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1.发明申请VERTICAL CRUCIBLE PULLING METHOD FOR PRODUCING A GLASS BODY HAVING A HIGH SILICIC-ACID COMPONENT 有权用于生产具有高硅酸组分的玻璃体的垂直可拉紧方法公开(公告)号：US20150166387A1
公开(公告)日：2015-06-18
申请号：US14569615
申请日：2014-12-12
发明人： Thomas Buckenauer , Remo Pohl , Robert Stenger , Alexander Böhler
CPC分类号： C03B3/00 , C03B5/0336 , C03B5/24 , C03B17/04
摘要： The present invention refers to a method for producing a glass body with high silicic-acid content by drawing a softened glass mass from an elongated, substantially cylindrical crucible in that SiO2 granules are supplied from above into the crucible, the SiO2 granules are heated to a softening temperature, so that the softened glass mass which comprises a melt surface is formed, the softened glass mass is drawn off via a bottom opening of the crucible so as to form a glass strand, and the glass strand is cut to length to obtain the glass body, wherein due to the supply of the SiO2 granules a bulk heap is formed that covers the melt surface in part while leaving a melt edge, and wherein the melt surface is optically detected. To improve the fusion behavior of the granules and to suppress or altogether prevent the formation of a sinter crust, it is suggested according to the invention that during the optical detection of the melt surface the width of at least a sub-section of the melt edge is determined consecutively and is set to a value within a target width range through the supply rate of the SiO2 granules.
摘要翻译： 本发明涉及一种通过从细长的大致圆柱形的坩埚中抽出软化的玻璃物质来制造具有高硅酸含量的玻璃体的方法，其中SiO 2颗粒从上方供应到坩埚中，将SiO 2颗粒加热至 软化温度，从而形成包含熔融表面的软化玻璃块，通过坩埚的底部开口将软化的玻璃物质排出以形成玻璃纤维束，并将玻璃纤维束切割成长度，以获得 玻璃体，其中由于SiO 2颗粒的供应形成了在保留熔体边缘的同时部分地覆盖熔体表面的大量堆，并且其中光学检测了熔体表面。 为了改善颗粒的熔化行为并抑制或完全防止烧结外壳的形成，根据本发明，建议在熔体表面的光学检测期间，熔融边缘的至少一个子部分的宽度 并且通过SiO 2颗粒的供给速度将其设定为目标宽度范围内的值。
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2.发明授权公开(公告)号：US09790116B2
公开(公告)日：2017-10-17
申请号：US14569615
申请日：2014-12-12
发明人： Thomas Buckenauer , Remo Pohl , Robert Stenger , Alexander Böhler
CPC分类号： C03B3/00 , C03B5/0336 , C03B5/24 , C03B17/04
摘要： The present invention refers to a method for producing a glass body with high silicic-acid content by drawing a softened glass mass from an elongated, substantially cylindrical crucible in that SiO2 granules are supplied from above into the crucible, the SiO2 granules are heated to a softening temperature, so that the softened glass mass which comprises a melt surface is formed, the softened glass mass is drawn off via a bottom opening of the crucible so as to form a glass strand, and the glass strand is cut to length to obtain the glass body, wherein due to the supply of the SiO2 granules a bulk heap is formed that covers the melt surface in part while leaving a melt edge, and wherein the melt surface is optically detected. To improve the fusion behavior of the granules and to suppress or altogether prevent the formation of a sinter crust, it is suggested according to the invention that during the optical detection of the melt surface the width of at least a sub-section of the melt edge is determined consecutively and is set to a value within a target width range through the supply rate of the SiO2 granules.
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