Development of the twin-roll casting process
Development of the twin-roll casting process
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DOI：
10.1016/0924-0136(95)01788-7
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发表时间：
1995-11
影响因子：
6.3
通讯作者：
R. Cook;P. G. Grocock;P. Thomas;D. Edmonds;J. Hunt
中科院分区：
文献类型：
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作者：
R. Cook;P. G. Grocock;P. Thomas;D. Edmonds;J. Hunt
双辊铸造已经用于铝带的生产约40年。传统上，该方法生产率低，并且被限制在有限的合金范围和大约6 mm的最小铸造厚度。此外，由该方法生产的带材易受许多特征性铸造缺陷的影响。尽管有这些限制，该技术本身是健全的，目前的文件描述了一个发展方案，在很大程度上克服了传统工艺的一些缺点。铸造薄（通常为1-2 mm）具有降低下游加工要求的优点，此外，已经证明，对于各种合金，生产率的显著提高是可能的。然而，与薄规格下的铸造相关联的增加的出口温度和增加的分离力导致铸带粘附到铸造机辊的趋势增加。描述了粘附现象，并讨论了克服该问题的一些方法。
Twin-roll casting has been used for approximately 40 years for the production of aluminium strip. Traditionally, the process has been one of low productivity and has been restricted to a limited range of alloys and a minimum cast thickness of approximately 6 mm. Moreover, strip produced by this process is susceptible to a number of characteristic casting defects. Despite these limitations, the technique is inherently sound and the current paper describes a development programme that has largely overcome some of the shortcomings of the traditional process. Casting thin (typically 1–2 mm) has the advantage of reducing the downstream processing requirement and in addition it has been demonstrated that significant increases in productivity are possible for a wide range of alloys. However, the increased exit temperatures and increased separating forces associated with casting at thin gauges result in an increase in the tendency for the cast strip to stick to the caster rolls. The phenomenon of sticking is described and a number of methods of overcoming the problems are discussed.