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利用轧辊将大型连铸板坯切分为多种规格的板坯和方坯,供给各个轧钢车间,是国外近年开发的一种新技未。该工艺只需2～4道次就能切分220～260×600～2550mm、温度为1000℃左右的大型连铸板坯。在现场条件许可时,利用连铸坯的余热直接进行切分轧制,还可进一步节能。针对切分时轧件产生的弯曲及局部隆起变形,开发了板坯预整形约束挠度切分法和无约束切分挠度矫正法。该新工艺能大大提高连铸机的生产能力、获得显著的经济效益、切分质量可靠,它特别适应于既有板坯连铸机又需生产多种规格带钢及其他型钢产品的综合性钢厂。
The use of rolls will be large continuous casting slab cut into a variety of slabs and billet, supply each rolling plant, is a foreign technology developed in recent years. The process can be divided into 220 ~ 260 × 600 ~ 2550mm, the temperature of about 1000 ℃ for large continuous casting slab only 2 to 4 times. When the site conditions permit, the use of slab heat directly cut and split, but also further energy-saving. Aiming at the bending and local uplift deformation of the workpiece during the splitting process, the preform restraint deflection slab splitting method and the unconstrained splitting deflection straightening method are developed. The new process can greatly improve the continuous casting machine production capacity, access to significant economic benefits, cutting quality and reliable, it is particularly suited to both the existing slab caster and the need to produce a variety of specifications of steel and other steel products comprehensive Steel mills.