发明公开
- 专利标题: Method for flame abrasion of glass preform
- 专利标题(中): 玻璃预制件的火焰磨蚀方法
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申请号: EP92110326.3申请日: 1992-06-19
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公开(公告)号: EP0519479A3公开(公告)日: 1993-02-24
- 发明人: Ohga, Yuichi, c/o Yokohama Works of , Danzuka, Toshio, c/o Yokohama Works of
- 申请人: SUMITOMO ELECTRIC INDUSTRIES, LTD
- 申请人地址: 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka-fu 541 JP
- 专利权人: SUMITOMO ELECTRIC INDUSTRIES, LTD
- 当前专利权人: SUMITOMO ELECTRIC INDUSTRIES, LTD
- 当前专利权人地址: 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka-fu 541 JP
- 代理机构: Hansen, Bernd, Dr. Dipl.-Chem.
- 优先权: JP148609/91 19910620
- 主分类号: C03B37/012
- IPC分类号: C03B37/012 ; C03B29/02
摘要:
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.
公开/授权文献
- EP0519479B1 Method for flame abrasion of glass preform 公开/授权日:1997-01-08
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