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公开(公告)号:US4621675A
公开(公告)日:1986-11-11
申请号:US753815
申请日:1985-07-09
IPC分类号: B22D11/06
CPC分类号: B22D11/0691
摘要: Process and apparatus for continuous casting in a twin-belt casting machine in which the moving side dams are guided along opposite sides of the moulding cavity by guide device extending along beside the respective moving side dams, and the moving side dams are cooled by cooling fluid circulated in at least a part of the guide device and applied directly to the moving side dams. The moving side dams are cooled by cooling fluid sprayed through orifices in the guide device directly onto the moving side dams along at least a part of the downstream zone of the moulding cavity. During movement of the side dams along the moulding cavity from its entrance to its exit, they pass successively through a first (or upstream) zone in which they face molten metal and through a second (or downstream) zone in which they face solidified metal. The cooling fluid is sprayed directly onto the moving side dams only in this second zone. The first zone occupies from approximately 3/10ths to approximately 1/2 of the overall length of the moulding cavity, and the second zone occupies the remainder. The cooling fluid is advantageously sprayed directly toward the side dam for providing very effective cooling action, and this cooling fluid is aimed in a downstream direction that forms an acute angle with the moving direction of the side dam. Preferably this acute angle is in the range from approximately 20.degree. to approximately 50.degree. for propelling the cooling fluid downstream away from the first zone, and preferably the cooling fluid is water.
摘要翻译: 在双带铸造机中连续铸造的工艺和装置,其中通过沿着相应的移动侧坝旁边延伸的导向装置,移动侧坝沿着模腔的相对侧被引导,并且移动侧坝被冷却流体 在导向装置的至少一部分中循环并直接施加到移动侧坝。 移动侧坝体通过沿导向装置中的孔喷射的冷却流体沿着模腔的下游区域的至少一部分直接地喷射到移动侧坝上。 在侧坝沿着模腔从其入口到其出口运动期间,它们依次通过它们面对熔融金属的第一(或上游)区域并通过它们面对固化金属的第二(或下游)区域。 冷却液仅在该第二区域直接喷洒到移动侧坝上。 第一区域占据模腔整体长度的大约3/10至大约1/2,第二区域占据其余部分。 冷却流体有利地直接朝向侧坝喷射以提供非常有效的冷却作用,并且该冷却流体朝向与侧坝的移动方向形成锐角的下游方向瞄准。 优选地,该锐角在大约20°至大约50°的范围内,用于将冷却流体从第一区域下游推进,优选地,冷却流体是水。