Abstract In order to make high-precision big-size forgings and major-diameter wrought wheels, it is necessary to use ingots of at least more than 1000 mm in diameter. At the Taewoong factory in the Republic of Korea, SMS Concast has designed and put into operation a single-strand radial CC machine with a 120 t steel-teeming ladle for casting 1000-mm blanks. The high quality of the blanks is ensured by applying well-known engineering solutions, in particular, electromagnetic stirring of liquid metal in the crystallizer and induction pre-flattening heating of continuously cast ingots. The plant’s output is inhibited by a long ingot solidification period. The high product prime cost is determined by large capital investments. The equipment required for applying the fractional casting technology developed by the author and proposed for usage is user friendly and allows pipe shells for ring-roll mills to be created because they must be pierced on a piercing press to prepare the blanks for rolling. The process flow chart is presented and the multistrand plant developed for making ingots of 1200 mm in outside and 120 in inner diameter. The possibility of making these ingots on a commercial scale by fractional casting is confirmed by verification testing.

中文翻译：

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大尺寸管壳的连铸

摘要 为了制造高精度的大尺寸锻件和大直径锻造车轮，必须使用直径至少在1000 mm以上的钢锭。在大韩民国的 Taewoong 工厂，SMS Concast 设计并投入运行了一台带有 120 吨钢包的单股径向 CC 机器，用于铸造 1000 毫米的毛坯。通过应用众所周知的工程解决方案，特别是结晶器中液态金属的电磁搅拌和连铸锭的感应预压平加热，确保了毛坯的高质量。长铸锭凝固期抑制了工厂的产量。高产品主要成本是由大量资本投资决定的。应用作者开发并建议使用的分步铸造技术所需的设备是用户友好的，并且可以制造环辊轧机的管壳，因为它们必须在穿孔压力机上穿孔以准备用于轧制的毛坯。给出了工艺流程图，并开发了用于制造外径为 1200 毫米和内径为 120 毫米的铸锭的多链设备。验证测试证实了通过分步铸造以商业规模制造这些锭的可能性。