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公开(公告)号：US20200331789A1
公开(公告)日：2020-10-22
申请号：US16955229
申请日：2018-11-28
发明人： Toru SAKURABAYASHI , Toru HASEGAWA
摘要： Provided is a manufacturing method for a glass article, including: a glass melting step of continuously melting glass raw materials (Gr) in a glass melting furnace (1) by heating (electric heating) through application of a current with an electrode (11) to generate a molten glass (Gm); and a forming step of forming the molten glass (Gm) into a sheet glass by a down-draw method. The glass melting step includes adjusting a water vapor amount in an atmosphere in the glass melting furnace (1) to 15 g/Nm3 or less.
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公开(公告)号：US20200325060A1
公开(公告)日：2020-10-15
申请号：US16955236
申请日：2018-12-14
摘要： A method of manufacturing a glass sheet stably reduces a variation in a thermal shrinkage rate to 15 ppm or less. The method includes a melting step of melting, in an electric melting furnace, a glass batch prepared so as to give glass comprising 3 mass % or less of B2O3, a forming step of forming a molten glass into a sheet-shaped glass, an annealing step of annealing the sheet-shaped glass in an annealing furnace, and a cutting step of cutting the annealed sheet-shaped glass into predetermined dimensions, to thereby obtain a glass sheet having a β-OH value of less than 0.2/mm and a thermal shrinkage rate of 15 ppm or less. The method includes measuring a thermal shrinkage rate of the glass sheet and adjusting a cooling rate of the sheet-shaped glass in the annealing step depending on variation in thermal shrinkage rate with respect to a target value.
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3.发明申请公开(公告)号：US20180141857A1
公开(公告)日：2018-05-24
申请号：US15572977
申请日：2016-04-20
发明人： Toru SAKURABAYASHI
CPC分类号： C03C21/002 , C03B5/225 , C03B5/43 , C03B17/064 , C03C3/093
摘要： A technical object of the present invention is to devise a method in which minute foreign matter of a platinum group element is less liable to be generated when a Na2O-containing glass having high viscosity at high temperature is formed into a sheet shape by an overflow down-draw method. In order to achieve the above-mentioned technical object, a method of manufacturing a tempered glass sheet of the present invention includes: a melting step of melting a glass batch in a melting furnace to provide a molten glass; a fining step of fining the molten glass at a highest temperature of from 1,450° C. to 1,680° C. with a fining vessel formed of a Pt—Rh alloy; a forming step of forming the molten glass into a sheet shape by an overflow down-draw method through use of an alumina-based forming body to provide a glass sheet to be tempered; and an ion exchange treatment step of subjecting the glass sheet to be tempered to ion exchange treatment to provide a tempered glass sheet having a compressive stress layer in a surface.
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公开(公告)号：US20210122658A1
公开(公告)日：2021-04-29
申请号：US16645045
申请日：2018-09-11
发明人： Toru HASEGAWA , Toru SAKURABAYASHI
摘要： A manufacturing method for a glass article includes a supply step of supplying a glass raw material onto a surface of a molten glass accommodated in a melting chamber of a glass melting furnace from a supply unit mounted to a front wall of the melting chamber, and a melting step of melting the supplied glass raw material through heating with an electrode immersed in the molten glass in the melting chamber. The method also includes an outflow step of causing the molten glass to flow outside the melting chamber from an outflow port provided at a rear wall of the melting chamber, wherein 60% to 95% of an area of the surface of the molten glass in the melting chamber is covered with the glass raw material supplied in the supply step.
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公开(公告)号：US20140319001A1
公开(公告)日：2014-10-30
申请号：US14327673
申请日：2014-07-10
发明人： Masahiro TOMAMOTO , Michiharu ETA , Hidetaka ODA , Tatsuya TAKAYA , Yasuo YAMAZAKI , Hiroshi TAKIMOTO , Shinichi ISHIBASHI , Keiji TAKAGI , Daisuke NAGATA , Takahide NAKAMURA , Toru SAKURABAYASHI , Katsutoshi FUJIWARA , Mitsuharu NODA , Yasuhiko OGISO , Takahide FUJII
IPC分类号： B65D85/48
CPC分类号： B65D85/48 , B32B17/064 , B65H2301/4127 , B65H2801/61
摘要： A glass roll includes a glass film formed by a downdraw method. The glass film is wound into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in the forming operation are exposed, and during the winding operation, the glass film is superposed on a separable protective sheet. The protective sheet extends beyond both sides in a width direction of the glass film. The protective sheet can further be wound on an outer peripheral surface of the glass film by winding only the protective sheet from a trailing end of the glass film in a winding direction of the glass film.
摘要翻译： 玻璃辊包括通过下拉法形成的玻璃膜。 在成形操作中形成的玻璃膜的前后玻璃表面暴露的状态下，使用卷绕辊将玻璃膜卷绕成卷，在卷取动作期间，将玻璃膜叠置在可分离的保护片 。 保护片在玻璃膜的宽度方向上延伸超过两侧。 通过在玻璃膜的卷绕方向仅卷绕玻璃膜的后端的保护片，可以进一步将保护片卷绕在玻璃膜的外周面上。
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