Quality Control of Casting Slab for 510L Steel
Slab quality affects the quality of hot rolled sheet significantly. There were serious transverse corner cracks on continuous casting slab of 510L steel plate in Panzhihua Steel before. Based on this, some effective countermeasures are put forward, such as the optimization of ratio of heat flux on narrow side and broad side of casting slab and mold powder, as well as the stabilization of casting speed and working condition of caster. With these countermeasures, transverse corner cracks on continuous casting slab have been significantly reduced, and the lines and peeling defects on hot rolled sheet reduce from 30% to 0.
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
H. Pan et al., "Quality Control of Casting Slab for 510L Steel", Applied Mechanics and Materials, Vols. 117-119, pp. 756-759, 2012