发明名称 |
Vapor-Reinforced Expanding Volume of Gas to Minimize the Contamination of Products Treated in a Melting Furnace |
摘要 |
Systems and corresponding methods are described herein that provide an effective inert blanket over a metal surface (hot solid (charge) metal or molten metal) in a container such as an induction furnace. The system includes a container of metal and a system configured to delivery biphasic inert cryogen toward the metal. The delivery system may include a lance disposed at the top of the container. The lance has a hood that directs both a flow of liquid cryogen and a flow of vaporous gas toward the metal surface. The liquid cryogen contacts the metal surface, generating a volume of expanding gas over the metal surface. The vaporous cryogen creates a reinforcing vapor that slows the expansion rate of the expanding gas, localizing the expanding gas over the metal surface.
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申请公布号 |
US2009064821(A1) |
申请公布日期 |
2009.03.12 |
申请号 |
US20080271994 |
申请日期 |
2008.11.17 |
申请人 |
AIR LIQUIDE INDUSTRIAL U.S. LP |
发明人 |
LA SORDA TERENCE D.;JEPSON STEWART C. |
分类号 |
C22B9/00 |
主分类号 |
C22B9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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