发明公开
- 专利标题: HERSTELLUNG EINES QUARZGLASKÖRPERS IN EINEM SCHMELZTIEGEL AUS REFRAKTÄRMETALL
- 专利标题(英): EP3390302A2 - Production of a silica glass article in a suspended crucible made of refractory metal
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申请号: EP16816655.1申请日: 2016-12-16
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公开(公告)号: EP3390302A2公开(公告)日: 2018-10-24
- 发明人: OTTER, Matthias , LEHMANN, Walter , HÜNERMANN, Michael , NIELSEN, Nils Christian , WHIPPEY, Nigel Robert , GROMANN, Boris , KPEBANE, Abdoul-Gafar
- 申请人: Heraeus Quarzglas GmbH & Co. KG
- 申请人地址: Quarzstasse 8 63450 Hanau DE
- 专利权人: Heraeus Quarzglas GmbH & Co. KG
- 当前专利权人: Heraeus Quarzglas GmbH & Co. KG
- 当前专利权人地址: Quarzstasse 8 63450 Hanau DE
- 代理机构: Herzog, Fiesser & Partner Patentanwälte PartG mbB
- 优先权: EP15201137 20151218
- 国际公布: WO2017103115 20170622
- 主分类号: C03B20/00
- IPC分类号: C03B20/00 ; C03C3/06 ; C03B37/012 ; F27D7/02 ; C03B5/06 ; C03B17/04
摘要:
The invention relates to a method for producing a silica glass article, involving method steps i.) providing a silica granulate, ii.) forming a glass melt from the silica granulate in a melting crucible, and iii.) forming a silica glass article from at least some of the glass melt, the melting crucible being contained in a furnace and being made of at least one material containing tungsten, molybdenum or a combination thereof. The invention further relates to a silica glass article that can be obtained by said method. The invention also relates to an optical waveguide, an illuminant and a molded article, each of which can be obtained by further processing the silica glass article.
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