发明名称 |
Method of manufacturing a double-crucible for the Czochralski growing technique |
摘要 |
<p>A method of manufacturing a crucible for a double-crucible growing technique comprising the steps of: feeding quartz powder into a rotating mold; forming a crucible-like quartz powder layer body with the help of a centrifugal force in the mold; melting the layer body by heating through the inner surface with an arc discharge to manufacture an outer crucible member; and welding an inner crucible member to the outer crucible member while a temperature of the inner surface portion of the outer crucible member remains at 1400 DEG C or higher by a remaining heat. Quartz glass crucible for a double-crucible growing technique can be manufactured with excellent characteristics of junction, a low production cost and a high production yield.</p> |
申请公布号 |
EP0745705(B1) |
申请公布日期 |
1998.11.25 |
申请号 |
EP19960107508 |
申请日期 |
1996.05.21 |
申请人 |
HERAEUS QUARZGLAS GMBH;SHIN-ETSU QUARTZ PRODUCTS CO., LTD. |
发明人 |
WATANABE, HIROYUKI;SATO, TATSUHIRO;MATSUI, HIROSHI |
分类号 |
C03B23/20;C03B19/04;C03B19/09;C03B20/00;C30B15/12;(IPC1-7):C30B15/12 |
主分类号 |
C03B23/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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