发明名称 |
Method and device for producing a homogenous sheet of quartz glass without streaks |
摘要 |
In a method for producing a streak-free quartz glass sheet with a highly homogeneous degree of refraction, a quartz glass rod is lowered into a melting pot parallel to a longitudinal axis of the quartz glass rod. A cross-section of the melting pot is larger than a cross-section of the quartz glass rod and determines a contour of the quartz glass sheet. The quartz glass rod is heated in the melting pot to a flow temperature whereupon the quartz glass rod is lowered until the quartz glass rod melts and a height of the quartz glass flowing in the melting pot reaches a desired quartz glass sheet thickness. The melting pot and the quartz glass rod move relative to each other in a direction which is perpendicular to the longitudinal axis of the quartz glass rod during the melting process. Preferably, the movement involves a rotational and a transverse movement.
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申请公布号 |
US6415630(B1) |
申请公布日期 |
2002.07.09 |
申请号 |
US20000403887 |
申请日期 |
2000.01.11 |
申请人 |
SCHOTT GLAS |
发明人 |
CORIAND FRANK;MENZEL ANDREAS;NADRAG WALTER;SCHMIDT WOLFGANG |
分类号 |
C03B19/02;C03B20/00;(IPC1-7):C03B5/08 |
主分类号 |
C03B19/02 |
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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