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公开(公告)号：EP0173961B1
公开(公告)日：1991-01-23
申请号：EP85110852.2
申请日：1985-08-28
发明人： Seki, Koji , Morishita, Hiroshi , Ohno, Kiyoshi , Yokota, Hiroshi
CPC分类号： C03C1/02 , C03B19/06 , C03B19/09 , C03B19/1065 , C03B20/00 , C03C3/06 , C03C2201/02 , C03C2203/10 , Y10S65/08 , Y10S65/16
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公开(公告)号：EP0173961A3
公开(公告)日：1987-02-04
申请号：EP85110852
申请日：1985-08-28
发明人： Seki, Koji , Morishita, Hiroshi , Ohno, Kiyoshi , Yokota, Hiroshi
CPC分类号： C03C1/02 , C03B19/06 , C03B19/09 , C03B19/1065 , C03B20/00 , C03C3/06 , C03C2201/02 , C03C2203/10 , Y10S65/08 , Y10S65/16
摘要： A process for the production of a glass by the vacuum melting method using silica as a raw material is disclosed, comprising filing a silica fine powder in a suitable vessel, heating it in the presence of an accelerator for phase conversion to obtain a porous formed body consisting of a cristobalite phase, and then heating and melting the formed body in vacuo. According to the present invention, a transparent and active glass having a high quality can be produced at an inexpensive cost.
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公开(公告)号：EP0173961A2
公开(公告)日：1986-03-12
申请号：EP85110852.2
申请日：1985-08-28
发明人： Seki, Koji , Morishita, Hiroshi , Ohno, Kiyoshi , Yokota, Hiroshi
CPC分类号： C03C1/02 , C03B19/06 , C03B19/09 , C03B19/1065 , C03B20/00 , C03C3/06 , C03C2201/02 , C03C2203/10 , Y10S65/08 , Y10S65/16
摘要： A process for the production of a glass by the vacuum melting method using silica as a raw material is disclosed, comprising filing a silica fine powder in a suitable vessel, heating it in the presence of an accelerator for phase conversion to obtain a porous formed body consisting of a cristobalite phase, and then heating and melting the formed body in vacuo. According to the present invention, a transparent and active glass having a high quality can be produced at an inexpensive cost.
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