OPTICAL GLASS SILICA SOOT PARTICLES AND METHOD OF MAKING SAME
    21.
    发明申请
    OPTICAL GLASS SILICA SOOT PARTICLES AND METHOD OF MAKING SAME 审中-公开
    光学玻璃硅酸盐颗粒及其制备方法

    公开(公告)号:WO02026647A1

    公开(公告)日:2002-04-04

    申请号:PCT/US2001/029007

    申请日:2001-09-18

    CPC分类号: C03B19/06 C03B19/09 C03B19/12

    摘要: The invention relates to optical quality glass made by vacuum casting very stable, low viscosity aqueous suspension of submicron silica particles. The suspension is a mixture of silica particles and aqueous ammonia, and is characterized by a solid loading of up to 75 weight percent.

    摘要翻译: 本发明涉及通过真空铸造非常稳定,低粘度的亚微米二氧化硅颗粒的水悬浮液制成的光学质量玻璃。 悬浮液是二氧化硅颗粒和氨水的混合物,其特征在于固体负载高达75重量%。

    AQUEOUS INJECTION MOLDING PROCESS FOR GLASS-CERAMIC SENSOR CAPSULE
    22.
    发明申请
    AQUEOUS INJECTION MOLDING PROCESS FOR GLASS-CERAMIC SENSOR CAPSULE 审中-公开
    玻璃陶瓷传感器胶囊的水性注射成型工艺

    公开(公告)号:WO00073229A1

    公开(公告)日:2000-12-07

    申请号:PCT/US2000/014919

    申请日:2000-05-31

    摘要: A low cost aqueous injection molding process for glass and glass-ceramic components is provided. The process begins with a powder comprising SiO2 (42-59 wt. %), Al2O3 (17-35 wt. %), MgO (2-25 wt. %) and also BaO (0-20 wt. %), TiO2 (0-12 wt. %), ZnO (0-10 wt. %), CaO (0-10 wt. %), B2O3 (0-5 wt. %), P2O5 (0-5 wt. %), ZrO2 (0-5 wt. %). The powder is then mixed with a solvent and a gel forming agent to form a mixture which is injected into a mold. Importantly, the mixture is maintained, prior to injection, at a temperature above the gel point of the gel forming agent. The mixture is then cooled in the mold to a temperature below the gel point of the gel forming agent to form a green body. The green body is removed from the mold and sintered to form the glass-ceramic header.

    摘要翻译: 提供了用于玻璃和玻璃 - 陶瓷部件的低成本水性注射成型方法。 该方法开始于包含SiO 2(42-59重量%),Al 2 O 3(17-35重量%),MgO(2-25重量%)和BaO(0-20重量%),TiO 2 0〜10重量%,ZnO(0〜10重量%),CaO(0〜10重量%),B 2 O 3(0〜5重量%),P 2 O 5(0-5重量%),ZrO 2 0-5重量%)。 然后将粉末与溶剂和凝胶形成剂混合以形成注入模具的混合物。 重要的是,混合物在注射之前保持在高于凝胶形成剂凝胶点的温度。 然后将混合物在模具中冷却到低于凝胶形成剂的凝胶点的温度以形成生坯。 将生坯从模具中取出并烧结以形成玻璃陶瓷集管。

    METHOD FOR PRODUCING CLADDING AND DECORATIVE TILES FROM BROKEN GLASS AND MODULAR PLANT FOR THE SERIAL PRODUCTION THEREOF
    23.
    发明申请
    METHOD FOR PRODUCING CLADDING AND DECORATIVE TILES FROM BROKEN GLASS AND MODULAR PLANT FOR THE SERIAL PRODUCTION THEREOF 审中-公开
    从生产玻璃和模块化植物的梯形和装饰板生产其串行生产的方法

    公开(公告)号:WO00073222A1

    公开(公告)日:2000-12-07

    申请号:PCT/RU1999/000385

    申请日:1999-10-15

    摘要: The present invention relates to the production of a vitreous-siliceous material from broken glass which is used for the inner or outer finishing of buildings and structures, floors or for realising artistic decorative panels. The purpose of this invention is to improve the article quality and to increase the yield while reducing the production costs. The method for producing cladding and decorative tiles is characterised in that it involves applying an action on the preform in a first heated and enclosed volume, wherein said action not only consists of the heat supplied from the top by a heater but also consists of a direct gaseous air flow conveying the heat accumulated from the previously molten preform. This flow is supplied from the bottom and, to this end, the bottom of the thermal form is heat- and gas-conducting. This invention also relates to a modular plant for the serial production of said cladding and decorative tiles, wherein said plant includes a thermal cover mounted above a frame so as to be capable of being lifted back. The frame also includes a mechanism mounted therein for lifting the thermal forms towards the thermal cover. Each thermal form includes a lower thermal-insulation lid. The bottom of each thermal form is made of a heat- and gas-conducting material which is porous or comprises reduced-size cells.

    摘要翻译: 本发明涉及用于建筑物和建筑物,地板或实现艺术装饰板的内部或外部整理的碎玻璃的玻璃质硅质材料。 本发明的目的是提高制品质量并提高产量,同时降低生产成本。 制造包层和装饰砖的方法的特征在于其包括在第一加热和封闭体积中对预成型件施加作用,其中所述作用不仅由加热器从顶部供应的热量组成,而且还包括直接 输送从先前熔融的预制件积聚的热量的气态气流。 这种流动从底部供应,为此,热形式的底部是导热和导热的。 本发明还涉及一种用于连续生产所述包层和装饰砖的模块化设备,其中所述设备包括安装在框架上方以便能够被提回的热盖。 框架还包括安装在其中的用于将热形式提升到热罩的机构。 每个热形式包括一个下部隔热盖。 每个热形式的底部由导热材料制成,其是多孔的或包括减小尺寸的电池。

    PRESSABLE LITHIUM DISILICATE GLASS CERAMICS
    24.
    发明申请
    PRESSABLE LITHIUM DISILICATE GLASS CERAMICS 审中-公开
    可压制锂离子玻璃陶瓷

    公开(公告)号:WO00034196A2

    公开(公告)日:2000-06-15

    申请号:PCT/US1999/029260

    申请日:1999-12-10

    摘要: This invention is directed to lithium disilicate (Li2 Si2 O) based glass-ceramics comprising silica, lithium oxide, alumina, phosphorus pentoxide, and optionally potassium oxide or tantalum oxide. The glass-ceramics are useful in the fabrication of single and multi-unit dental restorations (e.g. anterior bridges) made by heat pressing into refractory investment molds produced using lost wax techniques. The glass-ceramics have good pressability, i.e., the ability to be formed into dental articles by heat-pressing using commercially available equipment. In accordance with an embodiment directed to the process of making the glass-ceramics, the starting compositions are melted at about 1200 DEG to about 1600 DEG C, thereafter quenched (e.g., water quenched or roller quenched) or cast into steel molds, or alternately, cooled to the crystallization temperature. The resulting glass is heat-treated to form a glass-ceramic via a one or two step heat-treatment cycle preferably in the temperature range of about 400 DEG to about 1100 DEG C. The resulting glass ceramics are then pulverized into powder and used to form pressable pellets and/or blanks of desired shapes, sizes and structures which are later pressed into dental restorations.

    摘要翻译: 本发明涉及包含二氧化硅,氧化锂,氧化铝,五氧化二磷和任选的氧化钾或氧化钽的二硅酸锂(Li 2 Si 2 O)基玻璃陶瓷。 玻璃陶瓷可用于制造通过热压制成使用失蜡技术生产的难熔投资模具制成的单和多单元牙修复体(例如前桥)。 玻璃陶瓷具有良好的压制性,即通过使用市售设备通过热压成型为牙科用品的能力。 根据涉及制造玻璃陶瓷的方法的实施方案,起始组合物在约1200℃至约1600℃下熔化,然后淬火(例如水淬或辊淬火)或浇铸成钢模,或者交替 ,冷却至结晶温度。 所得玻璃经过一步或两步热处理循环进行热处理以形成玻璃陶瓷,优选在约400至约1100℃的温度范围内。然后将所得的玻璃陶瓷粉碎成粉末,并用于 形成可压制颗粒和/或所需形状,尺寸和结构的坯料,其随后压入牙齿修复体。

    METHOD FOR PRODUCING GLASS GOBLETS, TUMBLERS AND SIMILAR HOLLOW GLASSES, AND CORRESPONDING DEVICE FOR CARRYING OUT SAID METHOD
    27.
    发明申请
    METHOD FOR PRODUCING GLASS GOBLETS, TUMBLERS AND SIMILAR HOLLOW GLASSES, AND CORRESPONDING DEVICE FOR CARRYING OUT SAID METHOD 审中-公开
    用于生产酒杯,玻璃杯和类似中空玻璃和相关设备用于实施过程

    公开(公告)号:WO98054102A1

    公开(公告)日:1998-12-03

    申请号:PCT/EP1998/002931

    申请日:1998-05-19

    摘要: According to known methods and devices for producing hollow glass shapes by mould blowing, the initial glass is prepared in a tank furnace glass melting process. Said tank furnace and the hollow glass production process downstream are directly connected so that a range of undesirable interactions can occur, for example uneven treatment in the tank furnace leading to an unreliable melting quality, restricted fusing of clear glass, uneconomical production due to small batch sizes, etc. The aim of the invention is to provide an economical method of producing hollow glass shaped bodies which can be carried out independently of the tank furnace glass melting process. To this end, the raw glass material join the production process in the form of semi-products (2) which correspond with the product being manufactured (1). Stocks of said semi-products are produced in a separate process and are not heated until immediately before the blowing process, at which point they are heated to the necessary blowing temperature. The semi-product (2) is advantageously cast in an optimised ring-shaped semi-product support (3). Said semi-product support (3) serves to protect the semi-product (2) during transportation and is also a functional component in production i.e. the blowing working ring in the blow mould unit (11). In this regard, a modular structure of the production device guarantees high flexibility in finishings.

    摘要翻译: 在通过吹塑成形制造中空玻璃模制品的已知方法和装置中,原料玻璃是在罐操作的玻璃熔融方法制备的。 此罐操作和后续的中空玻璃器皿的生产工艺被直接彼此连接,使得最多样化种干扰的相互作用发生,例如不均匀的当与波动的熔体品质操作,不限于透明玻璃的熔化过程中,在制造小批量等的低效率。本发明允许经济 制剂,其可以独立地从罐操作玻璃熔过程来操作,中空玻璃成型体通过在产品的形式的玻璃原料要生产(1)调谐的半成品(2)在预先制备在单独的进程和紧接 吹制过程被加热到必要的发泡剂,生产过程中被馈送。 特别有利的是半成品(2)的形状为环状的半成品载体(3)进行了优化倾,其也用作半成品(2)的运输过程中保护和具有功能元件的生产,例如 吹塑成形部的工作吹环(11)。 生产设备的一种模块化结构可确保高度的生产灵活性。

    SINTERED QUARTZ GLASS PRODUCTS AND METHODS FOR MAKING SAME
    29.
    发明申请
    SINTERED QUARTZ GLASS PRODUCTS AND METHODS FOR MAKING SAME 审中-公开
    烧结石英玻璃产品及其制造方法

    公开(公告)号:WO1996000702A1

    公开(公告)日:1996-01-11

    申请号:PCT/US1995009353

    申请日:1995-06-29

    IPC分类号: C03B19/06

    摘要: A quartz glass article is made from a fired porous silica body or preform having internal pores with chemically-bound hydroxyl groups or other surface reactive groups that react with nitrogen. After a nitrogen-containing reducing gas is introduced to those pores, the preform is heated in such manner as to provide the quartz glass with an effective amount of chemically-combined nitrogen, no less than 25 ppm. A minute amount of chemically-combined nitrogen in the high-purity quartz glass is sufficient to provide a tremendous improvement in physical properties and an incredible increase in the resistance to devitrification. In another embodiment the porous silica preform is fired in steam to increase the hydroxyl content and then nitrided in a nitrogen-hydrogen reducing atmosphere.

    摘要翻译: 石英玻璃制品由具有化学键合的羟基或与氮反应的其它表面反应性基团的内部孔的烧制多孔二氧化硅体或预型体制成。 将含氮还原气体引入到这些孔中后,预热体以这样一种方式被加热,从而为石英玻璃提供有效量的不少于25ppm的化学组合氮。 高纯度石英玻璃中的少量化学结合的氮足以提供物理性能的极大改善和耐失透性的惊人增加。 在另一个实施方案中,多孔二氧化硅预制体在蒸汽中焙烧以增加羟基含量,然后在氮 - 氢还原气氛中氮化。