发明授权
- 专利标题： Method of producing a bubble-free vitreous material
- 专利标题（中）： 生产无气泡玻璃质材料的方法
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申请号： US312469申请日： 1981-10-19
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公开(公告)号： US4414014A公开(公告)日： 1983-11-08
- 发明人: Rolf Bruning , Poul-Erik Breidenbach , Norbert Cibis , Fritz Aldinger , Waltraud Werdecker
- 申请人： Rolf Bruning , Poul-Erik Breidenbach , Norbert Cibis , Fritz Aldinger , Waltraud Werdecker
- 申请人地址： DEX Hanau am Main
- 专利权人： Heraeus Quarzschmelze GmbH
- 当前专利权人： Heraeus Quarzschmelze GmbH
- 当前专利权人地址： DEX Hanau am Main
- 优先权： DEX3039749 19801022
- 主分类号： C03B20/00
- IPC分类号： C03B20/00 ; C03B19/06 ; C03B32/00 ; C03C3/06 ; C03C15/00 ; C03C15/02
摘要：
For the production of a bubble-free vitreous material, and in particular bubble-free vitreous silica, bubbles-containing vitreous material is exposed in a furnace, at a temperature which reduces its viscosity to a value between 10.sup.13.5 and 10.sup.8 Pa.sec, to the omnidirectional pressure ranging from 100 to 3000 bars of a gas which is insoluble in the vitreous material for a period of not less than 10 minutes and is then cooled.
公开/授权文献
- US5580634A Coated abrasive backing 公开/授权日：1996-12-03
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