Formation Causes and Control Measures of the Leveler's Imprint on Medium and Heavy Plate
With the increasing number of the medium and heavy plate production lines at home,the steel plate market competition gradually becomes more fierce,the customers raise higher requirements on the surface quality of me-dium and heavy plate.In the process of the steel plate production,the leveling roll's imprint on plate surface severely af-fects the surface quality of the finish products.The formation causes of the imprint are analyzed in depth and in combi-nation with the grinding experiences of roll sets at site,various measures are taken,i.e.,planning different measuring points for steel plate of different sizes,reducing the holding time of hot plate in the levelling roll set,adding blowing-off device for the external water cooling of the levelling roll set,rapidly evacuating the cooling water inside the cooling water pipe,which significantly reduces the occurence probability of the levelling roll's imprints,improves the surface quality of steel plate and economic benefits.