介绍12流方坯连铸机生产、质量与设备改进情况,主要针对200 mm×285 mm规格的大断面连铸坯和150×150、165 mm×165 mm小断面连铸坯的生产问题,通过改进导向段、优化二次冷却、改进结晶器和喷淋管、优化操作要点等手段,使得铸坯质量有了很大改善,同时也使生产效率有了很大提高。 This paper introduces the production, quality and equipment improvement of 12 billet caster. It mainly deals with the production of large cross-section billet of 200 mm × 285 mm and small cross-section billet of 150 × 150, 165 mm × 165 mm, Improve the guide section, optimize the secondary cooling, to improve the mold and spray pipe, and optimize the operation of points and other means, making the slab quality has been greatly improved, but also to greatly improve the production efficiency.