FUSED QUARTZ TUBING FOR PHARMACEUTICAL PACKAGING AND METHODS FOR MAKING THE SAME
    83.
    发明申请
    FUSED QUARTZ TUBING FOR PHARMACEUTICAL PACKAGING AND METHODS FOR MAKING THE SAME 审中-公开
    用于药物包装的熔融石墨管及其制造方法

    公开(公告)号:US20150218047A1

    公开(公告)日:2015-08-06

    申请号:US14174439

    申请日:2014-02-06

    Abstract: A method for forming high purity silica articles. The high purity silica articles can be particularly suitable for forming packaging such as packaging for pharmaceutical applications. The method for forming high purity silica articles can comprise, in one embodiment, (a) forming a fused quartz melt from a SiO2 raw material; (b) forming a quartz tube from the fused quartz melt; (c) treating the quartz tube with an acid composition; (d) heat treating the quartz tube subsequent to treating with the acid composition; and (e) optionally treating the quartz article with an acid composition subsequent to the heat treating operation. The method can enhance the purity of silica glass articles and products made therefrom.

    Abstract translation: 一种形成高纯度二氧化硅制品的方法。 高纯度二氧化硅制品可以特别适用于形成用于制药应用的包装的包装。 在一个实施方案中,形成高纯度二氧化硅制品的方法可以包括(a)从SiO 2原料形成熔融石英熔体; (b)从熔融石英熔体形成石英管; (c)用酸组合物处理石英管; (d)用酸组合物处理之后对石英管进行热处理; 和(e)任选地在热处理操作之后用酸组合物处理石英制品。 该方法可以提高石英玻璃制品的纯度和由其制成的产品。

    METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS GRANULES
    84.
    发明申请
    METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS GRANULES 有权
    生产合成石英玻璃颗粒的方法

    公开(公告)号:US20150059407A1

    公开(公告)日:2015-03-05

    申请号:US14390991

    申请日:2013-03-20

    Abstract: The production of quartz glass granules comprises the granulation of pyrogenically produced silicic acid and the formation of a SiO2 granulate (9), the drying and cleaning of the SiO2 granulate (9) by heating in an atmosphere containing halogen, and the vitrification of the SiO2 granulate (9) under a treatment gas which contains at least 30% by volume of helium and/or hydrogen. This process is time-consuming and expensive. In order to provide a method which, starting from a porous SiO2 granulate (9), allows the cost-effective production of dense, synthetic quartz glass granules suitable for melting bubble-free components of quartz glass, the invention proposes that the cleaning and vitrification of the SiO2 granulate (9) and a post-treatment of the vitrified quartz glass granules are carried out in each case in a rotary tube (6) of a rotary kiln (1), said rotary tube rotating about a central axis (7), wherein the rotary tube (6) comprises an inner wall made of a ceramic material during vitrification, and wherein the vitrified quartz glass granules are subjected to a post-treatment during a treatment period of at least 10 minutes in an atmosphere which contains less than 20% of helium or hydrogen at a treatment temperature of 300° C. or more.

    Abstract translation: 石英玻璃颗粒的生产包括热解产生的硅酸的成粒和SiO 2颗粒的形成(9),通过在含卤素的气氛中加热来干燥和清洁SiO 2颗粒(9),并且SiO 2的玻璃化 颗粒(9)在含有至少30体积%的氦和/或氢气的处理气体下。 这个过程是耗时且昂贵的。 为了提供从多孔SiO 2颗粒(9)开始的方法,可以成本有效地生产适合于熔化石英玻璃的无气泡组分的致密合成石英玻璃颗粒,本发明提出了清洁和玻璃化 的二氧化硅颗粒(9)的后处理和玻璃化的石英玻璃颗粒的后处理在每种情况下在旋转窑(1)的旋转管(6)中进行,所述旋转管围绕中心轴线(7)旋转, 其中旋转管(6)在玻璃化期间包括由陶瓷材料制成的内壁,并且其中所述玻璃化石英玻璃颗粒在至少10分钟的处理期间在包含小于 在300℃或更高的处理温度下,20%的氦气或氢气。

    Method of molding synthetic silica glass molded body
    86.
    发明授权
    Method of molding synthetic silica glass molded body 有权
    合成石英玻璃成型体的成型方法

    公开(公告)号:US08539793B2

    公开(公告)日:2013-09-24

    申请号:US13567837

    申请日:2012-08-06

    Abstract: A method of molding a synthetic silica glass molded body by accommodating a synthetic silica glass block in a mold provided with a pressing portion, and by pressing the block while heating, the method including: washing the synthetic silica glass block so that a concentration of copper which is present on the surface of the synthetic silica glass block is 2 ng/cm2 or less; heating high purity carbon powders with a content of copper and aluminium; heating the mold at a temperature condition of 1700° C. to 1900° C.; applying the powders before accommodating the block in the mold; and molding the block in a predetermined form by pressing the block while heating within a hold temperature range of 1500° C. to 1700° C., after accommodating the washed block in the mold.

    Abstract translation: 一种合成石英玻璃成型体的成型体,其通过将合成石英玻璃块容纳在具有按压部的模具中,并且在加热的同时加压块而成型,其特征在于,包括:洗涤合成石英玻璃块,使铜 存在于合成石英玻璃块的表面上的浓度为2ng / cm 2以下; 加热含有铜和铝的高纯度碳粉; 在1700℃至1900℃的温度条件下加热模具。 在将块容纳在模具中之前施加粉末; 并且在将洗涤的块体容纳在模具中之后,在1500℃至1700℃的保持温度范围内加热的同时通过压制块将模块成型为预定形式。

    METHOD OF MOLDING SYNTHETIC SILICA GLASS MOLDED BODY
    87.
    发明申请
    METHOD OF MOLDING SYNTHETIC SILICA GLASS MOLDED BODY 有权
    模塑合成二氧化硅玻璃模制体的方法

    公开(公告)号:US20120297833A1

    公开(公告)日:2012-11-29

    申请号:US13567837

    申请日:2012-08-06

    Abstract: A method of molding a synthetic silica glass molded body by accommodating a synthetic silica glass block in a mold provided with a pressing portion, and by pressing the block while heating, the method including: washing the synthetic silica glass block so that a concentration of copper which is present on the surface of the synthetic silica glass block is 2 ng/cm2 or less; heating high purity carbon powders with a content of copper and aluminium; heating the mold at a temperature condition of 1700° C. to 1900° C.; applying the powders before accommodating the block in the mold; and molding the block in a predetermined form by pressing the block while heating within a hold temperature range of 1500° C. to 1700° C., after accommodating the washed block in the mold.

    Abstract translation: 一种合成石英玻璃成型体的成型体,其通过将合成石英玻璃块容纳在具有按压部的模具中,并且在加热的同时加压块而成型,其特征在于,包括:洗涤合成石英玻璃块,使铜 存在于合成石英玻璃块的表面上的浓度为2ng / cm 2以下; 加热含有铜和铝的高纯度碳粉; 在1700℃至1900℃的温度条件下加热模具。 在将块容纳在模具中之前施加粉末; 并且在将洗涤的块体容纳在模具中之后,在1500℃至1700℃的保持温度范围内加热的同时通过压制块将模块成型为预定形式。

    Production process of synthetic quartz glass
    89.
    发明授权
    Production process of synthetic quartz glass 有权
    人造石英玻璃的生产工艺

    公开(公告)号:US07841211B2

    公开(公告)日:2010-11-30

    申请号:US10535935

    申请日:2003-11-28

    Abstract: First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1 or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

    Abstract translation: 首先,提供了杂质少,具有等于或高于天然石英玻璃的高温粘度特性的合成石英玻璃的制造方法,即使在高温环境下也几乎不变形, 特别是高度耐热的合成石英玻璃的生产过程,其不产生气泡并且致密。 其次,提供了通过本发明的制造方法容易获得的高耐热性合成石英玻璃体,特别是不产生气泡的透明或黑色石英玻璃体,具有高红外 吸收率和排放率,对防止碱金属的扩散具有极高的效果。 该方法是制造吸收系数在245nm为0.05cm -1以上的高耐热性石英玻璃体的工序,对二氧化硅多孔体进行还原处理,然后进行烧成,由此形成致密的玻璃 身体。

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