公开(公告)号：US20040123628A1

公开(公告)日：2004-07-01

申请号：US10625574

申请日：2003-07-23

发明人： Ulrike Stoehr ,  Ralf Biertuempfel ,  Wolfgang Semar

IPC分类号： C03B040/00

CPC分类号： C03B11/125 ,  C03B11/08 ,  C03B11/122 ,  C03B40/00

摘要： Methods for press molding a glass body, especially for optical applications, without additional grinding and polishing steps are described. One method is performed with a press mold having an upper mold part, a lower mold part and, if necessary or desired, a ring. In order to improve the quality of the products, especially glass bodies of larger diameters, a voltage is applied across the upper mold part and the lower mold part when the glass body is within the press mold and a pressing force is applied to the glass body when the temperature of the glass body matches the temperature of the press mold. Alternatively, in another method the press mold is cooled after it reaches a predetermined temperature and the pressing force is applied to the glass body in the mold after exceeding the sticking temperature (T0).

摘要翻译： 描述了用于对玻璃体进行压制成型的方法，特别是用于光学应用的方法，而不需要额外的研磨和抛光步骤。 一种方法是用具有上模具部分，下模具部分的压模，如果需要或需要的话进行的。 为了提高产品的质量，特别是较大直径的玻璃体，当玻璃体在压模内时，上模部和下模部分施加电压，并且对玻璃体施加按压力 当玻璃体的温度与压模的温度相匹配时。 或者，在另一方法中，压模在达到预定温度后被冷却，并且在超过粘附温度（T0）之后，将压力施加到模具中的玻璃体上。

公开(公告)号：US20040129024A1

公开(公告)日：2004-07-08

申请号：US10474116

申请日：2003-10-07

发明人： Ulrike Stoehr ,  Olaf Claussen ,  Daniela Seiler ,  Sylvia Biedenbender ,  Gernot Roeth ,  Ralf-Dieter Werner

IPC分类号： C03B040/00

CPC分类号： C03B40/00 ,  C03B11/08 ,  C03B2215/68 ,  Y02P40/57

摘要： The invention relates to a method and a device for reducing the adhesion tendency during the hot forming of a glass body, using at least two moulds, which are positioned on either side of the glass body and are brought into contact with the glass body at a temperature, at which the glass is deformable, whereby the moulds are configured with electrically conductive surfaces. The disadvantage of existing methods and devices is that the moulds have a tendency to adhere to the glass body to be formed and that the surface quality of the glass is impaired. The invention therefore discloses a method, according to which the conductive surfaces of the moulds that come into contact with the glass body are supplied with an alternating current. The device for carrying out said method has electrically conductive mould surfaces, which are connected to an alternating current source. This guarantees that a larger processing window is available as a result of the reduced adhesion tendency, i.e. a greater flexibility in, for example, the temperature, the forming pressure and the duration of contact, achieving an improved glass quality.

摘要翻译： 本发明涉及一种用于降低玻璃体热成型期间粘合倾向的方法和装置，该方法和装置使用至少两个位于玻璃体两侧的模具，并与玻璃体接触 玻璃可变形的温度，由此模具配置有导电表面。 现有方法和装置的缺点是模具具有粘附到要形成的玻璃体的倾向，并且玻璃的表面质量受损。 因此，本发明公开了一种方法，根据该方法，与玻璃体接触的模具的导电表面被提供有交流电流。 用于执行所述方法的装置具有连接到交流电源的导电模具表面。 这确保了由于降低的粘合趋势，即在例如温度，成形压力和接触持续时间中具有更大的灵活性，实现了改进的玻璃质量，可以获得更大的加工窗口。

公开(公告)号：US20040187526A1

公开(公告)日：2004-09-30

申请号：US10806142

申请日：2004-03-23

发明人： Kazuo Shirota ,  Hisatoshi Otsuka ,  Toshiki Imai

IPC分类号： C03B040/00 ,  C03B037/018

CPC分类号： C03B19/1423 ,  F23C2900/9901 ,  F23D14/22 ,  F23D14/32 ,  F23D91/02

摘要： A burner for use in the manufacture of quartz glass is provided, which comprises a triple-tube assembly of a center tube for feeding a silane or siloxane compound, an intermediate tube for feeding oxygen, and an outer tube for feeding hydrogen, a first tubular shell surrounding the triple-tube assembly for feeding hydrogen, a plurality of first nozzles disposed within the first tubular shell for feeding oxygen, a second tubular shell surrounding the first tubular shell for feeding hydrogen, and a plurality of second nozzles disposed within the second tubular shell for feeding oxygen. Synthetic quartz glass ingots having high optical homogeneity are produced.

摘要翻译： 提供了一种用于制造石英玻璃的燃烧器，其包括用于供给硅烷或硅氧烷化合物的中心管的三管组件，用于供给氧的中间管和用于供给氢的外管，第一管 围绕用于供给氢的三重管组件的壳体，设置在第一管状壳体内用于供给氧气的多个第一喷嘴，围绕第一管状壳体供给氢气的第二管状壳体以及设置在第二管状体内的多个第二喷嘴 外壳供氧。 产生具有高光学均匀性的合成石英玻璃锭。

公开(公告)号：US20030046957A1

公开(公告)日：2003-03-13

申请号：US10212593

申请日：2002-08-05

发明人： Christian Kunert ,  Andreas Langsdorf ,  Nobert Greulich-Hickmann

IPC分类号： C03B040/00 ,  C03B018/00

CPC分类号： C03B40/04 ,  C03B11/08 ,  C03B2215/63

摘要： The invention relates to an apparatus for press-forming a molten gob made of meltable material, especially of glass or glass ceramics, into a body of specific shape; with compression moulds which form with each other a form cavity for receiving the gob; the compression moulds consist at least in the zone of the forming surfaces of an open-pore material; the compression moulds are connected to a pressure gas source in order to produce a gas stream which emerges from the forming surfaces. According to the invention, in the open-pore material of the forming surfaces the pores close to the forming surfaces are smaller than the pores remote from the forming surfaces.

摘要翻译： 本发明涉及一种用于将由可熔材料，特别是玻璃或玻璃陶瓷制成的熔融料坯压制成具有特定形状的本体的装置; 具有彼此形成用于接收料滴的形状空腔的压缩模具; 压缩模具至少包括在开孔材料的成形表面的区域中; 压缩模具连接到压力气体源，以产生从成形表面出来的气流。 根据本发明，在成形表面的开孔材料中，靠近成形表面的孔小于远离成型表面的孔。