公开(公告)号：US20050012252A1

公开(公告)日：2005-01-20

申请号：US10619841

申请日：2003-07-14

申请人： Kuang-O Yu ,  Frank Spadafora

发明人： Kuang-O Yu ,  Frank Spadafora

IPC分类号： C21C5/52 ,  C22B9/22 ,  C22B34/12 ,  F27B3/08 ,  F27B3/18 ,  F27B3/20 ,  F27B3/24 ,  C21C5/00

CPC分类号： F27B3/20 ,  C21C5/5205 ,  C22B9/228 ,  C22B34/1295 ,  F27B3/085 ,  F27B3/18 ,  F27B3/24 ,  Y02P10/216

摘要： A recessed rim cold hearth and flanged skull for producing refined metal from raw metal contaminated with high density inclusions and/or hard alpha particles. The hearth has a hollowed body with a rectangular bottom wall and respective upstanding rectangular side and end walls which have imbedded water pipes for cooling water to circulate. An upwardly open chamber is defined within the body which terminates at an upper rim for holding a skull of metal formed on the cooled walls of the hearth. The upper rim of the hearth has an upwardly open, inwardly disposed peripheral recess to form and receive an outwardly extending peripheral flange of solidified metal of the skull. The peripheral flange overlaps and rests on the upper rim in the peripheral recess to support the skull within the hearth and seals against the upper rim such that molten metal disposed in a melt pool formed by overhead electron beam guns (EBM) or plasma torches (PAM) during metal refining is prevented from overflowing into any gap present between the skull and the hearth.

摘要翻译： 一个凹陷的边缘冷的炉底和法兰的头骨，用于由被高密度夹杂物和/或硬的α粒子污染的原始金属生产精炼的金属。 炉膛具有中空体，其具有矩形底壁和相应的直立矩形侧壁和端壁，其具有嵌入的水管用于冷却水循环。 限定在体内的向上敞开的腔室，其终止于上边缘，用于保持形成在炉壁的冷却壁上的金属颅骨。 炉膛的上边缘具有向上开口的向内设置的周边凹部，以形成并接收颅骨的固化金属的向外延伸的周边凸缘。 周边凸缘重叠并搁置在周边凹槽的上边缘上，以支撑炉膛内的颅骨，并且抵靠上缘密封，使得设置在由架空电子束枪（EBM）或等离子炬（PAM）形成的熔池中的熔融金属 ）在金属精炼期间被防止溢出到颅骨和炉膛之间存在的任何间隙中。