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1. 发明申请

US20110139394A1 COLD WALLED INDUCTION GUIDE TUBE 有权
标题翻译：冷壁感应导管
公开(公告)号：US20110139394A1
公开(公告)日：2011-06-16
申请号：US12639553
申请日：2009-12-16
申请人： William T. Carter , Russell S. Miller , Howard R. Hart, JR.
发明人： William T. Carter , Russell S. Miller , Howard R. Hart, JR.
IPC分类号： B22C9/08 , B22D35/06 , B22C19/00
CPC分类号： B22D23/10 , B22D41/60
摘要： The introduction of spray formed metals into critical applications in the aircraft engine and power generation industries has been hampered by the possibility of erosion of oxide particles from a crucible lining or pouring nozzle in conventional spray forming equipment. These oxide particles may become inclusions that limit low-cycle fatigue life of parts. Use of a cold-walled induction guide (CIG) with an electrical insulation layer between copper CIG elements and the liquid metal offers a means of delivering ceramic-free alloys to a spray system with improved efficiency. CIG design options facilitated by a new oven-brazed fabrication technique resolve induction coil environmental isolation issues, correct thermal strain tolerance problems, facilitate dual frequency induction designs, allow improved electrical coupling efficiency and thermal efficiency, result in improved melt flow initiation, and facilitate disassembly without damage from the solidified melt.
摘要翻译：喷雾成形金属在飞机发动机和发电行业的关键应用中的引入受到常规喷射成形设备中坩埚衬里或倾倒喷嘴的氧化物颗粒侵蚀的可能性的阻碍。这些氧化物颗粒可能成为限制部件的低周疲劳寿命的夹杂物。使用具有铜CIG元件和液态金属之间的电绝缘层的冷壁感应引导件（CIG）提供了一种将无陶瓷合金输送到喷雾系统，提高效率的手段。 CIG设计选项由新的烤箱钎焊制造技术推动，解决感应线圈环境隔离问题，正确的热应变公差问题，促进双频感应设计，允许改进的电耦合效率和热效率，导致改进的熔体流动启动，并便于拆卸而不会从固化的熔体中损伤。

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