发明名称 |
Method for manufacturing hollow and solid ingots |
摘要 |
Disclosed is a method and apparatus for forming hollow and cylindrical ingots of amorphous or fused silica and other ingot materials. The ingot is formed from a melt on a deposition surface which is lowered as the ingot is formed at a rate which maintains a constant distance between the deposition surface and a heat source vertically positioned above same. The melt is shaped into a vertical cylinder by at least one forming tool which is a roller member rotatable about a vertical axis. In a preferred embodiment the fixed distance from the heat source is maintained with the aid of the laser beam.
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申请公布号 |
US4102663(A) |
申请公布日期 |
1978.07.25 |
申请号 |
US19760703919 |
申请日期 |
1976.07.09 |
申请人 |
JUNG, LOTHAR |
发明人 |
JUNG, LOTHAR |
分类号 |
B22D7/04;B22D9/00;C03B19/01;C03B23/047;C03B37/012;(IPC1-7):C03B23/20;C03B37/02 |
主分类号 |
B22D7/04 |
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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