Large particle non-metallic inclusion source in continuous casting slab by large sample electrolysis method

The large particle non-metallic inclusions in continuous casting slab of Q235 B steel were extracted by large sample electrolysis method. The inclusions in inner arc, outer arc and central part of continuous casting slab were compared and analyzed by scanning electron microscope and energy spectrum. The source of non-metallic inclusions was judged. The results could provide reference for further improving the purity of continuous casting slab.