连续铸造的铝锭在生产中除了要求铸锭截面上有小的均匀的枝晶网络外,还特别希望表面光滑,边缘无偏析。因而,连续铸造工艺的研究特别着重于包括铸锭表面在内的表层组织。在考虑表面外观时必须区分不同的组织形态,在文献中已对此及其形成机理做了详细介绍。对于表面层组织及表面偏析的形成也有介绍。要区分两种情况:一种是用浇口及分配漏斗的普通连续铸造;另一种是热顶结晶器 Continuous casting of aluminum ingots in addition to the production of ingots in the cross section requires a small uniform dendritic network, but also particularly hope that the surface smooth, edge no segregation. Thus, the study of continuous casting processes places special emphasis on the surface texture, including ingot surfaces. Different tissue morphologies must be distinguished when considering the appearance of the surface. This and its formation mechanism have been described in detail in the literature. For the formation of surface layer and the formation of surface segregation are also introduced. To distinguish between the two cases: one is the use of gates and distribution funnel ordinary continuous casting; the other is a hot top crystallizer