| 发明名称 |
Method for flame abrasion of glass preform. |
| 摘要 |
<p>A glass preform (1) is preheated and then subjected to a flame abrasion by oxyhydrogen flame (4). A surface of the glass preform (1) thus abrased has no crack during the cooling after the flame abrasion.</p> |
| 申请公布号 |
EP0519479(A2) |
申请公布日期 |
1992.12.23 |
| 申请号 |
EP19920110326 |
申请日期 |
1992.06.19 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD |
发明人 |
OHGA, YUICHI;DANZUKA, TOSHIO |
| 分类号 |
C03B29/04;C03B29/02;C03B37/012;C03B37/014 |
主分类号 |
C03B29/04 |
| 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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