板坯连铸机的升级改造及其结晶器在线热调宽

摘要

介绍了中钢设备有限公司对承建的土耳其某钢厂双流板坯连铸机升级改造:将铸坯规格由最大170 mm×880 mm提高到190 mm× 1015 mm,并增加了结晶器在线热调宽功能.考虑到原铸机结晶器宽窄边铜板和背板等主要部件的尺寸均不能满足新的板坯尺寸要求,且调宽机构精度也不能满足在线热调宽的要求,中钢设备有限公司重新设计了结晶器、弯曲段和扇形段5～6,并对扇形段1～4、7～10和其他部分进行了改造.改造后调宽速度为10～ 20 mm/min,调宽过程中拉坯速度为1.0～1.6 m/min,且铸坯质量良好,铸机增产达40％.%The upgrading modification of a double-strand slab caster in a Turkey steel plant constructed by Si-nosteel MECC and the addition of online width adjustment function of mould are introduced. Since the original equipment can not meet the requirements of the slab dimention and accuracy, Sinosteel MECC redesigned the mould, bending section and sectorial section. The slab width and thickness were increased from 170 mm×880 mm to 190 mm x 1015 mm. The production capacity of modified slab caster was increased by a factor of 40%. The online width hot adjustment function was added. The speed of width adjustment is 10 ~20 mm/min. The withdraw speed is 1.0~1.6 m/min in the process of width adjustment.