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介绍了鞍钢2150ASP中薄板坯连铸连轧生产线开发11.99mm厚电阻焊石油套管用钢N80-1热轧卷板的难点和特点。成分设计上采用低碳高锰添加少量Mo元素,碳当量控制在0.45%以下;在工艺上采用纯净钢冶炼、动态轻压下连铸技术、ASP热装热送工艺和TMCP技术,解决了中薄板坯压缩比小、卷板抗拉强度低等难题,成功实现了其批量供货。卷板制管后,产品各项性能完全满足APISPEC5CT标准要求。
The difficulties and characteristics of development of 11.99mm thick N80-1 hot rolled coil for oil resistance casing oil casing of Angang 2150ASP are introduced. In the composition design, a small amount of Mo is added with low carbon and high manganese, and the carbon equivalent is controlled below 0.45%. In the process, pure steel smelting, dynamic soft reduction continuous casting, ASP hot charging and TMCP technology are adopted, Thin slab compression ratio, low tensile strength of the coil and other problems, the successful realization of its bulk supply. After the coil pipe, the performance of the product fully meet the APISPEC5CT standard requirements.