我们将从加热炉开始，详细介绍金属的加工工艺方法，以说明为什么要经过各个阶段操作，才能得到可以接受、能够达到或者超过客户最终的期望的金属品质。现代铸造业有三项主要的产品，这篇文章将解决其中的第一项，即直冷铸造炉中的板坯连铸问题。 在这一系列的后两篇文章，将介绍直冷方坯连铸和薄带连铸日语翻译。

We have followed in detail the metal process path all the way from the furnace  so as to demonstrate why the various stages are carried out in order to achieve an acceptable metal quality, which will meet or exceed the final end-customer’s expectations. This article will now address casting the first of the three principal products from Aluminium Casthouses – namely Slab (or Rolling Ingot) Casting in Vertical Direct Chill (VDC) Pits. The last two articles in this series, will cover the subjects of VDC Billet Casting and Continuous Strip Casting.

现在必须把所有在铸造工艺的上游所完成的加工工作转化成一个高质量的铸造产品，然后才能销售出去。板坯连铸所涵盖的合金种类、大小和尺寸都相当广泛，这些产品将会应用到不同的领域之中。 1xxx， 2xxx， 3xxx， 4xxx， 5xxx， 6xxx， 7xxx 和 8xxx合金都必须铸造成板坯的形式，以满足它们被轧制成金属薄板，金属薄片或是金属箔的需要。值得注意的是，在各种应用中，对铸造产品的质量的要求是不同的。因此，对于有较高性能要求的产品，必须使用高规格的、额外的炉外处理、过滤和增强脱气处理， 而对于一般用途的产品，则只需要进行标准的处理过程就可以了同声传译报价。

All of the processing work which has been already undertaken upstream of the casting pit now has to be converted into a quality cast product, which can be sold. Slab casting covers a wide range of alloys and sizes for several different applications. 1xxx, 2xxx, 3xxx, 4xxx, 5xxx, 6xxx, 7xxx and 8xxx alloys are all cast into slab form for applications which require them to be rolled to sheet, plate or foil. It is worth remembering at this point that not all slab applications require the same stringent quality of metal. As a result, additional furnace treatment, extra filtration and enhanced degassing are required for slab destined for use in high-specification products, whereas a standard treatment is acceptable for slabs going for general use products.