公开(公告)号：US20180297888A1

公开(公告)日：2018-10-18

申请号：US15995379

申请日：2018-06-01

申请人： ASAHI GLASS COMPANY, LIMITED ,  TSUBOTA LABORATORY, INC.

发明人： Kensuke NAGAI ,  Tetsuya NAKASHIMA ,  Yutaka KUROIWA ,  Hiroyuki HIJIYA ,  Masamichi TANIDA ,  AKIO KOIKE ,  Manabu NISHIZAWA ,  Kazuo TSUBOTA ,  Toshihide KURIHARA ,  Hidemasa TORII

IPC分类号： C03C4/08 ,  C03C3/095 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/091 ,  G02B5/20

摘要： A wavelength-selective transmissive glass has a light transmittance Tmore than 315 nm and 400 nm or less at a wavelength of more than 315 nm and 400 nm or less represented by the formula shown below of 1% or more in terms of a plate thickness of 6 mm and a light transmittance T315 nm or less at a wavelength of 315 nm or less represented by the formula shown below of 60% or less in terms of a plate thickness of 6 mm. Ak is a weighting factor at a wavelength k (nm) for calculating T (light transmittance) defined in ISO-9050:2003, and Tk is a transmittance at the wavelength k (nm) in terms of a plate thickness of 6 mm: Tmore than 315 nm and 400 nm or less=(Σk=more than 315400 Ak×Tk)/(Σk=more than 315400 Ak) T315 nm or less=(Σk=300315 Ak×Tk)/(Σk=300315 Ak).

公开(公告)号：US20170029320A1

公开(公告)日：2017-02-02

申请号：US15290090

申请日：2016-10-11

申请人： Asahi Glass Company, Limited

发明人： Kensuke NAGAI ,  Yuya SHIMADA ,  Yusuke ARAI

IPC分类号： C03C3/095 ,  C03C4/02 ,  C03C3/087

CPC分类号： C03C3/095 ,  C03B19/02 ,  C03C3/062 ,  C03C3/064 ,  C03C3/078 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/089 ,  C03C3/091 ,  C03C4/02 ,  C03C4/08

摘要： To provide a colored glass plate of which the mass ratio of divalent iron as calculated as Fe2O3 to total iron as calculated as Fe2O3 can be stably maintained at a high level while amber coloring derived from salt cake (Na2SO4) is suppressed by reducing the amount of salt cake used as a refining agent, and which has less bubbles regardless of a small amount of total sulfur as calculated as SO3. A colored glass plate which is made of alkali-containing silica glass containing iron, tin and sulfur, wherein, as represented by mass % based on oxides, the proportion of total sulfur as calculated as SO3 is less than 0.025%, the proportion of divalent iron as calculated as Fe2O3 to total iron as calculated as Fe2O3 is at least 45%, the proportion of divalent tin as calculated as SnO2 to total tin as calculated as SnO2 is at least 0.1% as represented by mol %, and β-OH is at least 0.15 mm−1.

摘要翻译： 为了提供一种着色玻璃板，其以Fe 2 O 3计算的二价铁的质量比以总计铁计算，可以稳定地保持在高水平，而通过减少盐饼（Na 2 SO 4）的琥珀色，抑制 盐饼用作澄清剂，并且与SO 3计算的少量总硫相比，其具有较少的气泡。 由含铁，锡和硫的含碱性硅玻璃制成的有色玻璃板，其中以氧化物为基准的质量％表示，SO 3计算的总硫的比例小于0.025％，二价 以Fe 2 O 3计算为铁的铁按Fe 2 O 3计算为至少45％，作为SnO 2计算的二氧化锡以总锡计算的二价锡的比例以摩尔％表示为至少0.1％，β-OH为 至少0.15mm-1。

公开(公告)号：US20170081232A1

公开(公告)日：2017-03-23

申请号：US15370424

申请日：2016-12-06

申请人： ASAHI GLASS COMPANY, LIMITED

发明人： Shingo URATA ,  Takashi ENOMOTO ,  Kazuhiro Suzuki ,  Kensuke NAGAI

IPC分类号： C03B5/193 ,  C03B5/237 ,  C03B5/225

CPC分类号： C03B5/193 ,  C03B5/2252 ,  C03B5/237 ,  Y02P40/535

摘要： There is provided a process for producing molten glass, which is capable of easily increasing the H2O content in glass melt with excessive generation of convention of the glass melt being reduced.One mode of the process for producing molten glass according to the present invention is characterized to include a material melting step for melting a raw glass material in a melting furnace to prepare glass melt; a water-molecules supply step for supplying a water-molecules supply gas into the glass melt flowing from an upstream end of the melting furnace toward a downstream end of the melting furnace; and a refining step for degassing, under a reduced pressure atmosphere, the glass melt flowing out of the downstream end; wherein a position where the water-molecules supply gas is supplied in the water-molecules supply step includes a first position and a second position from downstream to upstream in a flowing direction of the glass melt in this order; the first position is a position away from both of the upstream end and the downstream end; and the second position is a position closer to the upstream end than a center of a distance between the upstream end and the first position in the flowing direction of the glass melt.

公开(公告)号：US20180222789A1

公开(公告)日：2018-08-09

申请号：US15945144

申请日：2018-04-04

申请人： ASAHI GLASS COMPANY, LIMITED

发明人： Eriko MAEDA ,  Hiroyuki HIJIYA ,  Kensuke NAGAI ,  Tetsuya NAKASHIMA ,  Yutaka KUROIWA

IPC分类号： C03C3/091 ,  C03C3/087 ,  C03C3/085 ,  C03C4/20

摘要： The present invention pertains to a glass for a data storage medium substrate which contains a specific amount of each of SiO2, Al2O3, MgO, CaO, SrO, BaO, Li2O, Na2O, and K2O, in molar percentage based on the oxides, and does not substantially contain B2O3 or ZrO2, wherein the sum of the Li2O, Na2O, and K2O contents (R2O), the molar ratio of the SiO2 content to the Al2O3 content (SiO2/Al2O3), and the molar ratio of the sum of the SiO2 and Al2O3 contents (SiO2+Al2O3) to R2O [(SiO2+Al2O3)/R2O] fall within their specific ranges, formula (1): 90

公开(公告)号：US20160039702A1

公开(公告)日：2016-02-11

申请号：US14920910

申请日：2015-10-23

申请人： ASAHI GLASS COMPANY, LIMITED

发明人： Kensuke NAGAI ,  Hiroaki HAMAMOTO ,  Shuji KABASHIMA

IPC分类号： C03B5/225 ,  C03C3/087 ,  C03B5/43

CPC分类号： C03B5/2252 ,  C03B5/43 ,  C03C3/087 ,  C04B35/101 ,  C04B35/106 ,  C04B2235/3201 ,  C04B2235/3232 ,  C04B2235/3272 ,  C04B2235/3418 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/94 ,  C04B2235/95 ,  C04B2235/96 ,  C04B2235/9607

摘要： There are provided a conduit structure for molten glass, a vacuum degassing apparatus using the conduit structure, and a process for vacuum-degassing molten glass by use of the vacuum degassing apparatus, wherein without using a cooling system, solid thermal insulating materials constituting a backup for the conduit are prevented from being corroded by molten glass oozing out of a joint between adjacent fused cast refractories constituting the conduit, and wherein production cost is reduced.A conduit structure for molten glass, comprising a conduit and a backup disposed around the conduit; the conduit being a hollow pipe made of fused cast refractories disposed in longitudinal and circumferential directions thereof; the backup comprising a refractory layer outside the conduit, and a thermal insulating material layer disposed outside the refractory layer; the refractory layer including a refractory brick layer made by placing refractory bricks along the longitudinal and circumferential directions of the conduit, and a monolithic refractory layer formed by placing a monolithic refractory containing from 30 to 100% of Al2O3 and from 0 to 70% of SiO2 in percent by mass on an oxide basis and sintering the monolithic refractory; the thermal insulating material layer containing a solid thermal insulating material layer made of solid thermal insulating materials disposed along the longitudinal and circumferential directions of the conduit; the fused cast refractories constituting the conduit, the monolithic refractory forming the refractory brick layer and the refractory bricks constituting the refractory brick layer are selected such that the refractory layer contains a portion that has a temperature equal to the flow point of the molten glass when the molten glass passes through the conduit.

摘要翻译： 提供了一种用于熔融玻璃的导管结构，使用导管结构的真空脱气装置，以及使用真空脱气装置对熔融玻璃真空脱气的方法，其中不使用冷却系统构成备用的固体隔热材料 因为防止了由构成导管的相邻熔铸耐火材料之间的接头渗出的熔融玻璃被导管腐蚀，并且其中制造成本降低。 一种用于熔融玻璃的导管结构，包括导管和设置在导管周围的支撑件; 所述导管是由纵向和圆周方向设置的熔铸耐火材料制成的中空管; 所述支撑件包括在所述导管外部的耐火层，以及设置在所述耐火层外部的绝热材料层; 耐火层包括通过沿着导管的纵向和圆周方向放置耐火砖制成的耐火砖层，以及通过放置包含30至100％的Al 2 O 3和0至70％的SiO 2的整体耐火材料而形成的整体耐火层 以氧化物为基准的质量百分比，并烧结整体耐火材料; 所述绝热材料层包含沿着所述导管的纵向和圆周方向设置的由固体绝热材料制成的固体绝热材料层; 构成导管的熔铸耐火材料，形成耐火砖层的整体耐火材料和构成耐火砖层的耐火砖被选择为使得耐火层包含温度等于熔融玻璃的流动点的温度 熔融玻璃通过导管。