公开(公告)号：US20110197631A1

公开(公告)日：2011-08-18

申请号：US13095431

申请日：2011-04-27

申请人： Toshiaki SUDO ,  Hiroshi KISHI ,  Kouta HASEBE

发明人： Toshiaki SUDO ,  Hiroshi KISHI ,  Kouta HASEBE

IPC分类号： C03B19/09 ,  C03B29/00

CPC分类号： C03B19/095

摘要： Provided is a method of manufacturing a vitreous silica crucible, including: an arc fusing process for fusing the silica powder molded body by using arc flames generated from the plurality of carbon electrodes, wherein the arc fusing process is performed in a state of disposing tips of at least a pair of carbon electrodes of the plurality of carbon electrodes closer to a target surface of the silica powder molded body than other carbon electrode tips, and setting distances from each of the tips of the closer carbon electrodes to the target surface, to be equal, and the arc fusing process is performed by heating and fusing the silica powder molded body while performing fire polishing, which partially removes an inner surface of the silica powder molded body by using arc flames generated by the closer carbon electrodes.

摘要翻译： 本发明提供一种石英玻璃坩埚的制造方法，其特征在于，包括：通过使用由所述多个碳电极产生的电弧火焰来熔融所述二氧化硅粉末成形体的电弧熔合法，其中，所述电弧定影处理以 多个碳电极中的至少一对碳电极比其他碳电极端部更靠近二氧化硅粉末成形体的目标表面，并且将距离更近的碳电极的每个尖端到目标表面的距离设定为 相等，通过在进行火抛光的同时对二氧化硅粉末成形体进行加热熔融来进行电弧定影处理，通过使用由较近的碳电极产生的电弧火来部分除去二氧化硅粉末成形体的内表面。