ПРОЗРАЧНАЯ ЛИТИЙ-АЛЮМОСИЛИКАТНАЯ СТЕКЛОКЕРАМИКА, ИЗГОТОВЛЕННАЯ С ИСПОЛЬЗОВАНИЕМ ЭКОЛОГИЧЕСКИ ПРИЕМЛЕМЫХ ОСВЕТИТЕЛЕЙ

FIELD: ceramic industry. SUBSTANCE: present invention relates to transparent glass ceramic with low thermal expansion. Transparent glass ceramics contains following, wt%: SiO 2 35-70; Al 2 O 3 17-35; Li 2 O 2-6; TiO 2 0-6; ZrO 2 0-6; TiO 2 + ZrO 2 0.5-9; ZnO 0.5-5. Glass ceramics produced by clarification using SnO 2 and at least one additional clarifier, wherein additional clarifier is selected from Sb 2 O 3 , SO 4   2- , Br - and Cl - , in molar ratio from 1:2 to 2:1. Glass ceramics has coefficient of thermal expansion of 0±0.10·10 -6 k in temperature range from 0 to 50 °C and contains one or more crystalline phases, selected from group consisting of high-temperature quartz mixed crystals of high-temperature quartz keatite, mixed keatite crystals, beta eucryptite. EFFECT: technical result consists in production of glass ceramics with thermal expansion close to zero. 17 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 585 327 C2 (51) МПК C03C 10/04 (2006.01) C03C 10/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011106491/03, 21.02.2011 (24) Дата начала отсчета срока действия патента: 21.02.2011 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ШРЕДЕР Бианка (DE), РАЙХ Мария-Луиза (DE), КЛАУССЕН Олаф (DE) 22.02.2010 DE 102010002188.1 (43) Дата публикации заявки: 27.08.2012 Бюл. № 24 R U (73) Патентообладатель(и): ШОТТ АГ (DE) (45) Опубликовано: 27.05.2016 Бюл. № 15 2 5 8 5 3 2 7 R U (54) ПРОЗРАЧНАЯ ЛИТИЙ-АЛЮМОСИЛИКАТНАЯ СТЕКЛОКЕРАМИКА, ИЗГОТОВЛЕННАЯ С ИСПОЛЬЗОВАНИЕМ ЭКОЛОГИЧЕСКИ ПРИЕМЛЕМЫХ ОСВЕТИТЕЛЕЙ (57) Реферат: Настоящее изобретение относится к осветлителя, причем дополнительный осветлитель прозрачной стеклокерамике с низким выбран из Sb2O3, SO4 2-, Br- и Cl-, в мольном термическим расширением. Технический отношении от 1:2 до 2:1. Стеклокерамика имеет результат изобретения заключается в получении коэффициент термического расширения 0±0,10· стеклокерамики с термическим ...

ЛИТИЙСОДЕРЖАЩЕЕ СТЕКЛО С ВЫСОКИМ СОДЕРЖАНИЕМ ОКИСЛИТЕЛЬНОГО ЖЕЛЕЗА И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к литийсодержщим стеклам с высоким содержанием окисленного железа. Технический результат изобретения заключается в сокращении времени перехода от производственного цикла изготовления стекла с высоким поглощением в ИК-области к производственному цикла изготовления стекла с низким поглощением в ИК-области или наоборот. Стекло содержит следующие компоненты, % масс.: SiO60-63; NaO 10-12; LiO 4-5,5; AlO17-19; ZrO3,5-5; AlO+ZrO21,5-24; FeO 0,0005-0,015; FeO(общее железо) 50-1200 ч./млн и окислитель, выбранный из группы, включающей оксид церия в количестве более 0-0,50% масс., оксид марганца в количестве более 0-0,75% масс. и их смеси. Способ замены процесса изготовления стекла процесса изготовления литиевого стекла с высоким поглощением в инфракрасной области с содержанием FeO в количестве 0,02-0,04% масс. и редокс отношением в диапазоне 0,2-0,4 на процесс изготовления литиевого стекла с низким поглощением в инфракрасной области добавлением дополнительных окислителей - CeOи ...

Läutermittel für Silikatgläser

Silikatglas, wobei das Silikatglas eine Konzentration an Einschlüssen von weniger als 1 Einschluss/cm3 aufweist, wobei das Silikatglas enthält: 60 bis 70 Mol-% SiO2; 6 bis 14 Mol-% Al2O3; 0 bis 15 Mol-% B2O3; 0 bis 3,5 Mol-% Li2O; 0 bis 20 Mol-% Na2O; 0 bis 10 Mol-% K2O; 0 bis 2,5 Mol-% CaO; 0 bis 5 Mol-% ZrO2; 0 bis 1 Mol-% SnO2; 0 bis 1 Mol-% CeO2; und wobei 12 Mol-% Li2O + Na2O + K2O 20 Mol-% und wobei das Silikatglas weniger als 50 ppm As2O3 enthält.

Vorrichtung zur Nassbehandlung von laufenden Faeden, insbesondere zur Nachbehandlung von kuenstlichen Faeden im fortlaufenden Arbeitsgang

VERFAHREN ZUM HERSTELLEN EINES GLASARTIKELS

Die Erfindung betrifft ein Verfahren zum Herstellen eines Glasartikels mit hoher hydrolytischer Resistenz, bei dem zunächst ein Glasrohr aus einem Borosilikatglas mit einem AlO-Gehalt von unter 1 Gew.-% und einem ZrO-Gehalt von 2 - 12 Gew.-% und mit einer Glasübergangstemperatur Tzu einem Glasartikel umgeformt und anschließend einer thermischen Nachbehandlung unterzogen wird. Zur Verringerung der Alkaliabgabe eines durch ein solches Verfahren hergestellten Glasartikels ist vorgesehen, dass der Glasartikel bei der thermischen Nachbehandlung für eine Behandlungszeit t≥ 5 min einer Behandlungstemperatur T≥ T+ 5 K ausgesetzt ist und anschließend abgekühlt wird.

ARSENFREIE GLÄSER

Laserglaeser mit hohem Beschaedigungs-Schwellenwert und Verfahren zum Herstellen derselben

Method of suppressing foam formation during glass manufacture

A method of manufacturing glass comprising supplying batch ingredients to a glass-melting furnace 10, where said ingredients form molten glass 13, supplying a metal compound to the molten glass, thereby reducing or eliminating a foam layer which is liable to develop on the surface of the molten glass as melting occurs, wherein the metal compound includes a metal chosen from the group containing molybdenum, tungsten and zirconium. The metal compound may be supplied in a solution, a slurry, as a vapour, by spraying into the furnace atmosphere directly above the molten glass (preferably using spraying nozzles), by addition to the batch ingredients or by bubbling into the molten glass. The metal compound may be un-reacted, or part of a reaction intermediate or reaction product as it contacts the molten glass.

VERFAHREN UND VORRICHTUNG ZUR HOMOGENISIERUNG UND/ODER RAFFINATION VON GLAS

PROCEDURE AND DEVICE FOR THE HOMOGENIZATION AND/OR REFINING OF GLASS

GRANULATED COMPOSITIONS FUER GLASS MIXTURES, PROCEDURE FOR YOUR PRODUCTION AND YOUR USE.

GLASS CERAMICS ON BASIS OF LITHIUMALUMINOSILIKAT.

VACUUM LAEUTERUNG GLASSY MATERIALS WITH CONTROLLED FOAM DEVELOPMENT.

PROCEDURE FOR THE PRODUCTION OF BOROSILIKATGLÄSERN

ALKALI FREE ALUMINOSILICATGLAS

CLEAR GLASS COMPOSITION WITH HIGH VISIBLE TRANSMITTANCE

Method for producing borosilicate glasses

VACUUM REFINING OF GLASSY MATERIALS WITH CONTROLLED FOAMING

Method for refining glassy material where a volume of the molten material is placed in an enclosed vessel with a layer of foam present above the surface of the melt. A subatmospheric pressure is created in the vessel to assist in refining of the material and a region within the vessel but above the melt is heated to accelerate collapsing of the foam in the headspace above the melt.

RAW MATERIALS FOR GLASS MAKING AND METHODS OF MAKING THEM

GLASS COMPOSITION FOR IMPROVED REFINING AND METHOD

A soda-lime-silica based glass composition for manufacturing on a float line that has a faster refining rate due to the introduction of alkali earth oxides such as BaO, ZnO and/or SrO in the amount of from about 1-4 wt % in total. These oxides replace part or all of the MgO in the base glass composition thereby decreasing the overall MgO content in the glass composition to about 2 wt % or less. The glass can realize a lower viscosity at high temperatures so that refining of the melt may occur faster.

WATER ENHANCED SULFATE FINING PROCESS - A METHOD TO REDUCE TOXIC EMISSIONS FROM GLASS MELTING FURNACES

A method of glass formation which provides for reduced levels of toxic emissions is disclosed wherein conventional batch fining agents such as Na2SO4, As2O5 or Sb2Os are used in lesser amounts in combination with dissolved water in the glass making process. Sources of water in the process include alkali-metal hydroxides, steam bubbled into the molten glass, submerged combustion of the glassmelt with H2 and O2, the use of hydrocarbon based combustion. Glass quality is not compromised.

Appareil pour le traitement liquide de fils textiles.

Use of lead free and phosphathaltigen glass ones in a procedure for blank presses.

Die vorliegende Erfindung betrifft die Verwendung von bleifreien und phosphathaltigen Gläsern, vorzugsweise Farb- und Filtergläsern, die Licht im Infrarotbereich (IR-Bereich) absorbieren in einem Verfahren zum Blankpressen. Vorzugsweise ist der Gehalt an Fluorid im Glas gering.Vorteilhafterweise können so optische Bauteile ohne Nachbearbeitung hergestellt werden, wie zum Beispiel Linsen für Digitalkameras. Mittels der erfindungsgemässen Verwendung sind auch andere optische Bauteile herstellbar, welche direkt für einen entsprechenden technischen Zweck eingesetzt werden können. Zur vorteilhaften Anwendung können die durch Blankpressen hergestellten optischen Bauteile in den Bereichen Abbildung, Projektion, Telekommunikation, optische Nachrichtentechnik und Lasertechnologie zum Einsatz kommen.

METHOD OF REFINING GLASS

DEVELOPMENT OF VITROCERAMICS OF BETA-QUARTZ AND/OR BETA-SPODUMENE, ARTICLES IN SUCH VITROCERAMICS; VITROCERAMICS, ARCTICLES IN THE AFOREMENTIONED VITROCERAMICS AND GLASSES PRECURSORY

Process for the refining of glasses to borosilicate and products obtained by this process

QUARTZ GLASS-CERAMIC B AND/OR B SPODUMENE, PRECURSOR GLASSES, SAID CERAMICS ARTICLESEN , AND PRODUCING SAID GLASS-CERAMIC ARTICLES

La présente invention a pour objet :- de nouvelles vitrocéramiques, contenant une(des) solution(s) solide(s) de beta-quartz ou(et) de beta-spodumène comme phase(s) cristalline(s) principale(s) ;- des articles en lesdites nouvelles vitrocéramiques ;- des verres d'alumino-silicate de lithium, précurseurs de telles nouvelles vitrocéramiques ;- des procédés d'élaboration desdites nouvelles vitrocéramiques et desdits articles en lesdites nouvelles vitrocéramiques.Elle repose sur l'utilisation, à titre d'agent d'affinage du verre précurseur de vitrocéramique, de SnO2 (0,15 à 0,3% en masse) et de CeO2 et/ou MnO2 (0,7 à 1,5% en masse). The subject of the present invention is: - new glass-ceramics containing a solid solution (s) of beta-quartz or (and) beta-spodumene as the main crystalline phase (s) - articles in the said new glass-ceramics - glasses of lithium alumino-silicate, precursors of such new glass-ceramics - processes for producing said new glass-ceramics and said articles in said new glass-ceramics.It is based on the use, as a refining agent for the glass-ceramic precursor glass, SnO2 (0.15 to 0.3% by weight) and CeO2 and / or MnO2 (0.7 to 1.5% by weight).

GLASS MELTING IN THE PRESENCE OF SULPHUR

L'invention concerne un procédé de fabrication d'un verre par fusion à plus de 1300 degres C de matières vitrifiables comprenant de la silice et un sulfate d'alcalin ou d'alcalino-terreux, caractérisé en ce que l'on ajoute un sulfure aux matières vitrifiables afin de réduire la hauteur de mousse en surface du bain de verre liquide à plus de 1300 degres C. L'invention réduit la formation de mousse en surface du verre et améliore les échanges thermiques entre les brûleurs aériens et le bain de verre. L'invention est particulièrement adaptée au verre destiné à être fibré. The invention relates to a process for producing a glass by melting at more than 1300 ° C vitrifiable materials comprising silica and an alkali or alkaline earth sulfate, characterized in that a sulphide is added. to vitrifiable materials in order to reduce the foam height on the surface of the liquid glass bath to more than 1300 degrees C. The invention reduces the formation of foam on the surface of the glass and improves the heat exchange between the overhead burners and the glass bath . The invention is particularly suitable for glass intended to be fiber-reinforced.

VITROCERAMICS OF BETA-QUARTZ AND/OR BETA SPODUMENE, GLASSES PRECURSORY, ARTICLES IN THE AFOREMENTIONED VITROCERAMICS, DEVELOPMENT OF THE AFORESAID VITROCERAMICS AND ARTICLES

La présente invention a pour objet :- de nouvelles vitrocéramiques de beta-quartz et/ou de beta-spodumène ;- des articles en lesdites nouvelles vitrocéramiques ;- des verres d'alumino-silicate de lithium, précurseurs desdites nouvelles vitrocéramiques ;- des procédés d'élaboration desdites nouvelles vitrocéramiques et d'articles en lesdites nouvelles vitrocéramiques.La présente invention repose sur l'utilisation, à titre d'agent d'affinage du verre précurseur de vitrocéramique, de SnO2 et de Br.

PROCEDE POUR LA PREPARATION DE VERRE PERMEABLE AU RAYONNEMENT ULTRAVIOLET

FINING AGENTS FOR SILICATE GLASSES

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cmis also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cmare also described. 1. A method of making a silicate glass having a seed concentration of less than about 1 seed/cm , wherein the method comprises:{'sub': 2', '2', '3', '2', '3', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3, 'melting at a first temperature a glass batch comprising 60-70 mol % SiO; 6-14 mol % AlO; 0-3 mol % BO; 0-1 mol % LiO; 8-18 mol % NaO; 0-5 mol % KO; 0-2.5 mol % CaO; above 0 to 3 mol % ZrO; 0-1 mol % SnO; and 0-1 mol % CeO; wherein 12 mol %≦LiO+NaO+KO≦20 mol %, and wherein the glass batch comprises less than 50 ppm AsO; and'}{'sup': '3', 'heating at a second temperature greater than the first temperature for a time sufficient to produce the silicate glass having a seed concentration of less than about 1 seed/cm.'}2. The method of wherein the first temperature is about 1425° C. to about 1550° C. and the second temperature is about 1525° C. to about 1675° C.3. The method of wherein the difference between the second temperature and the first temperature is about 50° C. to about 250° C.4. The method of wherein the difference between the second temperature and the first temperature is about 75° C. to about 100° C.5. The method of wherein the glass batch comprises at least one inorganic compound that acts as of a source of HO at a temperature where a melt is formed.6. The method of wherein the glass batch comprises oxidizer fining agent ...

Fining of boroalumino silicate glasses

Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and Σ[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and Σ[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.

Method for controlling secondary foam during glass melting

A method for controlling secondary foam in a glass melting process is provided in which an oxidizing agent is added to a second melt region (32) of a glass furnace (14) where secondary foam (52) is formed. The oxidizing agent may be supplied directly to the second melt region (32) or may be added to the molten glass composition (46) with the batch raw materials (44) in a first melt region (30). When added directly, the oxidizing agent is preferably an oxidizing gas. When added with the batch materials (44), the oxidizing agent is a high temperature oxidizing agent which is inactive in the first melt region (30) yet active in the second melt region (32).

Method of eliminating blisters in a glass making process

A method of controlling blister formation in a glass melt flowing through a system comprising one ore more refractory metal vessels by developing a blister index and determining the critical blister index value. The critical value of the blister index may be used to control the principal variables responsible for blister formation, including the water content of the melt, the concentration of reduced multivalent oxide compounds in the melt, and the hydrogen partial pressure of an atmosphere in contact with the outside surface of the refractory metal vessel. Also disclosed is a minimum partial pressure of hydrogen necessary to produce an essentially blister-free glass article in a glass essentially free of arsenic and antimony.

FLOAT GLASS SUBSTRATE

The present invention relates to a float glass substrate including an alkali-free glass, the float glass substrate having a Cl content of from 0.10 to 0.50 mass %, containing substantially no SnO2, and having a Pt content of, by mass, from 0.001 to 0.30 ppm. The float glass substrate may have a Rh content of, by mass, from 0.001 to 0.50 ppm.

МАТЕРИАЛ ДЛЯ ОСВЕТЛЕНИЯ И ГОМОГЕНИЗАЦИИ СТЕКЛОМАССЫ В ПРОЦЕССЕ ВАРКИ СИЛИКАТНЫХ СТЕКОЛ

Изобретение относится к химическим технологиям при производстве стекла и охране окружающей среды, в частности оно может быть использовано для получения осветленных и гомогенизированных стекол. Материал для осветления и гомогенизации стекломассы в процессе варки силикатного стекла представляет собой сухую смесь солей, содержащую карбонаты кальция и лития. Смесь солей образуется после обезвреживания сильнокислой шахтной воды сульфатного класса при pH среды 12-13 реагентом Са(ОН)2 до полного соосаждения металлов, кроме лития, удаления осадка из воды, насыщения воды СО2 с образованием осадка из соединений СаСО3 и Li2СO3 в воде, освобождения от воды осадка с получением готового продукта – сухой смеси СаСО3⋅Li2СO3. Технический результат – ускорение, упрощение процессов осветления и гомогенизации расплава стекломассы при варке силикатного стекла. 1 ил., 1 табл.

VERFAHREN ZUR Herstellung von GLAS

Transparenter Artikel aus Glaskeramik mit hoher Oberflächenqualität sowie Verfahren zu dessen Herstellung

Die vorliegende Erfindung betrifft einen transparenten Artikel aus Glaskeramik mit hoher Oberflächenqualität sowie ein Verfahren zu dessen Herstellung. Der Artikel aus Glaskeramik ist zur Verwendung als Sichtscheibe geeignet.Das erfindungsgemäße Verfahren zur Herstellung des Artikels aus Glaskeramik umfasst die folgenden Schritte:- Erzeugen einer Schmelze mit einer für eine Keramisierung geeigneten Rohstoff-Zusammensetzung,- Erzeugen eines flachen Substrates aus keramisierbarem Grünglas mit zwei gegenüberliegend angeordneten, im wesentlichen ebenen Oberflächen aus der Schmelze mittels Heißformgebung,- Bearbeiten von zumindest einer der Oberflächen des Substrates mit einem glättenden Feinbearbeitungsverfahren,- Keramisieren des Substrates zur Erzeugung des Artikels aus Glaskeramik.

Verfahren zur Herstellung durchsichtiger, hitzebestaendiger Borosilikatglaeser

Melting of mineral materials

IMPROVEMENTS IN OR RELATING TO THE MANUFACTURE OF GLASS

... 1,236,905. Glass batch. COMPAGNIE DE SAINT-GOBAIN. 23 Jan., 1969 [23 Jan., 1968], No. 3937/69. Heading C1M. A batch for making siliceous glass, and contaming compounds that give an oxide of an alkali metal and of an alkaline earth metal, wherein the compound providing the alkali metal oxide is at least partially present as the alkali metal hydroxide, and the compound providing the alkaline earth metal oxide is present at least partially as the alkaline earth metal oxide. The alkaline earth metal oxide may be baked dolomite or quicklime. The alkali metal hydroxide may be NaOH. present either anhydrous or as an aqueous solution. The batch is preferably granulated. Preferably in making the batch aqueous NaOH (60-75% by weight concentration) is added in the molten state to the other raw materials, the batch thus prepared being maintained at not above 75‹ C. until it is introduced into the melting furnace. Considerable improvement in melting speed is said to result from the use of the batches ...

Improved method of fining glass and glass produced thereby

... 396,015. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Dalton, R. H. ; 96, East 2nd Street, Corning, New York, U.S.A. May 29, 1933, No. 15480 Convention date, July 30, 1932. [Class 56.] A method of fining molten glass consists in adding to the batch a small amount of a material which contains bromine or iodine, for example, iodides, iodoform, or bromides.

Cerate refining of glass ceramics

Cerium dioxide or a cerate compound is proposed as a refining agent for beta -eucryptite (a lithium aluminium silicate glass-ceramic material whose thermal coefficient of expansion can be adjusted to near zero by controlled substitution and devitrification). Cerium dioxide and cerate refining agents enable transparent beta -eucryptite to be obtained, which is useful in applications such as cooker hobs and also lasers. Hitherto, arsenic and antimony oxides, which are volatile at the refining temperature, have been used as refining agents.

Procedure and device for decolorizing and cleaning Glasschmelzen

PROCEDURE FOR LAEUTERN OF GLASS

METHOD OF FORMING GLASSES

A method of making glasses with manufacturing systems employing platinum or molybdenum melting, fining, delivery, or forming vessel, wherein the partial pressure of hydrogen outside the vessel is controlled or manipulated, relative to the partial pressure of hydrogen inside the platinum structure, to minimize surface blistering in the glass in contact with the platinum or molybdenum.

ALKALI-FREE ALUMINOBOROSILICATE GLASS, ITS USE AND PROCESS FOR ITS PREPARATION

The invention relates to an alkali-free aluminoborosilicate glass which has the following composition (in % by weight , based an oxide): SiO2 > 60 - 65; B2O3 6.5 - 9.5; Al2O3 14 - 21; MgO 1 - 8; CaO 1 - 6 ; SrO 1 - 9 ; BaO 0.1 - 3.5; with MgO + CaO + SrO + BaO 8 - 16; ZrO2 0.1 - 1.5; SnO2 0.1 - 1; TiO2 0.1 - 1; CeO2 0.01 - 1. The glass is particularly suitable for use as a substrate glass in display technology.

СПОСІБ ВИГОТОВЛЕННЯ БОРОСИЛІКАТНИХ СТЕКОЛ

Винахід стосується способу виготовлення боросилікатних стекол гідролітичного класу 1, згідно з яким готують шихту з додаванням щонайменше одного просвітлювального засобу, закладають шихту, варять скло і здійснюють наступне гаряче формоутворення розплавленої скломаси, причому до шихти додають від 0,01 до 0,8 мас. % сульфату або сульфатів у перерахунку на SО3.

Li2O-Al2O3-SiO2 crystal glass and crystallizable glass thereof

Process removing the colouring of glass obtained by electric fusion

PROCESS FOR THE MANUFACTURE OF A LOAD VITRIFICAVEL

METHOD OF REFINING GLASS AND PRODUCT OBTAINED

The subject of the invention is a method of refining glass, the temperature (Tlog2) of which, corresponding to a viscosity of 100 poise (10 Pa.s), is equal to 1480°C or higher, characterized in that sulphides are used as refining agent. The subject of the invention is also glass that can be obtained by this method.

Ultrafine nepheline syenite

A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.

Method of making clear glass composition

A technique of manufacturing glass having fairly clear color and/or high visible transmission is provided. In certain example embodiments of this invention, it has surprisingly been found that by using carbon-containing compound(s) including CxHyOz.mH2O, excellent melting and refining can be achieved in the manufacture of glass, and not as much ferrous iron is formed compared to the use of elemental carbon as a refining agent. Such compound(s) are especially advantageous when highly transparent clear glass is desired, in that less ferrous iron is formed and thus transmittance and coloration can be improved.

Foam control method for vacuum refining of glassy materials

In a process for refining molten glass or the like by vacuum the collapse of foam is accelerated by depositing foam breaking substances onto the foam. The foam breaking substances include water, alkali metal compounds such as sodium hydroxide or sodium carbonate, and solutions of such compounds.

METHOD FOR MELTING GLASS

PROBLEM TO BE SOLVED: To prevent the generation of waste gas contg. much NOx and melting segregation in a melting process and to suppress the generation of bubbles in glass by adding antimony pentoxide as a clarifier to nitrate-free starting materials for glass. SOLUTION: Antimony pentoxide is added as a clarifier by 0.1-3 wt.%, preferably 0.3-3 wt.% to nitrate-free starting materials for glass consisting of, by weight, 45-70% SiO2, 7.5-25% Al2O3, 4-17.5% B2O3, 0-10% MgO, 0-10% CaO, 0-10% SrO, 0-30% BaO, 0-5% ZnO, 0-5% TiO2 and 0-5% ZrO2, contg. no alkali metal oxide and having ≥620°C strain point and they are melted. This method is effective to alkali-free glass having a high melting temp. and difficult to clarify. COPYRIGHT: (C)1999,JPO ...

ПРОЗРАЧНАЯ ЛИТИЙАЛЮМОСИЛИКАТНАЯ СТЕКЛОКЕРАМИКА, ИЗГОТОВЛЕННАЯ С ИСПОЛЬЗОВАНИЕМ ЭКОЛОГИЧЕСКИ ПРИЕМЛЕМЫХ ОСВЕТЛИТЕЛЕЙ

1. Прозрачная стеклокерамика с низким термическим расширением, имеющая следующий состав (в мас.% в расчете на оксиды): ! SiO2 35-70 Аl2О3 17-35 Li2O 2-6 TiO2 0-6 ZrO2 0-6 TiO2+ZrO2 0,5-9 ZnO 0,5-5, ! которая получена осветлением с использованием SnO2 и, по меньшей мере, одного дополнительного осветлителя, причем дополнительный осветлитель выбран из Sb2O3, SO4 2-, Вr- и Сl-. ! 2. Стеклокерамика по п.1, которая содержит, по меньшей мере, один дополнительный компонент, который образован из осветлителя, выбранного из Sb2O3, SO4 2- и Сl-. ! 3. Стеклокерамика по п.1, в которой, по меньшей мере, один компонент, образованный из осветлителя, содержится в количестве 0,001-2 мол.%, каждый, по отношению к стеклокерамике. ! 4. Стеклокерамика по п.2, в которой, по меньшей мере, один компонент, образованный из осветлителя, содержится в количестве 0,001-2 мол.%, каждый, по отношению к стеклокерамике. ! 5. Стеклокерамика по любому из пп.1-4, в которой компонент, образованный из осветлителя SnO2, содержится в количестве 0,001-2 мол.%. ! 6. Стеклокерамика по любому из пп.1-4, в которой термическое расширение стеклокерамики находится в диапазоне 0±0,10·10-6/К. ! 7. Стеклокерамика по п.5, в которой термическое расширение стеклокерамики находится в диапазоне 0±0,10·10-6/K. ! 8. Стеклокерамика по любому из пп.1-4, 7 которая дополнительно содержит один или более из следующих компонентов (в мас.% в расчете на оксиды): ! В2O3 0-6 Na2O 0-2 К2O 0-2 МgО 0-5 Р2O3 0-17 CaO 0-4 BaO 0-5 SrO 0-5. ! 9. Стеклокерамика по п.5, которая дополнительно содержит один или более из следующих компонентов (в мас.% в расчете на оксиды): ! В2О3 0-6 Na2O 0-2 К2O 0-2 MgO 0-5 Р2O3 0-17 CaO 0-4 BaO 0-5 SrO 0-5. ! 10. Стеклокерамика по п.6, которая дополнительно содержит один или б РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 106 491 (13) A (51) МПК C03C 10/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): ШОТТ АГ (DE) (21)(22) Заявка: 2011106491/03, 21.02.2011 ...

МАТЕРИАЛ ДЛЯ ОСВЕТЛЕНИЯ И ГОМОГЕНИЗАЦИИ СТЕКЛОМАССЫ В ПРОЦЕССЕ ВАРКИ СИЛИКАТНЫХ СТЕКОЛ

Изобретение относится к области производства стекла и охраны окружающей среды. Оно может быть использовано для получения преимущественно силикатных эмалей, высокотемпературных силикатных стекол и применимо на стадии стеклообразования в зоне варки и очистки после обезвреживания кислых шахтных вод сульфатного класса Кизеловского угольного бассейна. Материал для осветления и гомогенизации стекломассы в процессе варки силикатных стекол представляет собой смесь солей. Смесь солей содержит сульфат аммония и карбонат лития, образуется после обработки кислой шахтной воды сульфатного класса, содержащей ионы металлов и сульфата, аммонийсодержащим реагентом – NH4OH, вводимым в количестве 1,5-2% от общего количества воды, до полного соосаждения тяжелых металлов, удаления осадка из воды, обработки воды СО2 с образованием осадка в виде смеси (NH4)2SO4 и Li2СО3 и высушивания осадка. Технический результат – получение материала для круглогодичного применения при варке высоковязких, высокотемпературных силикатных ...

METHOD AS A CHECK OF FOAM WITH THE VACUUM LAEUTERUNG GLASSY MATERIALS.

PROCEDURE FOR THE CONTROL AND ATTITUDE OF THE REDOX CONDITION OF REDOX RINGING DETERMINING IN A GLASSCHMELZE AS WELL AS CONTINUOUS GLASS FUSION AGGREGATE WITH MEANS TO THE EXECUTION OF THIS PROCEDURE MISTAKE IS

PROCEDURE FOR LAEUTERN OF GLASS

FOAM CONTROL METHOD FOR VACUUM REFINING OF GLASSY MATERIALS

In a process for refining molten glass or the like by vacuum, the collapse of foam is accelerated by depositing foam breaking substances onto the foam. The foam breaking substances include water, alkali metal compounds such as sodium hydroxide or sodium carbonate, and solutions of such compounds.

METHOD OF REDUCING VOLATILIZATION FROM AND INCREASING HOMOGENEITY IN GLASS

A method is provided for the production of glass with reduced volatilization of components. Such method allows the reduction of emitted metals and other volatiles in the production of glass. The method encompasses the use of a calcium magnesium silicate in the productions glass composition.

GLASS COMPOSITION FOR IMPROVED REFINING AND METHOD

A soda-lime-silica based glass composition for manufacturing on a float line that has a faster refining rate due to the introduction of alkali earth oxides such as BaO, ZnO and/or SrO in the amount of from about 1-4 wt % in total. These oxides replace part or all of the MgO in the base glass composition thereby decreasing the overall MgO content in the glass composition to about 2 wt % or less. The glass can realize a lower viscosity at high temperatures so that refining of the melt may occur faster.

LITHIUM CONTAINING GLASS WITH HIGH OXIDIZED IRON CONTENT AND METHOD OF MAKING SAME

A low infrared absorbing lithium glass Includes FeO in the range of 0.0005-0,015 wt%, more preferably 0.001-0.010 wt%, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0,04 wt% and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material In one embodiment of the invention the oxidizer is CeO2. An embodiment of the invention covers a glass made according to the method.

WATER ENHANCED SULFATE FINING PROCESS - A METHOD TO REDUCE TOXIC EMISSIONS FROM GLASS MELTING FURNACES

A method of glass formation which provides for reduced levels of toxic emissions is disclosed wherein conventional batch fining agents such as Na2SO4, As2O5 or Sb2O5 are used in lesser amounts in combination with dissolved water in the glass making process. Sources of water in the process include alkali-metal hydroxides, steam bubbled into the molten glass, submerged combustion of the glassmelt with H2 and O2, the use of hydrocarbon based combustion. Glass quality is not compromised.

Alkali-free aluminum silicate glass, composition for same, and preparation method and application of alkali-free aluminum silicate glass

Novel composite clarifying agent applied to photovoltaic glass and application method of novel composite clarifying agent

Aluminoborosilicate glass and preparation method and application thereof

VITRIFIABLE MIXTURES

Laser glasses with high damage threshold and method of making such glasses

METHOD OF MANUFACTURING GLASS

Method of producing a glass transmissive to ultraviolet radiation

ALKALI-FREE GLASS SUBSTRATE WITH CHEMICAL RESISTANCE USING Sb2O3 AND/OR SnO2 AS REFINER

PURPOSE: An alkali-free glass substrate for display uses is provided, which has chemical resistance by using Sb2O3 and/or SnO2 instead of As2O3 as a glass refiner and increasing beta-OH. CONSTITUTION: The alkali-free glass substrate, substantially containing less than 0.2wt.% of alkali metal oxides such as Li2O, Na2O and K2O, comprises 50-70wt.% of SiO2, 10-25wt.% of Al2O3, 5-20wt.% of B2O3, 1-10wt.% of MgO, 0-15wt.% of CaO, 1-10wt.% of BaO, 1-10wt.% of SrO, 0-5wt.% of ZnO, 0.05-1wt.% of SnO2 and/or 0.05-3wt.% of Sb2O3, 0.4wt.% of As2O3, and less than 0.1wt.% of Cl2. The resultant substrate based on aluminosilicate glass, having more than 0.5m2 of area and 0.485/mm of beta-OH, is widely used for display glasses for PDP and especially LCD, charge-coupled devices, image sensor cover glasses, and so on. © KIPO 2005 ...

DECOMPRESSION DEFOAMATION METHOD OF MELTING GLASS

PURPOSE: A deformation method is provided to improve the efficiency of deformation by repressing the generation of a bubble layer or by destroying or decreasing the generated bubble layer in a short time. CONSTITUTION: The deformation method comprises a step of:introducing a melting glass by a decompression deformation device; performing a deformation process under a certain decompressed state; deriving the melting glass to next step; decreasing or sweeping a bubble layer by supplying a metal compound having over one metal selected from a group of the aluminum, the titanium, the silicon, the zinc, and the magnesium to the surface of the bubble layer formed inside the melting glass at the deformation process. COPYRIGHT 2000 KIPO ...

Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm3 are also described.

ALUMINOBOROSILICATE GLASS AND PREPARATION METHOD AND APPLICATION THEREOF

The present invention relates to the field of glass manufacturing, and discloses aluminoborosilicate glass, and a preparation method and an application thereof. Based on the total weight of components in the composition of the glass, the glass comprises: 33-60 wt % SiO2, 3-10 wt % Al2O3, 10-30 wt % B2O3, 1-15 wt % ZnO+TiO2+Sc2O3, and 7-27 wt % alkali-earth oxide RO, wherein RO is at least one of MgO, CaO, SrO and BaO, and 0.001 wt %≤Sc2O3≤1 wt %. The aluminoborosilicate glass provided in the present invention has advantages including low density, high index of refraction, low thermal expansion coefficient, high thermostability, high flexibility, and easy bending, etc.

Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm3 are also described.

Fining of boroalumino silicate glasses

Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and Sigma[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and Sigma[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.

Selective Chemical Fining of Small Bubbles in Glass

A method of fining glass is disclosed that includes flowing a molten glass bath through a fining chamber. The molten glass bath has an undercurrent that flows beneath a skimmer that is partially submerged in the molten glass bath. One or more fining agents are introduced into the undercurrent of the molten glass bath directly beneath the skimmer from a carrier gas. In this way, the fining agent(s) may selectively target the gas bubbles drawn under the skimmer within the undercurrent of the molten glass bath for removal. The method may be employed to fine molten glass produced in a submerged combustion melter. A fining vessel for fining molten glass is also disclosed.

Vacuum refining of glassy materials with controlled foaming

In the process for refining glass or the like by vacuum, the collapse of foam is expedited by heating the headspace within the vacuum chamber.

Melting glass with oxidation control and lowered emissions

Glass melt, especially of high viscosity, is refined with a high melting refiner which initiates gas bubble formation and growth and which completely dissolves in the melt only at the end of refining

Glass melt refining, using a difficultly soluble, high melting refiner which initiates gas bubble formation and growth and which only completely dissolves in the melt at the end of refining. Preferred Features: The glass has the composition (by wt., on oxide basis) (a) 20-37% SiO2, 8-20% B2O3, 43-55% BaO, 0.01-10% ZnO, 0-7% CaO, 0-7% MgO, 0.01-5% TiO2, 0.01-7% ZrO2, 0.1-10% Al2O3, 0-8% Na2O, 0-8% K2O, 0 to less than 3% La2O3, 0-1% F<-> and 0-3% P2O5, the sum of CaO + MgO being 0-7%, the sum of BaO + ZnO + CaO + MgO being less than 60% and the sum of Na2O + K2O being 0-8%; (b) 73-75.5% SiO2, 8-12% B2O3, 4-7% Al2O3, 5-10% Na2O, 0-4% K2O, 0-3% CaO and 0-3% BaO; (c) 59-61% SiO2, 3-5.5% B2O3, 13.5-15.5% Al2O3, 2.3-5% MgO, 8.2-10.5% CaO, 8.5-9.5% BaO, 0.03-0.3% CeO2, less than 0.02% H2O and less than 0.08% alkali metal oxides, the ratio of (MgO + CaO)/BaO being less than 1.6 and the ratio of CaO/MgO being less than 4.2%; or (d) 50-65% SiO2, 5-15% B2O3, 10-20% Al2O3, 0-10% MgO, 0-20% CaO, 0-20% ...

Verfahren zum Läutern von geschmolzenem Glas unter vermindertem Druck

Zinkoxidhaltiges Borosilicatglas und dessen Verwendungen

PROCEDURE AND DEVICE FOR THE HOMOGENIZATION AND/OR REFINING OF GLASS

ALKALI FREE GLASS SUBSTRATES

VERFAHREN ZUM LAEUTERN VON GLAS

LI2O-A1203-SI02 CRYSTALLIZED GLASS AND CRYSTALLIZABLE GLASS THEREFOR

Li2O-Al2O3-SiO2 crystallized glass is provided which has clarity and glass characteristics equivalent to or superior to a conventional crystalliz ed glass, even when the content of As2O3 is decreased. The Li2O-Al2O3-SiO2 crystallized glass consists essentially of, by weight, 60 to 75% SiO2, 17 to 27% Al2O3, 3 to 5% Li2O, 0 to 0.9% MgO, 0 to 0.9% ZnO, 0.3 to 5% BaO, 0 to 3% Na2O, 0 to 3% K2O, 0 to 4% TiO2, 1 to 4% ZrO2, 0 to 4% P2O5, 0.05 to 2% Sb2O 3, 0 to 0.9% MgO + ZnO, and 0 to 4% Na2O + K2O.

High temperature resistant tempered glass and preparation method thereof

Transparent glass having blue edge color

PROCESS OF FUSION, REFINING AND HOMOGENISATION Of a MASS OF GLASS IN FUSION

L'invention concerne un procédé de fabrication d'une masse de verre en fusion. Pour éviter le bouillonnement d'oxygène le procédé comporte les étapes suivantes : une étape de fusion, une étape d'affinage, une étape d'homogénéisation et de conditionnement, la masse de verre en fusion, avant l'étape d'homogénéisation et de conditionnement, étant réchauffée à une température supérieure à 1700°C, des ions polyvalents étant présents dans la masse de verre en fusion en une quantité d'eau ...

COMPOSITIONS FOR THE MANUFACTURE OF GLASS HAS REDUCED QUANTITY OF CARBONATES AINSIQUE OF SYSTEM REFINING AND PROCEEDED OF PREPARATION OF COMPOSE GLASS

Apparatus for the treatment of textile wire by liquids

Fining of boroalumino silicate glasses

Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

Li2O-Al2O3-SiO2 BASED CRYSTALLIZED GLASS AND PRODUCTION METHOD FOR THE SAME

An object of the present invention is to provide a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass with excellent bubble quality even without using As 2 O 3 or Sb 2 O 3 as a fining agent and a method for producing the same. The Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass of the present invention is a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass which does not substantially comprise As 2 O 3 and Sb 2 O 3 and comprises at least one of Cl, CeO 2 and SnO 2 , and has a S content of not more than 10 ppm in terms of SO 3 .

Arsenic and antimony free, titanium oxide containing borosilicate glass and methods for the production thereof

Titanium oxide containing borosilicate glasses, which have been produced without the use of arsenic and antimony compounds, are provided. An environmentally friendly refining method for providing titanium oxide containing borosilicate glass is also provided. The method includes using oxygen containing selenium compounds as refining agents to provide glasses with good transmittance values in the infrared range and show no disturbing discolorations. The glasses of the present disclosure are particularly suitable for the production of IR light conductors, cover glasses for photo sensors, and UV filters.

METHOD OF MAKING A RED-GLASS VESSEL

In order to provide a method which can produce red glass vessels and which is attended by low cost in respect of the raw materials/starting materials and also in respect of control of process parameters, an appropriate method for producing red glass vessels is proposed in which a colourless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide is produced, where the resultant colourless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5, where glass vessels are moulded from said refined glass composition, and where the glass vessels are cooled to a temperature of below 520 degrees C. to 580 degrees C. 1. A method of making a red-glass container , the method comprising the steps of:making a colorless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide;{'b': 0', '5', '5, 'refining the colorless molten glass composition under neutral conditions with sodium sulphate or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from . to ;'}molding a glass container from the glass composition refined under neutral conditions; andcooling the glass container to a temperature of below 520° C. to 580° C.2. The method according to claim 1 , wherein activated carbon is used as carbon-containing reducing agent.3. The method according to claim 1 , wherein the colorless molten glass composition is made with a content of tin oxide of from 0.2 to 3% by mass and with a content of copper oxide of from 0.06 to 3% by mass.4. The method according to claim 3 , wherein the colorless molten glass composition is made with a content of tin oxide of from 0.5 to 1.5% by mass and with a content of copper oxide of from 0.1 to 0.35% by mass.5052. The method according to claim 1 , wherein the colorless ...

PROCESS AND APPARATUS FOR GLASS MANUFACTURE

An apparatus for manufacturing glass includes a furnace. A doghouse of the furnace receives and melts solid-glass forming material using one or more submerged combustion burners. An elongated tank positioned downstream of the doghouse includes a melting chamber, a refining chamber, and a thermal conditioning. The melting chamber has in inlet through which molten glass is received from the doghouse. The refining chamber is positioned downstream of the melting chamber and receives molten glass from the melting chamber. The thermal conditioning chamber is positioned downstream of the refining chamber and receives molten glass from the refining chamber. Additionally, the thermal conditioning chamber delivers molten glass to a glass forming machine. 1. An apparatus for manufacturing glass including:a doghouse portion of a furnace that receives and melts solid glass-forming materials by application of heat from one or more submerged combustion burners; and a melting chamber at an upstream end of the tank having an inlet through which molten glass is received from the doghouse,', 'a refining chamber downstream of the melting chamber that receives molten glass from the melting chamber, and', 'a thermal conditioning chamber downstream of the refining chamber that receives molten glass from the refining chamber and delivers the molten glass to a glass forming machine., 'an elongated tank downstream of the doghouse including2. The apparatus set forth in claim 1 , wherein the solid glass-forming materials are received in the doghouse via a submerged inlet located below a free surface of the molten glass already in the doghouse.3. The apparatus set forth in claim 1 , wherein the doghouse includes a floor claim 1 , a roof claim 1 , and a sidewall connecting the floor and the roof claim 1 , and wherein the floor claim 1 , roof claim 1 , and sidewall of the doghouse are liquid-cooled such that a solid layer of glass forms on an interior surface thereof during operation of the ...

METHODS FOR PREVENTING BLISTERS IN LAMINATED GLASS ARTICLES AND LAMINATED GLASS ARTICLES FORMED THEREFROM

A method for forming a laminated glass article may include flowing a molten first glass composition having a first RO concentration and a first fining agent with a first fining agent concentration. The method may also include flowing a molten second glass composition having a second RO concentration less than the first RO concentration of the first glass composition and a second fining agent with a second fining agent concentration that is greater than or equal to the first fining agent concentration of the first glass composition. The molten first glass composition may be contacted with the molten second glass composition to form an interface between the molten first glass composition and the molten second glass composition. 1. A laminated glass article comprising:{'sub': '2', 'a first glass layer formed from a first glass composition comprising a first RO concentration and a first fining agent with a first fining agent concentration, wherein R is an element from Group I of the periodic table; and'}{'sub': 2', '2, 'a second glass layer fused to the first glass layer, the second glass layer formed from a second glass composition comprising a second RO concentration less than the first RO concentration of the first glass composition and a second fining agent with a second fining agent concentration that is greater than or equal to the first fining agent concentration of the first glass composition'}{'sup': '+2', 'wherein the first fining agent and the second fining agent are oxides of Sn, and a ratio of Snions to a total concentration of Sn in the first molten glass composition is greater than or equal to about 0.15.'}2. The laminated glass article of claim 1 , wherein a difference between the first RO concentration and the second RO concentration is at least 3 mol %.3. The laminated glass article of claim 1 , wherein the laminated glass article comprises less than 1 blister defect/lb of the laminated glass article.4. The laminated glass article of claim 1 , wherein ...

ULTRAFINE NEPHELINE SYENITE

A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns 138-. (canceled)39. An ultra-fine inorganic powder formed from a quartz free igneous rock , said powder having a controlled maximum particle size in a range where the upper value of the controlled maximum particle size is less than 10 microns and the lower value of the controlled maximum particle size is about 5 microns.40. An ultra-fine inorganic powder as defined in wherein said powder is formed by a dry final grinding process.41. An ultra-fine inorganic powder as defined in wherein said igneous rock is a quartz free silicate rock.42. An ultra-fine inorganic powder as defined in wherein said igneous rock is a quartz free silicate rock.43. An inorganic powder as defined in wherein said igneous rock is nepheline syenite.44. An inorganic powder as defined in wherein said igneous rock is nepheline syenite.45. An inorganic powder as defined in wherein said igneous rock is nepheline syenite.46. An inorganic powder as defined in wherein said igneous rock is nepheline syenite.47. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.48. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.49. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.50. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.51. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.52. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said powder.53. An ultra-fine inorganic powder as defined in wherein the fines have been removed from said ...

Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

SILICATE GLASSES HAVING LOW SEED CONCENTRATION

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cmis also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cmare also described. 1. A silicate glass having a seed concentration of less than about 1 seed/cm , wherein the silicate glass comprises:{'sub': '2', '60-70 mol % SiO;'}{'sub': 2', '3, '6-14 mol % AlO;'}{'sub': 2', '3, '0-3 mol % BO;'}{'sub': '2', '0-1 mol % LiO;'}{'sub': '2', '8-18 mol % NaO;'}{'sub': '2', '0-5 mol % KO;'}0-2.5 mol % CaO;{'sub': '2', 'above 0 to 3 mol % ZrO;'}{'sub': '2', '0-1 mol % SnO; and'}{'sub': '2', '0-1 mol % CeO, wherein'}{'sup': '2', 'sub': 2', '2, '12 mol %>LiO+NaO+KO≦20 mol %,'}{'sub': 2', '3, 'the silicate glass comprises less than 50 ppm AsO, and'}the silicate glass is free of halogens or halides.2. The silicate glass of claim 1 , wherein the silicate glass is free of SnO.3. The silicate glass of claim 1 , wherein the silicate glass comprises 8-12 mol % AlO.4. The silicate glass of claim 1 , wherein the silicate glass further comprises up to about 8 mol % MgO.5. The silicate glass of claim 4 , wherein the silicate glass comprises 0 mol %≦MgO+CaO≦10 mol %.6. The silicate glass of claim 1 , wherein the silicate glass comprises above 0 to 1 mol % LiO.7. The silicate glass of claim 1 , wherein the silicate glass is an ion exchanged silicate glass having a surface compressive stress of at least about 200 MPa and a surface compressive layer having a depth of at least about 30 μm.8. The silicate glass of claim 1 , wherein the silicate ...

Lithium Containing Glass with High Oxidized Iron Content and Method of Making Same

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO. An embodiment of the invention covers a glass made according to the method. 1. (canceled)3. The glass composition according to claim 2 , wherein glass composition comprises cerium oxide in the range of 0.02 to 0.45 wt %.4. The glass composition according to claim 2 , comprising FeO in the range of from 0.001-0.010 wt %.5. The glass composition according to claim 2 , wherein the redox ratio is in the range of from 0.005-0.10.6. A viewing window for infrared equipment comprising glass formed from the glass composition according to .7. The viewing window of claim 6 , wherein the infrared equipment comprises infrared night goggles and/or scopes.8. A device for viewing radiated infrared energy claim 2 , the device comprising a housing having at least one passageway claim 2 , the passageway having a first open end and a second open end claim 2 , a lens system for viewing radiated infrared energy claim 2 , a chemically tempered ballistic glass lens mounted adjacent to one end of the passageway claim 2 , the ballistic glass lens comprising a first surface claim 2 , an opposite second surface and a ...

Selective Chemical Fining of Small Bubbles in Glass

A method of fining glass is disclosed that includes flowing a molten glass bath through a fining chamber. The molten glass bath has an undercurrent that flows beneath a skimmer that is partially submerged in the molten glass bath. One or more fining agents are introduced into the undercurrent of the molten glass bath directly beneath the skimmer from a dissolvable fining material component. In this way, the fining agent(s) may selectively target the gas bubbles drawn under the skimmer within the undercurrent of the molten glass for removal. The method may be employed to fine molten gas produced in a submerged combustion melter. A fining vessel for fining molten glass is also disclosed. 1. A method of fining glass , the method comprising:supplying input molten glass into a fining chamber of a fining vessel, the input molten glass combining with a molten glass bath contained within the fining chamber and introducing entrained gas bubbles into the molten glass bath, the input molten glass having a density and a concentration of gas bubbles;flowing the molten glass bath through the fining chamber in a flow direction, the molten glass bath having an undercurrent that flows beneath a skimmer, which is partially submerged in the molten glass bath, and through a submerged passageway defined in part by the skimmer; andintroducing one or more fining agents into the undercurrent of the molten glass bath directly beneath the skimmer from a dissolvable fining material component.2. The method set forth in claim 1 , wherein introducing one or more fining agents into the undercurrent of the molten glass bath comprises releasing one or more fining agents from the dissolvable fining material component claim 1 , the dissolvable fining material component being supported within the skimmer and having an exposed portion that protrudes beyond a distal free end of the skimmer into the submerged passageway.3. The method set forth in claim 2 , wherein the dissolvable fining material ...

Selective Chemical Fining of Small Bubbles in Glass

A method of fining glass is disclosed that includes flowing a molten glass bath through a fining chamber. The molten glass bath has an undercurrent that flows beneath a skimmer that is partially submerged in the molten glass bath. One or more fining agents are introduced into the undercurrent of the molten glass bath directly beneath the skimmer from a carrier gas. In this way, the fining agent(s) may selectively target the gas bubbles drawn under the skimmer within the undercurrent of the molten glass for removal. The method may be employed to fine molten gas produced in a submerged combustion melter. A fining vessel for fining molten glass is also disclosed. 1. A method of fining glass , the method comprising:supplying input molten glass into a fining chamber of a fining vessel, the input molten glass combining with a molten glass bath contained within the fining chamber and introducing entrained gas bubbles into the molten glass bath, the input molten glass having a density and a concentration of gas bubbles;flowing the molten glass bath through the fining chamber in a flow direction, the molten glass bath having an undercurrent that flows beneath a skimmer, which is partially submerged in the molten glass bath, and through a submerged passageway defined in part by the skimmer; andintroducing a carrier gas into the undercurrent of the molten glass bath directly beneath the skimmer, the carrier gas comprising suspended particles of one or more fining agents.2. The method set forth in claim 1 , wherein the carrier gas includes a main gas that supports the suspended particles of the one or more fining agents.3. The method set forth in claim 2 , wherein the main gas is air or nitrogen.4. The method set forth in claim 1 , wherein the one or more fining agents includes a sulfate that decomposes to release Oand SOfining gases.5. The method set forth in claim 1 , wherein the one or more fining agents includes sodium sulfate claim 1 , CrO claim 1 , WO claim 1 , carbon ...

SURGICAL INSTRUMENT ASSEMBLY INCLUDING AN END EFFECTOR CONFIGURABLE IN DIFFERENT POSITIONS

In a process for manufacturing glass, a mixture of solid glass-forming materials may be melted by application of heat from one or more submerged combustion burners to produce a volume of unrefined molten glass comprising, by volume, 20% to 40% gas bubbles. A refining agent may be introduced into the unrefined molten glass to promote gas bubble removal from the molten glass. The unrefined molten glass including the refining agent may be heated at a temperature in the range of 1200° C. to 1500° C. to produce a volume of refined molten glass. The refined molten glass may comprise, by volume, fewer gas bubbles than the unrefined molten glass. A colorant material may be introduced into the refined molten glass to produce a volume of molten glass having a final desired color. 1. A process for manufacturing glass comprising:providing a glass batch comprising a mixture of solid glass-forming materials;melting the glass batch in a melting chamber by application of heat from one or more submerged combustion burners to produce a volume of unrefined molten glass comprising, by volume, 20% to 40% gas bubbles;directing the unrefined molten glass from the melting chamber into a downstream treatment chamber including a refining section;introducing a refining agent into the unrefined molten glass to promote gas bubble removal from the molten glass; andheating the unrefined molten glass including the refining agent in the refining section of the treatment chamber at a temperature in the range of 1200° C. to 1500° C. to produce a volume of refined molten glass, the refined molten glass comprising, by volume, fewer gas bubbles than the unrefined molten glass.2. The process set forth in wherein the glass batch contains claim 1 , by weight claim 1 , less than 0.1% refining agents selected from the group consisting of: sulfur-containing materials claim 1 , sulfate compounds claim 1 , arsenic oxides claim 1 , antimony oxides claim 1 , cerium oxides claim 1 , and metal halide salts.3. The ...

Utilization of Sulfate in the Fining of Submerged Combustion Melted Glass

A method of producing and fining glass includes monitoring a temperature of a molten glass bath contained within a fining chamber of a fining vessel and, based on the monitored temperature, controlling an amount of a sulfate chemical fining agent added into a glass melt contained within an interior reaction chamber of an upstream submerged combustion melter that feeds the fining vessel. The temperature of the molten glass bath may be determined within a temperature indication zone that encompasses a subsurface portion of the molten glass bath that lies adjacent to a floor of a housing of the fining vessel. By monitoring the temperature of the molten glass bath and controlling the amount of the sulfate chemical fining agent added to the glass melt of the submerged combustion melter, the wasteful use of the sulfate chemical fining agent can be minimized and the fining process rendered more efficient. 1. A method of producing and fining glass , the method comprising:introducing a vitrifiable feedstock material into a glass melt contained within an interior reaction chamber of a submerged combustion melter, the vitrifiable feedstock material comprising glass-forming materials that melt-react to form glass having a disordered oxide-based network;discharging unrefined molten glass from the interior reaction chamber of the submerged combustion melter and delivering an inflow of unrefined molten glass into a fining chamber of a fining vessel, the unrefined molten glass merging with a molten glass bath contained within the fining chamber,monitoring a temperature of the molten glass bath within the fining chamber; andcontrolling an amount of a sulfate chemical fining agent added to the glass melt in the submerged combustion melter based on the temperature of the molten glass bath within the fining chamber.2. The method set forth in claim 1 , further comprising:discharging combustion products from one or more submerged burners directly into the glass melt contained within the ...

Fining Submerged Combustion Glass

A method of fining low-density submerged combustion glass is disclosed. The method involves introducing unfined molten glass produced in a submerged combustion melter into a fining chamber of a downstream fining tank. Additionally, additive particles are also introduced into the fining chamber to release one or more fining agents into the molten glass bath contained in the fining chamber to accelerate the removal of bubbles from the molten glass bath. The fining of the molten glass bath as assisted by the one or more fining agents allows for fined glass to be discharged from the fining tank that has fewer bubbles and a greater density than that of the unfined molten glass introduced into the fining tank. Additive particles that include a physical mixture of a glass reactant material and the fining agent(s) are also disclosed. 1. A method of fining low-density submerged combustion glass , the method comprising:providing a fining tank downstream from a submerged combustion melter, the fining tank having a housing that defines a fining chamber and contains a molten glass bath in the fining chamber, the housing further defining each of a glass inlet, a glass outlet, and an auxiliary access passage, and wherein the molten glass bath flows in a flow direction from the glass inlet to the glass outlet;introducing unfined molten glass produced in the submerged combustion melter into the fining chamber of a fining tank through the glass inlet, the unfined molten glass having a volume percentage of gas bubbles and a density and, upon being introduced into the fining chamber, combining with the molten glass bath;introducing additive particles into the fining chamber of the fining tank through the auxiliary access passage, the additive particles comprising a glass reactant material and one or more fining agents, the one or more fining agents being released into the molten glass bath upon consumption of the additive particles in the molten glass bath to thereby accelerate the ...

Lithium Containing Glass with High Oxidized Iron Content and Method of Making Same

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO. An embodiment of the invention covers a glass made according to the method. 1. A method of changing molten glass in a furnace from a molten high infrared absorbing lithium glass composition having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to a molten low infrared absorbing lithium glass composition having FeO in the range of 0.0005 to 0.015 wt % , a redox ratio in the range of 0.005 to 0.10 , comprising:feeding high infrared absorbing glass batch material and a predetermined amount of a first oxidizer to oxidize the FeO to provide the molten low infrared absorbing lithium glass composition; andceasing the practice of the preceding step after a predetermined period of time.2. The method of claim 1 , wherein the first and the second oxidizers are selected from the group of CeOand MnOand mixtures thereof.3. The method of claim 2 , wherein the first and the second oxidizers are each CeO.4. The method of claim 2 , wherein the first and the second oxidizers are each MnO.5. The method according to claim 1 , wherein after the step of feeding the glass batch ...

FINING SUBMERGED COMBUSTION GLASS

A method of of fining low-density submerged combustion glass includes introducing unfined molten glass produced in a submerged combustion melter into a fining chamber of a fining tank and, further, introducing additive particles into the fining chamber that comprise a glass reactant material and one or more fining agents. The one or more fining agents are released into the molten glass bath upon consumption of the additive particles in the molten glass bath to chemically fine the molten glass bath and the glass reactant material includes one or more materials that integrate into the molten glass bath upon melting. Additionally, the method includes discharging fined molten glass out of the fining chamber of the fining tank. The discharged fined molten glass has a volume percentage of gas bubbles that is less than the volume percentage of gas bubbles in the unfined molten glass introduced into the fining chamber. 1. A method of fining low-density submerged combustion glass , the method comprising:introducing unfined molten glass produced in a submerged combustion melter into a fining chamber of a fining tank, the fining tank comprising a housing that defines the fining chamber as well as a glass inlet and a glass outlet, the fining chamber containing a molten glass bath therein that flows in a flow direction from the glass inlet to the glass outlet;introducing additive particles into the fining chamber of the fining tank that comprise a glass reactant material and one or more fining agents, the one or more fining agents being released into the molten glass bath upon consumption of the additive particles in the molten glass bath to chemically fine the molten glass bath, and the glass reactant material comprising one or more materials that integrate into the molten glass bath upon melting; anddischarging fined molten glass out of the fining chamber of the fining tank through the glass outlet, the fined molten glass having a volume percentage of gas bubbles that is less ...

METHOD OF MANUFACTURING A LITHIUM ALUMINOSILICATE GLASS PRODUCT FOR A GLASS-CERAMIC PRODUCT

A method of manufacturing a lithium aluminosilicate glass product suitable for making a glass-ceramic product, includes melting a vitrifiable mixture of raw materials, which are free from arsenic oxides and antimony oxides, apart from unavoidable traces, refining the molten material, cooling the molten material so as to form a glass, forming of the glass, wherein the vitrifiable mixture of raw materials includes petalite having a fraction by weight of total iron, expressed as FeO, less than or equal to 200 ppm. 2. The method as claimed in claim 1 , wherein the mixture of vitrifiable materials is free from arsenic oxides and antimony oxides claim 1 , apart from unavoidable traces.3. The method as claimed in claim 1 , wherein a refining temperature in step b is at most 1700° C.4. The method as claimed in claim 1 , wherein the fraction by weight of said petalite in said vitrifiable mixture of raw materials is at least 50%.5. The method as claimed in claim 1 , wherein said petalite comprises petalite mineral in a fraction by weight greater than or equal to 90%.6. The method as claimed in claim 1 , wherein said petalite has a fraction by weight of total iron claim 1 , expressed as FeO claim 1 , less than or equal to 100 ppm.7. The method as claimed in claim 1 , wherein said petalite has a fraction by weight of fluorine greater than or equal to 0.10%.8. The method as claimed in claim 1 , wherein the mixture of raw materials comprises nitrates of alkali metals or of alkaline earths in a fraction by weight of at most 4%.9. The method as claimed in claim 1 , wherein said vitrifiable mixture of raw materials comprises one or more fining agents selected from SnO claim 1 , CeO claim 1 , MnO claim 1 , fluorides and chlorides.10. The method as claimed in claim 9 , wherein said fining agent is SnO claim 9 , and the fraction by weight of said SnOin the final glass is less than 0.5%.11. The method as claimed in claim 1 , wherein the fraction by weight of total iron claim 1 , ...

ALUMINOSILICATE GLASS, CHEMICALLY STRENGTHENED GLASS, AND APPLICATION

Aluminosilicate glass, chemically strengthened glass, and an application are provided. After the aluminosilicate glass is chemically strengthened, a glass substrate featuring a good mechanical strength and high chemical stability can be obtained, thereby meeting a requirement of cover glass for a glass material. The aluminosilicate glass does not include a B element and a P element, and includes at least silicon oxide, aluminium oxide, alkali metal oxide, and gallium oxide. The alkali metal oxide is at least one of lithium oxide and sodium oxide. The glass is used for production of the cover glass. 1. A composition for forming an aluminosilicate glass plate , comprising:silicon oxide,aluminium oxide,an alkali metal oxide; andgallium oxide,whereinthe aluminosilicate glass does not comprise a boron element and a phosphorus element,the alkali metal oxide comprises lithium oxide, sodium oxide, or a combination thereof, and{'sub': '4', 'the gallium oxide is formed as a four-coordinated [GaO] in the aluminosilicate glass plate.'}2. The composition according to claim 1 , whereina mass percentage of the gallium oxide is greater than 0 and less than or equal to 5%.3. The composition according to claim 1 , whereina mass percentage of the silicon oxide ranges from 45% to 75%, and a mass percentage of the aluminium oxide ranges from 13% to 25%.4. The composition according to claim 1 , whereina mass percentage of the alkali metal oxide ranges from 3% to 25%.5. The composition according to claim 1 , whereinthe aluminosilicate glass further comprises a fining agent.6. The composition according to claim 5 , whereinthe fining agent is any one of tin oxide, sulfur oxide, fluoride, and cerium oxide.7. The composition according to claim 6 , whereinwhen the fining agent is the tin oxide, a mass percentage of the tin oxide is less than or equal to 0.2% in the aluminosilicate glass;when the fining agent is the sulfur oxide, a mass percentage of the sulfur oxide is less than or equal to 0. ...

Li2O-Al2O3-SiO2 BASED CRYSTALLIZED GLASS AND METHOD FOR PRODUCING SAME

In a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass using SnO 2 as a substitute fining agent for As 2 O 3 or Sb 2 O 3 , a crystallized glass having less yellow coloration is provided at low costs. The glass is a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass comprising from 0.01 to 0.9% of SnO 2 in terms of % by mass and having a content of each of As 2 O 3 and Sb 2 O 3 of 1,000 ppm or less as a glass composition, which has a V 2 O 5 content of from 0.08 to 15 ppm in the glass composition.

METHODS FOR PREVENTING BLISTERS IN LAMINATED GLASS ARTICLES AND LAMINATED GLASS ARTICLES FORMED THEREFROM

A method for forming a laminated glass article may include flowing a molten first glass composition having a first RO concentration and a first fining agent with a first fining agent concentration. The method may also include flowing a molten second glass composition having a second RO concentration less than the first RO concentration of the first glass composition and a second fining agent with a second fining agent concentration that is greater than or equal to the first fining agent concentration of the first glass composition. The molten first glass composition may be contacted with the molten second glass composition to form an interface between the molten first glass composition and the molten second glass composition.

Lithium Containing Glass with High Oxidized Iron Content and Method of Making Same

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO. An embodiment of the invention covers a glass made according to the method. 1. A method of changing molten glass in a furnace from a molten low infrared absorbing glass composition having FeO in the range of 0.0005 to 0.015 wt % , and a redox ratio in the range of 0.005 to 0.15 to a high infrared absorbing glass composition having FeO in the range of 0.02 to 0.05 wt % and a redox ratio in the range of 0.2 to 0.4 , comprising:feeding low infrared absorbing glass batch material and a predetermined amount of a first reducing agent to increase the FeO to provide the molten high infrared absorbing glass composition; andceasing the practice of the preceding step after a predetermined period of time.2. The method according to claim 1 , wherein after the step of feeding the glass batch material claim 1 , the method further comprises adding a second reducing agent to the low infrared absorbing glass batch material in an amount in the range of one to two times the amount of the first reducing agent for a predetermined period of time to increase the FeO in the molten glass in the furnace.3. The method ...

Method for producing a glass article

A method for producing a glass article having high hydrolytic resistance is provided. A glass tube consisting of borosilicate glass and having an Al2O3 content of less than 1 weight-%, a ZrO2 content of 2-12 weight-%, and a glass transition temperature Tg is reshaped into a glass article and is subsequently subjected to a thermal post-treatment. To reduce the alkali release of the glass article, the glass article is subjected to a treatment temperature of TB≥Tg+5° K over a treatment time of tB≥5 min and is subsequently cooled during the thermal post-treatment.

Crystallized glass of three-dimensional shape, chemically strengthened glass of three-dimensional shape, and method for producing crystallized glass of three-dimensional shape and chemically strengthened glass of three-dimensional shape

The present invention provides crystallized glass of three-dimensional shape for easily producing chemically strengthened glass of three-dimensional shape that resists damage and has exceptional transparency. This crystallized glass of three-dimensional shape: contains crystals; has light transmittance in terms of a thickness of 0.8 mm of 80% or higher; and contains 45-74% SiO2, 1-30% Al2O3, 1-25% Li2O, 0-10% Na2O, 0-5% K2O, a total of 0-15% of SnO2 and/or ZrO2, and 0-12% P2O5, these amounts expressing the oxide-based mass percentage.

TRANSPARENT ARTICLES MADE OF GLASS CERAMIC WITH HIGH SURFACE QUALITY AND METHODS PRODUCING

A transparent article made of glass ceramic with high surface quality as well as a method producing are provided. The article is suitable for use as a viewing pane. The method includes the steps of: producing a melt with a raw material composition that is suitable for a ceramization; hot shaping a flat substrate made of ceramizable green glass having two oppositely arranged, essentially flat surfaces from the melt; processing of at least one of the surfaces of the substrate with a smoothing fine-treatment process; ceramizing the substrate to produce the article made of glass ceramic. 1. A method producing a flat , transparent articles made of glass ceramic , comprising:producing a melt with a raw material composition configured for ceramization;hot shaping a flat substrate made of ceramizable green glass having two oppositely arranged, flat surfaces from the melt;processing a first surface of the two flat surfaces with a smoothing fine-treatment process to a waviness of at most 500 μm; andceramizing the flat substrate.2. The method of claim 1 , wherein the step of processing further comprises processing a second surface of the two flat surfaces with the smoothing fine-treatment process to the waviness of at most 500 μm.3. The method of claim 1 , wherein the ceramizable green glass is a lithium aluminosilicate system and/or comprises a nucleating agent selected from a group consisting of TiO claim 1 , ZrO claim 1 , SnO claim 1 , and combinations thereof and/or has a crystalline fraction that is less than 20 vol %.5. The method of claim 4 , wherein the raw material composition further comprises claim 4 , for a water content of 0.01-0.08 wt. % claim 4 , conventional refining agents selected from a group consisting of SbO claim 4 , AsO claim 4 , SnO claim 4 , CeO claim 4 , fluorine claim 4 , bromine claim 4 , and sulfate.6. The method of claim 1 , wherein the step of hot shaping comprises rolling the melt between a pair of rollers that rotate in opposite directions ...

一种降低焦锑酸钠粒度的制备方法

本发明公开了一种降低焦锑酸钠粒度的制备方法，包括以下步骤：步骤(1)：三氧化二锑、双氧水预先进行氧化反应；步骤(2)：步骤(1)反应结束后，向反应体系中投加表面活性剂和氢氧化钠，进行沉淀反应；沉淀反应结束后经固液分离、洗涤、干燥处理，得到细粒径的焦锑酸钠。本发明以三氧化二锑为原料，用双氧水充分氧化三氧化二锑，并加入表面活性剂促进晶粒的细化，然后加入氢氧化钠溶液进行充分反应，所产生的沉淀经洗涤，得到最终产品超细焦锑酸钠。本发明与传统工艺相比，采用先加双氧水氧化，再加氢氧化钠反应；而传统工艺则是先加氢氧化钠，再加双氧水。传统工艺得到的焦锑酸钠粒度一般为40um左右，而本发明在晶粒粒度上有非常大的改善。

玻璃材料

本发明提供一种玻璃材料，其组分以重量百分比表示，含有：SiO 2 ：50～70％；B 2 O 3 ：3～15％；TiO 2 ：0.5～10％；ZnO：1～12％；Al 2 O 3 ：0.5～10％；Na 2 O+K 2 O：5～22％，其中B 2 O 3 /SiO 2 为0.06～0.26，(TiO 2 +ZnO)/Al 2 O 3 为0.5～8.0。通过合理的组分设计，本发明获得的玻璃材料具有较高的光透过率和优异的化学稳定性，满足感光器件封装等领域的应用。

A kind of preparation method of coloured glaze

本发明公开了一种琉璃的制备方法，所述琉璃由以下质量份数的成分构成：石英砂60‑80份、三氧化二铝12‑18份、纯碱24‑36份、硝酸钠3‑5份、颜料1‑3份、澄清剂6‑10份，并采用依次通过混料、熔炼、澄清、成型的加工工艺，本发明能够加快材料的澄清速度，从而有效地提高所制琉璃的澄清度以及透明度，使用价值高。

A kind of coloured glaze tea set improving dark green tea millet paste color

本发明公开了一种提高黑茶茶汤色泽的琉璃茶器，其原料组成为：包括石英砂88‑95份；白玻璃15‑18份；五氧化二钒2‑3份；二氧化锰8‑12份；石墨粉2‑3份；玻璃纤维4‑6份；氧化剂3‑7份；澄清剂3‑4份；着色剂3‑5份；硝酸钾1‑2份；悬浮剂2‑3份；上述份数均为质量份数。本发明茶汤在该配方加工的红色琉璃下颜色更加鲜红艳丽，红中带紫，味更醇喷鼻，其茶的深度发酵历程更充实，更光滑，汤色也更美丽透红，本发明的茶具热度不易挥发，所以对于喝茶很合适。

Fluorescence high transparency azure stone handicraft

本发明涉及一种荧光高透明琉璃工艺品，包括琉璃本体、位于琉璃本体表面的荧光层以及位于荧光层表面的水晶层，琉璃本体由石英砂、纯碱、氧化剂、水溶性有机高分子粘结剂、澄清剂以及填料组成，水溶性有机高分子粘结剂为聚丙烯酸、聚乙烯醇、聚丙烯酰胺、聚乙烯亚胺、乙基纤维素、羟丙基纤维素和壳聚糖中的一种或几种，澄清剂为氯化钾、硝酸钠、甲基纤维素和聚乙烯吡咯烷酮中的一种或几种。本发明的琉璃工艺品可发散出荧光，且透明度高。

Method for producing alkali-free glass plate

Cover glass

본 발명의 커버 유리는 유리 조성 중에 SiO 2 , Al 2 O 3 , B 2 O 3 , Li 2 O, Na 2 O, K 2 O, MgO, CaO, BaO, TiO 2 , Y 2 O 3 , ZrO 2 , P 2 O 5 중 적어도 3성분 이상을 포함하고, 하기 식으로 산출되는 X값이 7400 이상인 것을 특징으로 한다. 또한, X값은 61.1×[SiO 2 ]+174.3×[Al 2 O 3 ]+11.3×[B 2 O 3 ]+124.7×[Li 2 O]-5.2×[Na 2 O]+226.7×[K 2 O]+139.4×[MgO]+117.5×[CaO]+89.6×[BaO]+191.8×[TiO 2 ]+226.7×[Y 2 O 3 ]+157.9×[ZrO 2 ]-42.2×[P 2 O 5 ]로 계산되는 값이다.

Composition for green colored glass

본 발명은 Ce, Co 및 Cr 등의 착색제를 사용하지 않고도, 창문 유리에 적합한 높은 가시광선 투과율을 확보하면서, 태양열선 및 자외선 투과율을 효과적으로 낮추어, 건축물 및 차량의 냉방부하 절감을 도모할 수 있으며, 기포 품질 또한 우수한 녹색 유리 조성물, 그로부터 제조된 녹색 유리 및 녹색 유리 제조방법에 관한 것이다. INDUSTRIAL APPLICABILITY The present invention can reduce the cooling load of buildings and vehicles by effectively lowering the solar radiation and ultraviolet ray transmittance while ensuring a high visible light transmittance suitable for window glass, without using coloring agents such as Ce, Co and Cr, A green glass composition having excellent bubble quality, and a green glass and a green glass manufactured from the green glass composition.

Glass material

本发明提供一种玻璃材料，其组分以重量百分比表示，含有：SiO 2 ：50～70％；B 2 O 3 ：3～15％；TiO 2 ：0.5～10％；ZnO：1～12％；Al 2 O 3 ：0.5～10％；Na 2 O+K 2 O：5～22％，其中B 2 O 3 /SiO 2 为0.06～0.26，(TiO 2 +ZnO)/Al 2 O 3 为0.5～8.0。通过合理的组分设计，本发明获得的玻璃材料具有较高的光透过率和优异的化学稳定性，满足感光器件封装等领域的应用。

Water-enhanced sulfate refining process to reduce toxic emissions from glass melting furnaces

본 발명은 Na 2 SO 4 , As 2 O 5 또는 Sb 2 O 5 와 같은 통상적인 배치 정련제를 소량으로 용해된 물과 함께 유리 제조 공정중에 사용하여 독성물 방출량을 감소시키는 유리제조 방법에 관한 것이다. 공정중에 물의 공급원은 알칼리-금속산화몰, 용융된 유리내로 주입되는 증기, H 2 및 0 2 와 유리 용융물과의 액중 연소, 탄화수소 기초된 연소법의 이용을 포함한다. 본 발명의 방법은 품질에는 영향을 주지 않는다.

Medium borosilicate glass clarifying agent

本公开涉及一种中硼硅玻璃用澄清剂，所述澄清剂含有NaCl、CaF 2 、NaSiF 6 和可选地CeO 2 ；其中，相对于100重量份的玻璃用澄清剂，所述玻璃用澄清剂中NaCl的含量大于30重量份，CaF 2 的含量小于50重量份，NaSiF 6 的含量小于20重量份，CeO 2 的含量小于5重量份；NaCl、CaF 2 和NaSiF 6 的总含量大于95重量份；NaCl与CaF 2 的重量比为(0.6‑1.8)：1，CaF 2 与NaSiF 6 的重量比为(0.2‑4)：1。本公开中玻璃澄清剂采用特定组分，能够制备得到少气泡且性质优良的中硼硅玻璃，有效提高澄清效果，改善玻璃成品的光滑程度。

Alkali-containing aluminosilicate glass, product, strengthening method and application thereof

本发明一种含碱铝硅酸盐玻璃及其制品、强化方法和应用，所述方法将含碱铝硅酸盐玻璃在350～450℃的硝酸钠和硝酸钾的盐浴中依次进行两次离子交换，得到化学强化的铝硅酸盐玻璃制品；所述玻璃的组分包括，SiO 2 52％～68％，Al 2 O 3 10％～23％，Na 2 O 8％～13％，Li 2 O 0～6％，P 2 O 5 2％～5％，ZrO 2 0～5％，ZnO 0～3％；所述玻璃经化学强化后的玻璃制品表面压应力>600MPa，应力层压缩深度>50μm，抗弯强度>600MPa，维氏硬度>600MPa；在电子装置中的应用时，包含本发明所述经化学强化的含碱铝硅酸盐玻璃制品。

cover glass

本発明のカバーガラスは、ガラス組成中に、ＳｉＯ２、Ａｌ２Ｏ３、Ｂ２Ｏ３、Ｌｉ２Ｏ、Ｎａ２Ｏ、Ｋ２Ｏ、ＭｇＯ、ＣａＯ、ＢａＯ、ＴｉＯ２、Ｙ２Ｏ３、ＺｒＯ２、Ｐ２Ｏ５の内、少なくとも３成分以上を含み、下記式で算出されるＸ値が７４００以上であることを特徴とする。なお、Ｘ値は、６１．１×［ＳｉＯ２］＋１７４．３×［Ａｌ２Ｏ３］＋１１．３×［Ｂ２Ｏ３］＋１２４．７×［Ｌｉ２Ｏ］−５．２×［Ｎａ２Ｏ］＋２２６．７×［Ｋ２Ｏ］＋１３９．４×［ＭｇＯ］＋１１７．５×［ＣａＯ］＋８９．６×［ＢａＯ］＋１９１．８×［ＴｉＯ２］＋２２６．７×［Ｙ２Ｏ３］＋１５７．９×［ＺｒＯ２］−４２．２×［Ｐ２Ｏ５］で計算される値である。 The cover glass of the present invention contains at least three or more components of SiO2, Al2O3, B2O3, Li2O, Na2O, K2O, MgO, CaO, BaO, TiO2, Y2O3, ZrO2, and P2O5 in the glass composition, and is represented by the following formula. The calculated X value is 7400 or more. The X value is 61.1 x [SiO2] +174.3 x [Al2O3] + 11.3 x [B2O3] +124.7 x [Li2O] -5.2 x [Na2O] +226.7 x [K2O] +139. .4 x [MgO] +117.5 x [CaO] +89.6 x [BaO] +191.8 x [TiO2] +226.7 x [Y2O3] +157.9 x [ZrO2] -42.2 x [P2O5] It is a calculated value.

Arsenic-free tempered glass and preparation method thereof

本发明公开了一种钢化无砷玻璃及其制备方法。一种钢化无砷玻璃，是由包括以下重量份的各组分为原料制备的：石英砂50、锂长石6‑18、煤矸石10‑15、三氧化二铝5‑8、方解石13‑16、白云石8‑12、硝酸钠1‑3、萤石1‑2、氟硅酸钠2‑2.5、纯碱10‑15、硫酸钠0.7、硫酸钙0.5、氧化铈0.4、脱色剂0.2‑0.4。本发明砷含量远低于国家规定的溶出允许量，对人体无毒副作用，不产生环境污染；在同样的熔化温度下，澄清时间缩短到使用砷锑氧化物所用时间的二分之一，生产效率高。

Formula and preparation method of high-performance ultrathin high-transmittance photovoltaic glass

本发明涉及一种高性能超薄高透光伏玻璃配方及制备方法，包括碎玻璃和配合料，配合料由成份SiO 2 、Na 2 O、CaO、MgO、AL 2 O 3 、SB 2 O 3 组成；所述配合料各组分及重量百分比包括68‑74％的SiO 2 ，12.1‑15.6％的Na 2 O，7.6‑11.1％的CaO，2.5‑4.5％的MgO，0.7‑1.9％的AL 2 O 3 ，0.1‑0.25%的SB 2 O 3 ，该方案具备性能稳定、易排泡、高透过率、高强度、低成本的的优点，解决了现有的玻璃加工过程中容易出现气泡高发、厚薄差等各种玻璃缺陷问题。

Alkali-free glass substrate and preparation method thereof

本发明公开了一种无碱玻璃基板及其制备方法。所述无碱玻璃基板在浓度为10重量％的HF溶液中的侵蚀量小于5.5mg/cm 2 ，以其组成中各组分总摩尔量为基准，其组成包括：70‑74mol％的SiO 2 、11‑14mol％的Al 2 O 3 、0‑2.5mol％的ZnO、10‑17mol％的RO和0.01‑2mol％的RE 2 O 3 ，其中，RO为MgO、CaO、SrO和BaO中的至少一种；RE 2 O 3 为Y 2 O 3 、La 2 O 3 、Gd 2 O 3 、Ce 2 O 3 、Yb 2 O 3 和Lu 2 O 3 中的至少一种。所述制备方法包括：将各组分混合后依次进行熔融、脱泡、均质化、成型、冷却、切割、抛光、洗涤和烘干。所述无碱玻璃基板具有优异的综合性能。

A kind of aubergine glass and its preparation method that once develops the color

本发明涉及一种紫红色玻璃及其制备方法，所述紫红色玻璃中各组分的质量百分含量分别为：SiO 2 58.0～65.0％，B 2 O 3 2.5～5.0％，Na 2 O 3.5～6.0％，K 2 O 11.0～16.0％，CaO 2.5～6.0％，BaO 0～2.5％，ZnO 6.0～13.5％，SnO 2 0.3～1.0％，Sb 2 O 3 0.1～0.5％，Au 0.008～0.03％，Se 0.01～0.5％。本发明以Au和Se作为着色剂，可使玻璃在较低温度下显色，减少二次热处理显色的工序，降低玻璃制品因高温显色而变形的可能性。ZnO和SnO 2 还可用于提高Au在玻璃中的溶解度，改善着色效果，降低了玻璃的生产成本。

Glass ceramic having specific thermal expansion characteristics

본 발명은 열 팽창 특성이 개선된 유리 세라믹 및 정밀 부품에서의 이의 용도에 관한 것이다.

Transparent LAS glass ceramics produced with alternative environmentally acceptable fining agents

本发明涉及使用可选择的环境可接受的澄清剂制备的透明LAS玻璃陶瓷。具体地，本发明涉及具有低的热膨胀性的透明玻璃陶瓷。该玻璃陶瓷仅包含环境可接受的澄清剂或通过使用环境可接受的澄清剂制备。特别地，本发明的玻璃陶瓷不包含任何有毒的砷。

Li2O-Al2O3-SiO2 crystal glass and crystallizable glass thereof

本发明涉及一种Li 2 O-Al 2 O 3 -SiO 2 结晶玻璃，即使当As 2 O 3 的含量下降时，也具有与常规结晶玻璃相当或更优异的澄清度和玻璃性能。该Li 2 O-Al 2 O 3 -SiO 2 结晶玻璃主要由60～75%的SiO 2 ，17～27%的Al 2 O 3 ，3～5%的Li 2 O，0～0.9%的MgO，0～0.9%的ZnO，0.3～5%的BaO，0～3%的Na 2 O，0～3%的K 2 O，0～4%的TiO 2 ，1～4%的ZrO 2 ，0～4%的P 2 O 5 ，0.05～2%的Sb 2 O 3 ，0～0.9%的MgO+ZnO，以及0～4%的Na 2 O+K 2 O组成，以重量计。

Transparent alkali-free glass substrate for liquid crystal display

Method and apparatus for making glass substrate

본 발명은, 용융 유리의 청징 공정에 있어서, 용융 유리에 이물이 혼입되는 것을 억제할 수 있는 유리 기판의 제조 방법 등을 제공한다. 유리 원료를 가열하여 용융 유리를 생성하는 용융 공정과, 용융 유리를 청징하는 청징 공정과, 용융 유리로부터 유리 기판을 성형하는 성형 공정을 구비하고, 청징 공정에 있어서, 용융 유리는 백금제 또는 백금 합금제의 청징관의 내부를, 용융 유리의 표면보다 상방의 공간인 기상 공간이 형성되도록 흐르며, 청징관은, 청징관의 외벽면으로부터 외측으로 돌출되어, 기상 공간에 존재하는, 백금을 포함하는 기체가 통과하는 통기관을 갖고, 통기관에는, 기체를 도입하여 계측하기 위한 계측관이 설치되며, 계측관에 접속되어 기체의 산소 농도를 측정하는 산소 농도계를 갖고, 계측관은, 기체를 도입하는 측의 개구 단부의 종단면이 상기 계측관의 길이 방향에 대하여 경사져 있다.

Glass clarifying agent, boroaluminosilicate glass, preparation method of boroaluminosilicate glass, glass substrate and display

本发明涉及一种玻璃澄清剂、硼铝硅酸盐玻璃及其制备方法、玻璃基板和显示器。该玻璃澄清剂由三氧化二镧和二氧化锡组成，且三氧化二镧和二氧化锡的质量比为0.3～1；或者，玻璃澄清剂由三氧化二镧、二氧化锡及二氧化铈组成，且三氧化二镧的质量与二氧化锡和二氧化铈的质量之和的比为0.2～0.6。上述玻璃澄清剂能够制备得到无气泡且性质优良的玻璃，该澄清剂不仅环境友好，还能够改善窑炉的使用寿命。

Method and apparatus for making glass substrate

본 발명은, 용융 유리의 청징 공정에 있어서, 용융 유리에 이물이 혼입되는 것을 억제할 수 있는 유리 기판의 제조 방법 등을 제공한다. 유리 원료를 가열하여 용융 유리를 생성하는 용융 공정과, 용융 유리를 청징하는 청징 공정과, 용융 유리로부터 유리 기판을 성형하는 성형 공정을 구비하고, 청징 공정에 있어서, 용융 유리는 백금제 또는 백금 합금제의 청징관의 내부를, 용융 유리의 표면보다 상방의 공간인 기상 공간이 형성되도록 흐르며, 청징관은, 청징관의 외벽면으로부터 외측으로 돌출되어, 기상 공간에 존재하는, 백금을 포함하는 기체가 통과하는 통기관을 갖고, 통기관에는, 기체를 도입하여 계측하기 위한 계측관이 설치되며, 계측관에 접속되어 기체의 산소 농도를 측정하는 산소 농도계를 갖고, 계측관은, 기체를 도입하는 측의 개구 단부의 종단면이 상기 계측관의 길이 방향에 대하여 경사져 있다. The present invention provides a glass substrate manufacturing method and the like capable of suppressing the incorporation of foreign matter into the molten glass in the finishing step of the molten glass. A melting step of heating the glass raw material to produce molten glass; a refining step of refining the molten glass; and a forming step of molding the glass substrate from the molten glass. In the refining step, the molten glass is platinum or a platinum alloy Wherein the purifying tube is formed so as to flow inside the purifying tube of the purifying tube so as to form a gas-phase space which is a space above the surface of the molten glass, the purifying tube being projected outward from the outer wall surface of the purifying tube, And an oxygen concentration meter connected to the measuring tube for measuring the oxygen concentration of the gas, wherein the measuring tube has an oxygen concentration meter for measuring the concentration of oxygen in the gas, And the longitudinal end face of the opening end is inclined with respect to the longitudinal direction of the measuring tube.

Environment-friendly solar glass powder

本发明涉及太阳能玻璃粉技术领域，尤其涉及一种环保型太阳能玻璃粉，解决现有技术中存在的透光率不高的缺点，包括以下重量份的原料：Si0 2 58～66、B 2 O 3 3.5～5.5、TiO 2 4～5、Al 2 O 3 0.8～1.5、BaO 0.1～0.3、ZrO 2 0.1～0.3、ZnO 0.1～0.3、CeO 2 0.5～0.8、玻璃增强剂1.2～1.5、玻璃澄清剂0.8～1.2、脱色剂0.6～0.8；环保型太阳能玻璃粉的制备方法，包括以下步骤：S1、将Si0 2 和B 2 O 3 加入球磨，研磨120 min；S2、将TiO 2 、Al 2 O 3 、BaO、ZrO 2 和ZnO加入球磨，研磨580min；S3、将CeO 2 、玻璃增强剂、玻璃澄清剂和脱色剂加入球磨，研磨20min，过滤蒸干得环保型太阳能玻璃粉。本发明能够减少太阳能玻璃中的气泡，降低玻璃的着色能力，提高太阳能玻璃的透光率，还能够截止紫外线，延缓太阳能电池的老化。

Glass ceramic ware and preparation method thereof

本发明公开了一种微晶玻璃器皿及其制备方法，由锂铝硅透明微晶玻璃制成，所述锂铝硅透明微晶玻璃的基础组分及摩尔比是：SiO 2 ：58~70mol%；Al 2 O 3 ：18~20 mol%；Li 2 O：7~11 mol%；ZnO：2~4mol%；MgO：2~4mol%；TiO 2 ：0.2~1.0mol%；ZrO 2 ：0.2‑0.8mol%；P 2 O 5 ：0.4‑1.0 mol%；Sb 2 O 3 ：0.2 mol%；各个组分摩尔百分数之和是100%mol。通过调整玻璃基础组成和热处理条件制备以β‑石英固溶体为主晶相的锂铝硅透明微晶玻璃，具有高硬度、低的热膨胀系数、良好的可见光透过率及优异的抗热震性能。利用该方法制备的锂铝硅透明微晶玻璃能够有效降低热处理温度减少能耗，并且保证较好的物理性能特别是抗热震性能，可以广泛的应用于日用玻璃器皿的制备。

Glass, glass-ceramic, articles and fabrication process

본 발명은 (i) 주 결정상으로 β-석영 또는(및) β-스포더멘의 고용체를 함유하는 신규 유리-세라믹 물질; (ⅱ) 상기 신규 유리-세라믹 물질로 제조된 제품; (ⅲ) 상기 신규 유리-세라믹 물질의 전구체인, 리튬 알루미노-실리케이트 유리; 및 (ⅳ) 전술한 신규 유리-세라믹 물질의 제조방법 및 상기 신규 유리-세라믹 물질로 제조된 제품의 제조방법에 관한 것이다. 본 발명은 상기 유리-세라믹 물질 전구체를 파이닝제로서, SnO 2 (0.15 내지 0.3중량%) 및 CeO 2 및/또는 MnO 2 (0.7 내지 1.5중량%)의 용도에 관한 것이다. 유리-세라믹, β-석영, β-스포더멘, 리튬 알루미노-실리케이트 유리 The present invention relates to a novel glass-ceramic material comprising (i) a solid solution of β-quartz or / and β-podermen as the main crystal phase; (Ii) products made from the novel glass-ceramic materials; (Iii) lithium alumino-silicate glass, which is a precursor of the novel glass-ceramic material; And (iii) a method for producing the novel glass-ceramic material described above and a method for producing a product made from the new glass-ceramic material. The present invention relates to the use of SnO 2 (0.15 to 0.3% by weight) and CeO 2 and / or MnO 2 (0.7 to 1.5% by weight) as the fining agent of the glass-ceramic material precursor. Glass-Ceramic, β-Quartz, β-Spodermen, Lithium Alumino-Silicate Glass

Preparation of glass-ceramics of β-quartz and/or of β-spodumene, of articles made from such glass-ceramics ； glass-ceramics, articles made from said glass-ceramics and precursor glasses

본 발명은: β-석영 및/또는 β-소포듀민으로 이루어진 유리-세라믹의 제조방법; 상기 유리-세라믹으로 제조된 물품의 제조방법; β-석영 및/또는 β-소포듀민으로 이루어진 신규한 유리-세라믹; 상기 신규한 유리-세라믹으로 제조된 물품; 및 상기 신규한 유리-세라믹의 전구체인 리튬 알루미노실리케이트 유리에 관한 것이다. 본 발명은 유리-세라믹 유리 전구체의 청징제로서의 불소 및 적어도 하나의 다가 원소 산화물의 결합 사용에 관한 것이다. The present invention provides a method for producing a glass-ceramic consisting of β-quartz and / or β-sofudimin; A method of making an article made of the glass-ceramic; novel free-ceramic consisting of β-quartz and / or β-fodudumin; Articles made of the novel glass-ceramic; And lithium aluminosilicate glass, which is a precursor of the novel glass-ceramic. The present invention relates to the combined use of fluorine and at least one polyvalent element oxide as clarifier of glass-ceramic glass precursors. 유리, 유리-세라믹, 석영, 소포듀민, 리튬 알루미노실리케이트, 불소, 다가 원소 산화물 Glass, glass-ceramic, quartz, sorbodimine, lithium aluminosilicate, fluorine, polyvalent oxide

Borosilicate glass containing zinc oxide

The invention relates to a borosilicate glass containing zinc oxide, which has the following composition (oxide-based in wt. %): 58-67% SiO 2 , 1-5% B 2 O 3 , 0-5% Al 2 O 3 , 8-17% Na 2 O, 0-12% K 2 O, 3-12% MgO, 0-12% CaO, 2-8% ZnO, 1-5% TiO 2 . The glass is particularly suitable for use as a hard disk substrate.

Alkaline earth metal silicate compositions for use in glass manufacture

A granular product for use as a raw material for glass manufacture is composed of at least one alkaline earth metal silicate intimately admixed with at least one alkali metal carbonate or hydroxide. Glass containing fewer gas bubble inclusions and undissolved-particle defects can be produced more readily.

One kind is without arsenic combined oxidation fining agent

本发明公开了一种无砷复合氧化澄清剂，按照重量百分比，组分构成如下：Sb 2 O 3 9.5wt%～15.0 wt%、Na 2 SO 4 33.0 wt%～49.0 wt%、NaNO 3 40.0wt%～55 wt%、Fe 2 O 3 ＜0.006 wt%、NaCl ≤0.35 wt%。本发明的特点在于：把低铁钠钙硅酸盐超白压延玻璃所使用的澄清剂重新设计组合成一种全新的复合组份，其优点在于减少上料环节、节省配料称量时间、节省人力、减轻工人劳动强度、节约了成本外，更重要的是减少了物料飞扬对环境造成的污染、减少了物料的潮解性，提高了澄清剂的化学稳定性。

Lithium containing glass with high oxidized iron content and method of making same

A low infrared absorbing lithium glass Includes FeO in the range of 0.0005-0,015 wt%, more preferably 0.001-0.010 wt%, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0,04 wt% and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material In one embodiment of the invention the oxidizer is CeO 2 . An embodiment of the invention covers a glass made according to the method.

TRANSPARENT VITROCERAMICS OF LITHIUM LOWIUM QUARTZ-BETA

La présente demande a pour objet des vitrocéramiques transparentes, du type aluminosilicate de lithium (LAS), de quartz-β, dont la composition renferme une faible teneur en lithium, les articles constitués au moins en partie desdites vitrocéramiques, les verres précurseurs desdites vitrocéramiques ainsi qu'un procédé d'élaboration desdits articles. Lesdites vitrocéramiques présentent une composition, exprimée en pourcentages en masse d'oxydes, qui renferme : 63 à 67,5 % de SiO2, 18 à 21 % d'Al2O3, 2 à 2,9 % de Li2O, 0 à 1,5 % de MgO, 1 à 3,2 % de ZnO, 0 à 4 % de BaO, 0 à 4 % de SrO, 0 à 2 % de CaO, 2 à 5 % de TiO2, 0 à 3 % de ZrO2, 0 à 1 % de Na2O, 0 à 1 % de K2O, 0 à 5 % de P2O5, avec (0,74 MgO + 0,19 BaO + 0,29 SrO + 0,53 CaO + 0,48 Na2O + 0,32 K2O) / Li2O < 0,9, éventuellement jusqu'à 2 % d'au moins un agent d'affinage, et éventuellement jusqu'à 2 % d'au moins un colorant. The present application relates to transparent vitroceramics, of the lithium aluminosilicate (LAS) type, of quartz-β, the composition of which contains a low lithium content, the articles consisting at least in part of said vitroceramics, the precursor glasses of said vitroceramics as well that a process for the preparation of said articles. Said vitroceramics have a composition, expressed in percentages by mass of oxides, which contains: 63 to 67.5% of SiO2, 18 to 21% of Al2O3, 2 to 2.9% of Li2O, 0 to 1.5% MgO, 1 to 3.2% ZnO, 0 to 4% BaO, 0 to 4% SrO, 0 to 2% CaO, 2 to 5% TiO2, 0 to 3% ZrO2, 0 to 1 % Na2O, 0 to 1% K2O, 0 to 5% P2O5, with (0.74 MgO + 0.19 BaO + 0.29 SrO + 0.53 CaO + 0.48 Na2O + 0.32 K2O) / Li2O <0.9, possibly up to 2% of at least one refining agent, and optionally up to 2% of at least one dye.

BETA-QUARTZ AND / OR BETA SPODUMENE VITROCERAMICS, PRECURSOR GLASSES, ARTICLES THEREOF, VITROCERAMIC PRODUCTS AND ARTICLES

ADVANCED GLASS MANUFACTURING

1514317 Homogenizing or refining glass SAINT-GOBAIN INDUSTRIES 11 Aug 1975 [14 Aug 1974] 33381/75 Heading C1M Molten glass is homogenized and/or refined by heating the glass so that its viscosity is not more than 1000 poises, foaming the molten glass to a volume at least 1À5 times its original volume, and maintaining the viscosity at not more than 1000 poises until the foam collapses. Preferably the glass is foamed by a gas-generating agent (e.g. Na 2 SO 4 ), the molten glass being heated at at least 20‹C. per minute. The foaming may be aided by ultrasonic vibrations. Preferably, solid vitrifiable material in granular or agglomerated form is passed to inclined duct 14 via furnace 13, in each of which the material is melted by burners 20 and 21. Gases from burners 20. 21 pre-heat the solid material in heat exchanger 23. Furnace 13 and duct 14 are cooled through tubes 17. The molten material formed is passed to channel 1 formed of Pt-Rh alloy, and surrounded by alumina insulation material 12. 12a. The molten material is heated, by Pt-Rh electrode 2 (which may be water-cooled) and by Pt-Rh immersed resistance electrode 10, at at least 20‹C./minute so that the molten glass is foamed and collapses before being delivered through tube 6. In a preferred embodiment granules are heated to 1300‹C. in 6 minutes, from 1300‹C. to 1500‹C. at 30‹C./minute, and held at 1500‹C. for about 10 minutes. In an alternative embodiment (Figures 3 and 4, not shown) the channel is supplied with molybdenum electrodes.

GLASS FUSION IN THE PRESENCE OF SULFIDE

Patent FR2521978A1

Verre optique et correcteur. Ce verre possède un indice de réfraction élevé, une constringence élevée et une faible masse volumique, une bonne résistance aux produits chimiques, un bon comportement en cristallisation et peut subir une trempe chimique. Il a la composition suivante en %-poids : 47-75 SiO2, 1-20 B203, 0-10 Al203, 0-5 P205, 0-15 Li2O, 0-10 Na2O, 0-10 K20, 0-20 CaO, 0- 15 MgO, 0-4 SrO, 0-4 BaO, 0-5 ZnO, 1-15 TiO2, 0-8 ZrO2, 0-5 Nb2O5 et 0-5 F. Application principale : verres de lunettes. Optical glass and corrector. This glass has high refractive index, high constringence and low density, good chemical resistance, good crystallization behavior and can undergo chemical tempering. It has the following composition in% -weight: 47-75 SiO2, 1-20 B203, 0-10 Al203, 0-5 P205, 0-15 Li2O, 0-10 Na2O, 0-10 K20, 0-20 CaO, 0- 15 MgO, 0-4 SrO, 0-4 BaO, 0-5 ZnO, 1-15 TiO2, 0-8 ZrO2, 0-5 Nb2O5 and 0-5 F. Main application: spectacle lenses.

Patent FR2456713B1

Borosilicate glass compound for producing glass tubes and use of same for the production of glass tubes and as sleeve for lamps

Es wird eine Glaszusammensetzung und ihre Verwendung zur Herstellung von Glasrohren vorgeschlagen. Die Glasrohre dieser Zusammensetzung eignen sich in besonderer Weise für die Hüllrohre von Fluoreszenzlampen, bei denen eine Phosphorschicht bei Temperaturen bis 700 °C eingebrannt wird. Rohre aus dem erfindungsgemäßen Glas neigen bei ihrer Verarbeitung bei hohen Temperaturen weniger zur Verformung und zum aneinander Kleben. Für die beobachteten Effekte ist u.a. das Molverhältnis von Na 2 O / (Na 2 O + K 2 O) wesentlich, das größer als 0,4 und maximal 0,72 betragen soll. Die Glaszusammensetzung ist in mol% wie folgt: 74-81 SiO 2 ; 8,5-14,5 B 2 O 3 ; 0,5-3,5 Al 2 O 3 ; 1,5-3,5 Na 2 O; 1-2 K 2 O; 0-1 Li 2 O; 0,5-1,5 MgO; 0,5-1,5 CaO; 0-0,6 BaO; 2-3,5 TiO 2 ; 0-1 ZrO 2 ; 0-0,15 Sb 2 O 3 ; 0-0,5 CeO 2 ; 0-0,5 SnO 2 .

Continuously melting glass precursor to form silico-sodo-calcic glass substrate or lithium aluminosilicate type vitroceramic, by charging first powdery material, refining and cooling the material, and bubbling oxidant gas in glass bath

The continuous melting process comprises charging a first powdery material to obtain a glass bath by fusion, refining and then cooling the material, and bubbling an oxidant gas in the glass bath. The bubbles created during the bubbling of the oxidant gas have a diameter of 1-2 cm. The quantity of total oxygen introduced in the glass bath is 0.1-5 l/kg of glass. The oxidant gas is bubbled through a perforated metal part having several holes, and through a porous refractory ceramic part. The glass has a viscosity of 300-600 Pas during bubbling, and redox of 0.08-0.05. The continuous melting process comprises charging a first powdery material to obtain a glass bath by fusion, refining and then cooling the material, and bubbling an oxidant gas in the glass bath. The bubbles created during the bubbling of the oxidant gas have a diameter of 1-2 cm. The quantity of total oxygen introduced in the glass bath is 0.1-5 l/kg of glass. The oxidant gas is bubbled through a perforated metal part having several holes, and through a porous refractory ceramic part. The glass has a viscosity of 300-600 Pas during bubbling, and redox of 0.08-0.05. A reducer associated with a sulfate is added to the powdery material. An independent claim is included for a silico-sodo-calcic glass substrate or a colorless lithium aluminosilicate type vitroceramic.

Patent FR2521978B1

Alkali-free aluminoborosilicate glass, its use and process for its preparation

The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight , based an oxide): Si02>60 - 65; 8,0, 6.5 - 9.5; A1203 14 - 21; Mg0 1 - 8; Ca0 1 - 6 ; sr0 1 - 9 ; Ba0 0.1 - 3.5; with Mg0 + Ca0 + Sr0 + Ba0 8 - 16 ; . Zr02 0.1 - 1.5 ; Sn02 0,1 - 1; TiO2 0.1 - 1; CeO2 0.01 -1. The glass is particularly suitable for use as a substrate glass in display technology.

Method for clarifying molten glass

METHOD AND APPARATUS FOR HOMOGENIZATION AND / OR GLASSING

Patent FR2281902B1

1514317 Homogenizing or refining glass SAINT-GOBAIN INDUSTRIES 11 Aug 1975 [14 Aug 1974] 33381/75 Heading C1M Molten glass is homogenized and/or refined by heating the glass so that its viscosity is not more than 1000 poises, foaming the molten glass to a volume at least 1À5 times its original volume, and maintaining the viscosity at not more than 1000 poises until the foam collapses. Preferably the glass is foamed by a gas-generating agent (e.g. Na 2 SO 4 ), the molten glass being heated at at least 20‹C. per minute. The foaming may be aided by ultrasonic vibrations. Preferably, solid vitrifiable material in granular or agglomerated form is passed to inclined duct 14 via furnace 13, in each of which the material is melted by burners 20 and 21. Gases from burners 20. 21 pre-heat the solid material in heat exchanger 23. Furnace 13 and duct 14 are cooled through tubes 17. The molten material formed is passed to channel 1 formed of Pt-Rh alloy, and surrounded by alumina insulation material 12. 12a. The molten material is heated, by Pt-Rh electrode 2 (which may be water-cooled) and by Pt-Rh immersed resistance electrode 10, at at least 20‹C./minute so that the molten glass is foamed and collapses before being delivered through tube 6. In a preferred embodiment granules are heated to 1300‹C. in 6 minutes, from 1300‹C. to 1500‹C. at 30‹C./minute, and held at 1500‹C. for about 10 minutes. In an alternative embodiment (Figures 3 and 4, not shown) the channel is supplied with molybdenum electrodes.

A kind of water purifier glass container and preparation method thereof

本发明公开了一种净水器用玻璃容器及其制备方法，所述玻璃容器由按照重量份数计的以下组分组成：氧化硼为2‑5份，氧化钠为3‑15份，氧化铁为0.1‑6份，氧化氟为0.1‑1.5份，氧化镁为6‑21份，氧化铝为8‑35份，氧化钙为6‑38份，氧化硅为10‑85份，按照设定比例配好各原料的份量，然后将所有原料混合在一起搅拌均匀，然后将材料装入大料管或料仓中；加热升温，使温度达到1700‑1800℃，在该温度下保持30分钟‑1小时，再降温至1400‑1500℃得到玻璃液，再均化，澄清，排出气泡，形成可流动的熔融体；成型处理，对熔融体进行成型处理，经退火、冷却后即得到成品的玻璃，该玻璃吸水率在0.1‑0.4％的范围内，该玻璃的抗折强度达80‑200MPa。本发明制备得到的玻璃内部气泡含量较低，更加环保节能。

Raw materials for glass making and method of making them

This invention produces a batch of raw materials for glass making having a greatly increased speed of fusion and fining, by mixing a glass sand with quicklime and/or calcined dolomite and with caustic alkali with or without alkali metal salts. The batch may be made as a powder, a paste or may be formed into granules and dried. The batches can be stored without hardening.

It is a kind of with high strain-point, can fast ion exchange and weak acid resistant zinc phosphorus alumina silicate glass

本发明公开了一种具有高应变点、可快速离子交换和耐弱酸性的锌磷铝硅酸盐玻璃，以质量分数计，所述玻璃包含的组分为：SiO 2 56～65%，Al 2 O 3 17～22%，Na 2 O 10～16%，K 2 O 0～1%，Li 2 O 0～1%，P 2 O 5 0～5%，B 2 O 3 0～2%，MgO 0～0.5%，ZnO 1~8%，TiO 2 0～1%，SrO 0～0.5%，SnO 2 0～0.5%，CeO 2 0～0.5%，各组分之和为100%；所述玻璃的应变点温度≥580℃,压缩应力值≥900MPa，压缩应力层≥35μm。本发明通过优化玻璃组成，获得具有高压缩应力值和高压缩应力层，并且可耐弱酸性的玻璃。

A kind of preparation method of nickel slag microcrystalline glass

本发明公开了一种镍渣微晶玻璃的制备方法，设定各氧化物的质量百分比范围为：Al 2 O 3 ：7~12；MgO：10~20；CaO：8~5；SiO 2 ：48~52；基础玻璃配合比范围为：镍渣30~34%，粉煤灰27~33%，硅砂8~10%，萤石9~11%，澄清剂8~11%，形核剂3~6%，还原剂3~4%；采用熔融法制备基础玻璃液，同时实现镍渣中铁的还原与回收；然后采用一步法微晶化热处理制备镍渣微晶玻璃。本发明以镍渣为主要原料可以制备性能优良的微晶玻璃；镍渣的掺入量高达30%以上，可以大量消耗镍渣，减少废弃资源的浪费；在制造镍渣的同时可以实现铁的还原和分离，进一步提高了有效资源的回收和再利用。

A kind of float process leaded light glass sheet compound clarifier

本发明属于浮法玻璃制造技术领域，具体涉及一种浮法生产导光板玻璃用复合澄清剂。提出的一种浮法生产导光板玻璃用复合澄清剂用于浮法工艺生产导光板玻璃；每100g导光板玻璃中所加入复合澄清剂的量为2.5‑6g；所述复合澄清剂的原料组成及重量百分比为：稀释剂45‑80%，硫酸盐0.4‑1%，硝酸盐21‑47%，氧化铈1‑3%。本发明所提供的为一种复合澄清剂，比单一澄清剂具有更好的澄清脱色效果，可以更好的用于浮法玻璃工艺以及用这种工艺生产导光板玻璃，解决了浮法生产导光板玻璃过程中气泡难以消除的问题。

A method for manufacturing a glass substrate, and a manufacturing apparatus for a glass substrate

Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

Glass substrate

本发明的技术的课题在于：通过创造生产性(尤其耐失透性)优异，并且对HF系药液的蚀刻速率快，且应变点高的无碱玻璃，而使玻璃基板的制造成本低廉化，从而在显示器面板的制造工序中，提高薄型化的效率，且减少玻璃基板的热收缩。为了解决所述课题，本发明的玻璃基板的特征在于，作为玻璃组成，以摩尔％计含有65％～75％的SiO 2 、11％～15％的Al 2 O 3 、0～5％的B 2 O 3 、0～5％的MgO、0～10％的CaO、0～5％的SrO、0～6％的BaO、以及0.01％～5％的P 2 O 5 ，摩尔比(MgO+CaO+SrO+BaO)/Al 2 O 3 为0.7～1.5。

Method for producing glass, optical glass, glass material for press molding, optical element and methods for producing same

A process for producing a glass in the production of a glass molded article formed of an optical glass by melting and clarifying a glass raw material to prepare a molten glass and molding said molten glass, the process comprising preparing a glass raw material that gives an oxide glass comprising, by cationic %, 12 to 65 % of B 3+ , 0 to 20 % of Si 4+ , 0 to 6 % of Ge 4+ , 15 to 50 % of total of La 3+ , Gd 3+ , Y 3+ , Yb 3+ , Sc 3+ and Lu 3+ , 4 to 54 % of total of Ta 5+ , Zr 4+ , Ti 4+ , Nb 5+ , W 6+ and Bi 3+ , 0 to 35 % of Zn 2+ , 0 to 9 % of total of Li + , Na + and K + , and 0 to 15 % of total of Mg 2+ , Ca 2+ , Sr 2+ and Ba 2+ , a total content of said cationic components in the oxide glass being 99 to 100 %, and said glass raw material comprising carbonate and sulfate.

Environment friendly heavy-lanthanide flint optical glass

本发明公开了一种环保重镧火石光学玻璃，其化学成分的重量份数为：SiO 2 ：1.00～5.00份、B 2 O 3 ：10.00～27.00份、La 2 O 3 ：17.00～40.00份、Nb 2 O 5 ：2.00～20.00份、TiO 2 ：0～11.00份、ZrO 2 ：3.00～7.00份、Ta 2 O 5 ：0～6.00份、Gd 2 O 3 ：0～22.00份、WO 3 ：0～7.00份、ZnO：0～25.00份、Sb 2 O 5 ：0～0.50份、R 2 O：0～2.00份、R'O：0～22.50份，其中，所述R 2 O为Li 2 O、Na 2 O、K 2 O中的一种、两种或者三种，所述R'O为CaO、BaO、SrO中的一种、两种或者三种。本发明产品的折射率为(nd)为1.80～1.90、阿贝数(vd)为25～33，有着很好的光学性能、优异的耐失透性、良好的熔融成型性能，并且具有实现连续熔制的结晶稳定性。

Plate glass with high cullet content and preparation method thereof

本发明公布了一种高掺碎玻璃的平板玻璃，包括碎玻璃和辅料，其质量份数比为70:30‑90:10，其中，辅料包括硅砂、萤石、白云石、石灰石、纯碱、芒硝、晶化剂、煤粉。大幅度增加了碎玻璃的加入量，实现废物高效利用，同时可解决玻璃的二次重熔时的澄清问题。同时，本发明还公开了一种高掺碎玻璃的平板玻璃的制备方法，包括预处理、检验、混合、熔融、成型等步骤，用于配合制备高掺碎玻璃的平板玻璃，降低最高熔化温度，延长窑炉的使用寿命，提高熔融的效率。

Ultrafine nepheline syenite

A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.

Li2O-Al2O3-SiO2-based crystallized glass and Li2O-Al2O3-SiO2-based crystalline glass

A kind of novel glass and its production technology

本发明提供一种新型玻璃及其生产工艺，涉及玻璃生产技术领域，玻璃是由以下重量份的原料制成：石英砂50‑70份、纯碱15‑20份、方解石2‑8份、钠长石2‑8份、石灰石2‑6份、高岭土3‑6份、白云石1‑6份、氧化物澄清剂0.2‑0.6份，生产工艺包括以下步骤：(1)原料预加工、(2)配合料制备、(3)熔料、(4)成型、(5)退火；本发明解决了现有玻璃及其生产工艺存在着缺少粉碎和干燥处理环节、对原料配方和工艺参数不能够调整和控制、制作的玻璃品质差的问题。

Method for producing clear glass or clear drawn glass by utilizing special refining process

本发明涉及应用特定澄清方法制备透明玻璃或透明拉制玻璃的方法，具体涉及一种用于制备透明拉制玻璃或透明玻璃的方法，所述方法包括如下步骤：(a)在获得玻璃混合配料熔体的情况下，熔化原料；(b)对所获得的玻璃混合配料熔体进行澄清；(c)对所获得的玻璃混合配料熔体进行均质化，以及(d)在应用拉制方法的情况下，制备玻璃产品，其中，作为澄清剂以限定的量使用如下的硫酸盐澄清剂，所述硫酸盐澄清剂选自碱金属硫酸盐、碱土金属硫酸盐或它们的混合物，并且在对玻璃混合配料熔体进行澄清时使用预先限定的澄清温度，与应用仅包含氧化锑或在与一种或多种其他澄清剂组合的情况下包含氧化锑的澄清体系的澄清方法相比，所述预先限定的澄清温度被调整为高出0℃至100℃，优选高出30℃至60℃。利用根据本发明的方法获得的玻璃是具有蓝移的高度透明的玻璃，该玻璃实际上不含夹杂物和气泡，并且具有高光学均质性和高光谱透射率。

A kind of coloured glaze tea set that yellow tea fragrance and millet paste color can be improved

本发明公开了一种可以提高黄茶香气和茶汤色泽的琉璃茶器，其原料组成为：包括石英砂73‑85份；氧化镉6‑10份；复合树脂3‑6份；玻璃纤维3‑6份；滑石粉4‑8份；澄清剂1‑3份；染色助剂2‑4份；香料1‑3份；悬浮剂0.5‑1份；上述份数均为质量份数。本发明配方制作出的琉璃茶器为黄色，与白茶茶汤颜色相似，这样可以增加茶汤的光泽和美观，而且茶器通透，配上茶汤更是有种浑然一体的感觉，茶器因为茶汤温度升高，从而散发微香，与茶汤香气交相辉映，令人心旷神怡。

Three-dimensional crystallized glass, three-dimensional chemically strengthened glass and their manufacturing method

本発明は、傷つきにくく、透明性に優れる３次元形状の化学強化ガラスを容易に製造するための３次元形状結晶化ガラスを提供する。本発明の３次元形状結晶化ガラスは、結晶を含有し、厚さ０．８ｍｍ換算の光透過率が８０％以上であり、酸化物基準の質量％表示で、ＳｉＯ２を４５〜７４％、Ａｌ２Ｏ３を１〜３０％、Ｌｉ２Ｏを１〜２５％、Ｎａ２Ｏを０〜１０％、Ｋ２Ｏを０〜５％、ＳｎＯ２およびＺｒＯ２のいずれか一種以上を合計で０〜１５％、及びＰ２Ｏ５を０〜１２％含有する。 The present invention provides a three-dimensionally shaped crystallized glass for easily producing a three-dimensionally shaped chemically strengthened glass that is not easily scratched and has excellent transparency. The three-dimensional shape crystallized glass of the present invention contains crystals, has a light transmittance of 80% or more in terms of a thickness of 0.8 mm, and has a SiO2 of 45 to 74% and Al2O3 in terms of mass% based on oxides. 1 to 30%, Li2O to 1 to 25%, Na2O to 0 to 10%, K2O to 0 to 5%, one or more of SnO2 and ZrO2 in total 0 to 15%, and P2O5 to 0 to 12%. contains.

Glass articles exhibiting improved breakage performance

本申请涉及展现出改进的破裂性能的玻璃制品。本公开的实施方式属于强化玻璃制品，其包括第一表面和与第一表面相对的第二表面，它们限定了小于约1.1mm的厚度(t)，从第一表面延伸到大于或等于约0.1t的压缩深度(DOC)的压缩应力层，从而当玻璃制品破裂时，其破碎成长宽比小于或等于约5的多块碎片。在一些实施方式中，在用90目SiC颗粒以25psi的压力磨蚀5秒之后，玻璃制品展现出大于或等于约20kgf的等双轴挠曲强度。还揭示了结合本文所述的玻璃制品的装置及其制造方法。

PROCESS FOR HOMOGENIZING AND / OR PURIFYING GLASS AND DEVICE FOR CARRYING OUT THE PROCESS

Low-sulfur glass and preparation method thereof

本发明公开了一种低硫玻璃及其制备方法，所述低硫玻璃的主要原料配方包含石英砂、纯碱、方解石、长石、碳粉和低硫澄清剂，所述低硫澄清剂主要由以下组分组成：SiO 2 15～20％、活性氧化剂20～24％、硫吸收剂5～8％、Al 2 O 3 2～4％、Na 2 O 8～10％、CaO 30～34％、挥发量5～8％、Fe 2 O 3 0.02～0.07％。本发明低硫玻璃配方不含硫、氟和有毒成分，其排放物不会污染环境，环保节能，保障食品安全问题，大大降低了二氧化硫的排放量，二氧化硫的排放量由原来的250～350mg/Nm 3 降到了＜100mg/Nm 3 。