发明授权
- 专利标题： Method for remelting reactive metals
- 专利标题（中）： 重熔活性金属的方法
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申请号： US924835申请日： 1992-08-04
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公开(公告)号： US5234486A公开(公告)日： 1993-08-10
- 发明人: Alok Choudhury , Norbert Ludwig , Harald Scholz
- 申请人： Alok Choudhury , Norbert Ludwig , Harald Scholz
- 申请人地址： DEX Cologne
- 专利权人： Leybold Durferrit GmbH
- 当前专利权人： Leybold Durferrit GmbH
- 当前专利权人地址： DEX Cologne
- 优先权： DEX4212947 19920418
- 主分类号： C22B9/18
- IPC分类号： C22B9/18 ; C22B34/12 ; C22B34/14
摘要：
For the remelting of titanium or zirconium, the electroslag remelting method is used. To prevent any reaction of the melt with oxygen or nitrogen, the remelting is performed in an inert gas atmosphere. Fluorspar with an addition of calcium oxide is used as the slag forming substance. This calcium oxide dissolves in the fluorspar and reacts with oxygen, nitrogen and hydrogen in the titanium, so that the reactive metal is purified of these substances.
公开/授权文献
- US4713958A Method and apparatus for forming container end panels 公开/授权日：1987-12-22
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