbs for halogen lamps; and also for solar collectors, for flat display screens and for pharmaceutical packages n which the glass functions as a UV-protective glass.

Crystallization-stable alumino-silicate glass, its manufacture and its uses

The alumino-silicate glass for lamp bulbs with molybdenum components contains alkaline earth metals and has the following composition (in % by weight based on oxide): SiO&#x3e;58 to 62, AlO15 to 17.5, MgO 0.1 to &#x3c;1, CaO 5.5 to 14, SrO 0 to 8, BaO 6 to 17, ZrO0 to 1, CeO0 to 0.3, TiO0 to 5, MoO0 to 2, BiO0 to 4, with a sum total amount of alkaline earth oxides from 11.6 to 29. In addition, the alumino-silicate glass is free of BOso that it has a high thermal stability. Lamp bulbs made with this glass can withstand a bulb temperature of greater than 650&#xb0; C.

Glass that withstands high-temperatures for lamp bulbs, and its use

The lamp bulb for discharge lamps is made from an aluminosilicate glass with a transformation temperature Tg&#x3e;600&#xb0; C. The aluminosilicate glass has a composition (in % by weight, based on oxide content) of SiO&#x3e;55-64; AlO, 13-18; BO, 0-5.5; MgO, 0-7; CaO, 5-14; SrO, 0-8; BaO, 6-17; ZrO, 0-2; TiO, 0-5, but may contain small amounts of CeOand/or FeO, for anti-solarization and fining agents, such as SnO, SbOand/or AsO. The lamp bulbs for the discharge lamps of the invention may include a melted-in molybdenum electrode and/or an electrode feed or they may be free of any internal electrodes. A method for making the lamp bulbs is also described.

Lamp bulbs for discharge lamps made from aluminosilicate glass, discharge lamps made with same and method of making same

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Mitterteich, Germany

Franz Ott