Scale Breaker Work Roll

Working principle of scale break: Using iron matrix and oxidation of metal cladding material performance difference, adopt the method of mechanical flex, substrate material force to produce certain elastic-plastic deformation, the surface of the oxide sheet is not plastic and the failure strength is low, and poor adhesion to iron matrix, in this way, when the oxide sheet can not adapt to the shape change of the metal and the internal stress caused by greater than its failure strength, it will be broken.  When the work roll strip passes through the bending roller, the upper and bottom surfaces are in different stress states, which eventually make different forms of oxide sheet spalling.