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铝及其合金的现代热轧机列,包括一台宽的单机架四重初轧机(能横向轧制厚度达660毫米的长铸块)和一台配备有纵切机和卷卷机的串联式热精轧机。本文讨论了单位宽度重量、总宽度重量和轧制速度对轧机的产量和生产能力的影响。根据铸块均匀化程度和轧制道次程序来控制冶金性能。然而,产品的表面质量取决于铸块质量、铣面好坏和对轧制冷却液的成分与温度的控制。现在用户的要求趋向于更大的、具有一般成分和复杂成分的合金卷材以及强度更高、厚度更小的材料。本文提出,考虑到横向轧制有一定限度,将来可在专门的热轧机上生产大型产品;另一方面,采用连续铸造板坯也可制成宽的薄带材。
The modern hot-rolling train of aluminum and its alloys consists of a wide single-stand quadruple prime stand (capable of transversally rolling long cast ingot up to 660 mm in thickness) and a tandem unit equipped with slitter and coiler Hot finishing mill. This article discusses the effects of unit width weight, total width weight and rolling speed on the mill’s throughput and capacity. According to the degree of homogenization of the ingot and rolling pass procedure to control the metallurgical properties. However, the surface quality of the product depends on the quality of the ingot, the quality of the milling face, and the composition and temperature control of the rolling coolant. Nowadays, the demands of the user tend to be towards larger, alloyed coils of both normal and complex composition, as well as materials of higher strength and smaller thickness. This paper proposes that, in view of the limitations of horizontal rolling, large-scale products can be produced on dedicated hot-rolling mills in the future; on the other hand, continuous casting of slabs can be used to form wide strip.