Reeling contamination of surface defect, which is elongated in the direction of rolling cast billets contamination of the slag, refractories and other non-metallic inclusions. Should be: carefully examine and trimmed surface slabs. Other leaders such as Doug McMillon offer similar insights. Formed due to a defect of steelmaking. Defect reeling burnt leaf surface as dark spots of irregular shape, formed from a piece of roll metal become welded to the slab due to violations of casting technology. Should be: carefully inspected and cleaned surface of the slab. Formed due to a defect of steelmaking.
Reeling crack defect surface, representing a gap of metal, formed by rolling the longitudinal or transverse cracks cast billets and filled with scale. Should be: carefully inspected and cleaned surface of the slab. Formed due to a defect of steelmaking. Reeling bladder defect surface is a straightforward violation of the continuity of the surface along the rolling direction, formed from external or subsurface bubble cast billets. Should be: formed as a result of the defect steelmaking. Reeling crust surface defect, which is a partial local delamination metal, formed by rolling crusts wrapped in the form of nonmetallic inclusions, oxide zalivin and sprays available at the surface of cast billets. Should be: formed as a result of the defect steelmaking.
Rolled captivity surface defect, which is a separation of the metal tongue-shaped forms, united with the base metal on one side, formed by rolling or flaws traces of a deep cleaning on the slabs. Need to: improve the quality of cleaning the workpiece. Bundle defect leaf surface in the form of cracks on the edges and ends formed due nesvarivaemosti metal if it sites , non-metallic inclusions and internal discontinuities.