Reasons Analysis and Preventive Measures of Transverse Corner Crack on the Surface of Medium and Heavy Continuous Casting Slab

Transverse corner crack on the surface of medium and heavy continuous casting slab is a kind of common surface defects.Combining Baosteel Luo Jing No.2 continuous casting machine in actual production condition and slab quality,the papers analyse the reasons and generating mechanism of transverse corner crack on the surface of medium and heavy continuous casting slab,and describes some preventive measures from the aspects of state of continuous casting machine equipments,steel grade and chemical composition,process parameters etc.These preventive measures can instruct production management and operation and can effectively control Transverse corner crack to improve slab quality.