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公开(公告)号：US07000432B2
公开(公告)日：2006-02-21
申请号：US10091402
申请日：2002-03-07
申请人： Hajime Itoh , Rei Kitamura , Mitsuyoshi Sakai , Keito Sekine , Misao Okada
发明人： Hajime Itoh , Rei Kitamura , Mitsuyoshi Sakai , Keito Sekine , Misao Okada
IPC分类号： C03B5/16
CPC分类号： C03B5/2252 , C03C1/004 , C03C2201/23 , Y02P40/57
摘要： A process for producing a glass for cathode ray tubes, having a Sb2O3 content of from 0 to 0.19% as represented by mass percentage and containing H2O, which process comprises a step of melting a raw material in an atmosphere under a pressure of P0 to obtain a molten glass, and a step of vacuum degassing the molten glass in an atmosphere under a pressure PA which is lower than P0, wherein the pressure P of the molten glass is made to be at most (6.1 W+0.06) atm in the vacuum degassing step, wherein W is the content of said H2O as represented by mass percentage.
摘要翻译： 一种用于制造阴极射线管玻璃的方法，其具有0至0.19％的Sb 2 O 3含量，以质量百分比表示并含有H 2 该方法包括在空气中在P 0 O 0的压力下熔化原料以获得熔融玻璃的步骤，以及在气氛中对熔融玻璃进行真空脱气的步骤 在低于P <0> 0的压力下，在真空中使熔融玻璃的压力P至多为（6.1W + 0.06）atm 脱气步骤，其中W是以质量百分比表示的所述H 2 O 2的含量。
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公开(公告)号：US07650764B2
公开(公告)日：2010-01-26
申请号：US11086233
申请日：2005-03-23
IPC分类号： C03B5/16
CPC分类号： C03B5/2252 , C03B5/205
摘要： A vacuum degassing apparatus for molten glass includes a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass. The cross sectional area of the path at the upper end portion of the uprising pipe is larger than the cross sectional area of the path at the lower end portion of the uprising pipe.
摘要翻译： 用于熔融玻璃的真空脱气装置包括抽真空以在其中减压的真空外壳; 真空脱气容器，其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管，并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器排出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管。 上升管的上端部的路径的截面积大于上升管的下端部的路径的截面积。
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公开(公告)号：US07007514B2
公开(公告)日：2006-03-07
申请号：US10256014
申请日：2002-09-27
IPC分类号： C03B5/225
CPC分类号： C03B5/2252 , C03B5/205
摘要： A vacuum degassing apparatus for molten glass includes a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass. The cross sectional area of the path at the upper end portion of the uprising pipe is larger than the cross sectional area of the path at the lower end portion of the uprising pipe.
摘要翻译： 用于熔融玻璃的真空脱气装置包括抽真空以在其中减压的真空壳体; 真空脱气容器，其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管，并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器排出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管。 上升管的上端部的路径的截面积大于上升管的下端部的路径的截面积。
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公开(公告)号：US20050160769A1
公开(公告)日：2005-07-28
申请号：US11086233
申请日：2005-03-23
CPC分类号： C03B5/2252 , C03B5/205
摘要： A vacuum degassing apparatus for molten glass, comprising: a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass; wherein the cross sectional area of the path at the upper end portion of said uprising pipe is larger than the cross sectional area of the path at the lower end portion of said uprising pipe.
摘要翻译： 一种用于熔融玻璃的真空脱气装置，包括：抽真空以在其中减压的真空壳体; 真空脱气容器，其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管，并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器中抽出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管; 其特征在于，所述上升管的上端部的通路的截面积大于所述上升管的下端部的路径的截面积。
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5.发明授权Vacuum degassing apparatus, apparatus for producing glass products and process for producing glass products 有权真空除气装置，玻璃制品的制造装置及玻璃制品的制造方法公开(公告)号：US08720229B2
公开(公告)日：2014-05-13
申请号：US12895930
申请日：2010-10-01
IPC分类号： C03B5/225
CPC分类号： C03B5/2252 , C03B5/2257
摘要： A vacuum degassing apparatus having a throughput of at least 200 tons/day without causing problems such as a stagnation of molten glass flow in the molten glass flow path, an increment of flow rate of the molten glass flow in a local area, an excessive increment of pressure loss of the molten glass flow.A vacuum degassing apparatus comprises a vacuum degassing vessel, and an uprising pipe and a downfalling pipe which are connected with the vacuum degassing vessel, wherein the vacuum degassing vessel includes a wide portion for providing a molten glass flow path, and in the wide portion, the proportion W1/L1 of the breadth of molten glass flow path W1 to the length of molten glass flow path L1 is at least 0.2 and that in the vacuum degassing vessel, the breadth of molten glass flow path W2 of the portion connected with the uprising pipe and the breadth of molten glass flow path W3 of the portion connected with the downfalling pipe are narrower than the breadth of molten glass flow path W1 in the wide portion, and the position of the bottom of molten glass flow path of the portion connected with the uprising pipe and the position of the bottom of molten glass flow path of the portion connected with the downfalling pipe are lower than the position of the bottom of molten glass flow path of the wide portion.
摘要翻译： 具有至少200吨/天的生产量的真空脱气装置，不会引起熔融玻璃流道中的熔融玻璃流停滞，局部熔融玻璃流量的增加，过度增量 的熔融玻璃流的压力损失。 真空脱气装置包括真空脱气容器，与真空脱气容器连接的上升管和下降管，其中真空脱气容器包括用于提供熔融玻璃流动路径的宽部分，并且在宽部分中， 熔融玻璃流路W1的宽度与熔融玻璃流路L1的长度的比例W1 / L1为至少0.2，而在真空脱气槽中，与上升部分连接的部分的熔融玻璃流路W2的宽度 管道和与下降管连接的部分的熔融玻璃流动路径W3的宽度比宽部分中的熔融玻璃流动路径W1的宽度窄，并且该部分的熔融玻璃流动路径的底部位置与 上升管和与下降管连接的部分的熔融玻璃流动路径的底部的位置低于熔融玻璃流动路径的底部的位置 的广泛部分。
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