发明名称 |
Synthetic quartz glass manufacturing process |
摘要 |
A process for manufacturing synthetic quartz glass involves feeding a quartz glass-forming raw material to a high-temperature gas zone within a chamber, converting the quartz glass-forming raw material into quartz soot, and forming synthetic quartz glass from the soot. A suspended soot-discharging gas which has been flow-straightened in a suspended soot discharging direction flows through the chamber in the vicinity of the high-temperature gas zone. This process keeps free suspended soot from settling onto the surface of the quartz ingot where fusion and growth take place, thereby preventing the formation of bubbles within the quartz glass under growth.
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申请公布号 |
US6339940(B1) |
申请公布日期 |
2002.01.22 |
申请号 |
US20000553392 |
申请日期 |
2000.04.20 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
YAMADA MOTOYUKI;OTSUKA HISATOSHI;MATSUO KOJI |
分类号 |
C03B8/04;C03B19/14;C03B20/00;C03B37/014;C03C3/06;(IPC1-7):C03B19/06 |
主分类号 |
C03B8/04 |
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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