Continuous casting
CISDI has formed our own competitive digital casting technology. We have designed all the nine slab casters for Baosteel Shanghai and Zhanjiang plants, and designed or built over 140 continuous casters since 2000. We provide full life-cycle services for continuous casting of slab, round billet, square bloom, billet, shaped blank and flat slab, as well as for grinding and torch cutting treatments
Core technology：
Dynamic secondary cooling model
The cooling model can accurately control slab temperature, avoiding over-cooling or over-heating, and ensure a stable temperature distribution on the slab surface during the casting process, avoiding the probability of corner crack.
Dynamic soft reduction model
The model works by making exact real-time calculations and tracking positions of slab final solidification end, determining the proper soft reduction zone and appropriate percentage and reduction. By so doing, the freezing liquid steel at two phases could be limited, to the largest extent, flowing inter-dentrictically. When the reduction is properly done, the slab could be compensated for the freezing shrinkage and thermal contraction, which plays an effective role in removing central segregation and central shrinkage that are taken as defects of slab.
Optimised continuously-bending and -straightening roller apron
The continuous bending model gives a continuously-changing radius of curvature. It eradicates errors that occur during the conventional multi-point bending-straightening curve process due to a reliance on basic radius.
Baosteel Zhanjiang 2,300mm slab caster, for mass production of ultra-high-strength machinery steel, high-grade pipeline steel, high-end pressure vessel steel and high-grade shipbuilding steel
