公开(公告)号：US5479436A

公开(公告)日：1995-12-26

申请号：US129354

申请日：1993-09-30

申请人： Hideo Hashida ,  Isamu Kawai ,  Kiwamu Nijuri ,  Hiromi Arakawa ,  Michinori Anahara

发明人： Hideo Hashida ,  Isamu Kawai ,  Kiwamu Nijuri ,  Hiromi Arakawa ,  Michinori Anahara

IPC分类号： C22B9/02 ,  C22B9/05 ,  C22B9/16 ,  F27B1/09 ,  H05B6/22 ,  H05B6/34 ,  H05B6/44

CPC分类号： H05B6/22 ,  H05B6/34

摘要： A metal material such as scraps of metal is directly heated by electromagnetic induction, and the resulting molten metal is fed to a heatup zone where the molten metal is further heated to a required temperature. More specifically, the metal material to be melted, which has been charged into a heat and melt zone, is preheated and melted by an induction coil, and the molten metal is passed via a connection portion to the heatup zone, and is stored there. The thus accumulated molten metal is further heated by an induction coil to a necessary temperature. The molten metal is taken out of the furnace by opening a tap hole when this is desired. Various kinds of gases can be selectively introduced into the apparatus via an gas inlet. By keeping the tap hole in an open condition, the molten metal can be continuously taken out of the furnace. With the induction heating method which has heretofore enabled only an intermittent melting operation, the metal material can be continuously melted and taken out. Furthermore, the atmosphere in which the melting operation is effected can be freely controlled, and therefore the melting operation can be carried out highly efficiently. Moreover, zinc in a zinc-coated steel sheet can be separated and recovered by placing cooling plates in the heat and melt zone.

摘要翻译： 通过电磁感应直接加热诸如金属碎片的金属材料，并将所得到的熔融金属进料到加热区，在该加热区中熔融金属被进一步加热至所需温度。 更具体地说，被加热到熔融区域的被熔化的金属材料被感应线圈预热和熔化，熔融金属通过连接部分通过加热区域，并被存储在那里。 这样积聚的熔融金属被感应线圈进一步加热到必要的温度。 当需要时，通过打开抽头孔将熔融金属从炉中取出。 可以通过气体入口将各种气体选择性地引入装置。 通过将开孔保持在打开状态，可以将熔融金属连续地从炉中取出。 利用迄今为止只能进行间歇熔化操作的感应加热方法，金属材料可以被连续地熔化并取出。 此外，可以自由地控制进行熔化操作的气氛，因此可以高效地进行熔融操作。 此外，通过将冷却板放置在热和熔融区域中，锌镀层钢板中的锌可以被分离和回收。