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为配合轨梁厂2号横列式轧钢线改造,包钢炼钢厂新建了一台3机3流异型坯/大方坯复合型连铸机,可以生产断面1 024 mm×390 mm×120 mm异形坯,还可完美兼容319 mm×410 mm大方坯的生产。该铸机采用塞棒手动开浇+半浸入式水口浇铸方式、全弧形组合式结晶器、DynaFlex液压振动、辊列优化、内弧自动除水、连续矫直、自动火焰切割、自动出坯、DynaSpeed二冷自动配水等多项新技术。截至2013年1月20日,该铸机累计生产BB4断面异形坯5 150.4 t,各项指标达到设计要求,铸坯表面无缺陷、内部质量优良。
In line with the track girder No. 2 line rolling mill transformation, Baotou Steel Works built a 3-machine 3-flow preform / billet composite caster, can produce cross-section 1 024 mm × 390 mm × 120 mm profile Billets are also perfectly compatible with the production of 319 mm × 410 mm billets. The casting machine adopts manual casting with semi-submerged entry nozzle, semi-submerged nozzle casting, full arc combined mold, DynaFlex hydraulic vibration, roller column optimization, inner arc automatic water removal, continuous straightening, automatic flame cutting, automatic blanking , DynaSpeed second cold automatic water distribution and many other new technologies. As of January 20, 2013, the caster produced a total of 5 150.4 tons of BB4 cross-shaped billets. All the indexes met the design requirements. The surface of the billets was free from defects and the internal quality was excellent.