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首页> 外文期刊>Scandinavian Journal of Metallurgy >The status of twin-roll casting technology
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The status of twin-roll casting technology

机译：双辊铸造技术的现状

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Within the coming days the world's first commercial, direct twin-roll caster for carbon steel strip less than 2.0 mm, without further hot or cold rolling, will be started by Nucor in the United States. Although the process has been previously proven on a technical basis during full-scale development in Australia, the Nucor caster is unique in that it will have to demonstrate both its technical and economic advantages in a rigorous commercial environment. The advent of any new technology naturally raises the question of whether there is a need for that technology, and where the new technology will fit into the spectrum of existing processes. Experience to date indicates that twin-roll casters will quickly fill a latent demand for ultra-thin cast strip (UCS), i.e., a new product category for sheet steel. In the future, thick slab casters, thin slab casters and twin-roll casters will coexist and become increasingly specialized. The result will be both new and better products for steel consumers and satisfactory financial returns for steelmakers. The CASTRIP~(R 1) process produces steel strip between 0.7 and 2.0 mm in thickness, directly from liquid steel. For many applications the UCS product will be directly usable by end users, without further hot rolling, pickling or cold rolling. It can be galvanized, coated with aluminum/zinc, painted and formed without further processing, and will be available in strength levels from about 250 Mpa to more than 600 Mpa-all using a single, simple chemistry. End-users will be able to buy a new product with price and properties intermediate between today's hot-rolled and cold-rolled steels. Among the unique features of the process is its much lower consumption of energy and reduced environmental emissions.
机译：未来几天内，美国纽柯公司将在全球范围内推出世界上第一台商用双辊铸轧机，用于小于2.0毫米的碳钢带，无需进一步的热轧或冷轧。尽管该工艺先前已在澳大利亚进行全面开发时以技术为基础进行了验证，但Nucor脚轮的独特之处在于必须在严格的商业环境中展示其技术和经济优势。任何新技术的问世自然都会引发一个问题，即是否需要该技术，以及该新技术将在现有工艺范围内适合哪些领域。迄今为止的经验表明，双辊铸机将迅速满足对超薄铸带（UCS）（即钢板的新产品类别）的潜在需求。将来，厚板坯连铸机，薄板坯连铸机和双辊连铸机将共存并日趋专业化。结果将是为钢铁消费者提供更好的新产品，并为钢铁制造商带来令人满意的财务回报。 CASTRIP〜（R 1）工艺直接从液态钢生产厚度在0.7到2.0毫米之间的钢带。对于许多应用而言，最终用户可以直接使用UCS产品，而无需进一步的热轧，酸洗或冷轧。它可以进行镀锌，铝/锌涂层，上漆和成型而无需进一步处理，并且强度等级从约250 Mpa到600 Mpa以上-都可以使用一种简单的化学方法完成。最终用户将能够购买价格和性能介于当今热轧和冷轧钢之间的新产品。该工艺的独特之处在于其能耗低得多，环境排放减少。

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