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    • 45. 发明授权
    • Combined crucible, tundish and pouring spout
    • 组合坩埚,中间包和倾倒口
    • US4138096A
    • 1979-02-06
    • US865085
    • 1977-12-27
    • Raymond R. BoucherRobert A. Metcalfe
    • Raymond R. BoucherRobert A. Metcalfe
    • F27B14/00F27B14/06F27B14/08F27B14/10F27B14/02
    • F27B14/08B22D41/01B22D41/04F27B14/061F27B2014/002F27B2014/0812F27B2014/104
    • A crucible, tundish, and pouring spout is formed as a single unit with the crucible portion being positioned in an induction furnace for providing sufficient heat to ingots placed in the crucible portion. An extension is positioned on top of the crucible portion on one side forming an integral tundish portion with one part of the crucible for the molten metal. After the induction coil had melted the ingot and the induction heater and crucible portion are tilted approximately 90.degree., the molten metal is held by the tundish portion. A pouring spout portion extends from the extension referred to for pouring the molten metal from the tundish portion. Said pouring spout portion includes a nozzle insert and intermediate insert for providing the proper restricted opening and to protect the inner sides of the spout portion. A metal plug is provided where the spout portion meets the tundish portion which is melted by the molten metal to start the pouring at a predetermined time after the induction heater and crucible portion have been rotated. A heat shield is provided over the opening of the crucible portion and tundish portion for preventing unnecessary exposure of the interior thereof.
    • 坩埚,中间包和倾倒口形成为单个单元,其中坩埚部分位于感应炉中,以便为放置在坩埚部分中的锭提供足够的热量。 延伸部位于一侧的坩埚部分顶部,与熔融金属坩埚的一部分形成一体的中间包部分。 感应线圈熔化后,感应加热器和坩埚部分倾斜约90度,熔融金属被中间包部分保持。 倾倒口部分从用于将熔融金属从中间包部分注入的延伸部延伸。 所述倾倒口部分包括用于提供适当限定开口并用于保护出口部分的内侧的喷嘴插入件和中间插入件。 设置有金属塞,其中喷嘴部分与熔融金属熔化的中间包部分相接触,以在感应加热器和坩埚部分旋转之后的预定时间开始倾倒。 在坩埚部分和中间包部分的开口上设置隔热罩,以防止其内部不必要的暴露。
    • 46. 发明授权
    • Lamellar crucible for induction melting titanium
    • LAMELLAR CRUCIBLE FOR Induction MELTING TITANIUM
    • US3734480A
    • 1973-05-22
    • US3734480D
    • 1972-02-08
    • US NAVY
    • ZANIS CHELFERICH R
    • F27B14/10F27D1/00
    • F27D1/0006F27B14/10F27B2014/104Y10S266/905
    • A lamellar crucible for induction melting titanium has an outer graphite shell closed at one end to form inner and outer surfaces. A first layer generally of the class of refractory metals or of beryllium oxide covers the inner surface of the shell to limit carbon contamination. A second layer is preferably oxygen deficient yttrium oxide and may also be generally of the class of rare earth metal oxides in an oxygen deficient condition. Also, the second layer may be yttrium oxide or the rare earth metal oxides. The second layer covers the first layer to limit reactivity with the molten titanium.
    • 用于感应熔融钛的层状坩埚具有在一端封闭的外部石墨壳,以形成内表面和外表面。 通常为难熔金属或氧化铍类的第一层覆盖壳的内表面以限制碳污染。 第二层优选是氧缺氧氧化钇,并且在缺氧条件下也可以是一类稀土金属氧化物。 此外,第二层可以是氧化钇或稀土金属氧化物。 第二层覆盖第一层以限制与熔融钛的反应性。