发明名称 |
MOLD FOR PRODUCING A SILICA CRUCIBLE |
摘要 |
A mold for the production of a silica crucible by heat-fusing silica or quartz powder attached onto an inner wall of a rotating mold, wherein a ring-shaped heat insulating barrier material having a specified inner diameter is disposed on an inner peripheral wall of an upper opening portion of the mold corresponding to an upper region of the silica crucible.
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申请公布号 |
US2010112115(A1) |
申请公布日期 |
2010.05.06 |
申请号 |
US20090604039 |
申请日期 |
2009.10.22 |
申请人 |
JAPAN SUPER QUARTZ CORPORATION |
发明人 |
YOSHIOKA TAKUMA;MORIKAWA MASAKI |
分类号 |
B28B5/06 |
主分类号 |
B28B5/06 |
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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