| Along with the development of the market, customer requirements are getting higherand higher, the surface of the strip there is always a variety of defects on the surfacequality of cold rolled strip, strip surface cleanliness is the current hot issue, a direct impactwith the surface quality of the steel strip to improve the surface cleanliness, in principle,there are two ways to increase the cleaning process: First, between the cold-rolled boxannealing process, the second is rolling clean plate. Specific issues of this study focuseson the existence of Tangshan Iron and Steel cold rolled steel cleanliness, using the secondapproach, the impact of technology, equipment and operational control, as well asemulsion of the rolled strip surface cleanliness theoretical analysis and improvement,mainly for the following aspects of the research work, in order to achieve the goal ofimproving the strip surface cleanliness.(1)through the comparative analysis of similar manufacturers home and abroad,found the main reason for lower by Tangshan Iron and Steel cold rolled strip surfacecleanliness and pointed out the direction in order to improve the surface cleanliness of thecold rolled strip.(2)emulsion system configuration on the strip surface cleanliness, to find theproblems in the work of the emulsion system, and gives the emulsion stream, magneticfilters and rinse well the solution to the problem.(3)of the emulsion preparation, cleanliness and emulsion on the cleanliness of thesurface of the cold rolled strip were studied, given the reasonably available to theemulsion formulation and use of program.(4)the roll material and surface state, under the pressure of order allocation processfactors on the strip surface cleanliness impact study, given the influence of various factorson the strip surface cleanliness.Through in-depth study of the above, in practice, take a variety of effective andfeasible measures, and achieved good results, tie strip reflectivity increased significantlyafter page residual oil, residua iron reducing, Tangshan Iron and Steel cold rolled strip the plot became the domestic advanced level. |