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公开(公告)号:US06260386B1
公开(公告)日:2001-07-17
申请号:US08208557
申请日:1994-03-10
IPC分类号: C03B3700
CPC分类号: C03B37/012 , B08B7/0021
摘要: Glass preforms are cleaned by contacting each preform (11) with supercritical carbon dioxide which dissolves residual index-matching oil on the preform. The liquefied carbon dioxide is then converted to gaseous carbon dioxide which conveniently separates the index-matching oil so that it can be recovered and reused. The gaseous carbon dioxide is likewise recycled for use in cleaning other preforms, and so there is substantially no waste.
摘要翻译: 通过使每个预制件(11)与超临界二氧化碳接触来清洁玻璃预成型件,所述超临界二氧化碳在预成型件上溶解剩余的折射率匹配油。 然后将液化的二氧化碳转化为气态二氧化碳,其方便地分离指数匹配油,使其可以回收和再利用。 气态二氧化碳同样被循环用于清洁其它预型件,因此基本上没有浪费。