Abstract
This review covers vertical and horizontal DC casting as well as continuous casting from moving moulds. Attention is first directed to the conventional route by which semifabricated products are produced, the metallurgical features impressed upon them by the method of manufacture, and the ways in which these cali affect important characteristics of the final product. In the DC casting field the trend towards larger scale operation has been paralleled by the development of level pour, ‘hot top’ techniques to facilitate casting of many strands simultaneously, and, by efforts in this and other ways, to realize the benefits on cast ingot quality of using a short mould, leacting ultimately to the concept of ‘mouldless' casting. Meanwhile, there has been a corresponding advance in understanding of the casting process, generated in part by mathematical modelling. Horizontal DC casting is in use for the production of large rolling block and has been demonstrated for the casting of coilable, strip. Recently,.advances have been made in continuous-casting hardware which are likely to increase the range of alloys and product qualities that can be handled by the strip-casting approach. The characteristics of strip-cast metal are reviewed and some thought given to ways in which the weaker features might be improved. Finally, an attempt is made to compare the advantages and disadvantages of strip casting over the conventional route and to indicate the savings in cost, metal, and energy which wider adoption of strip casting could bring
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