Disclosed is an optimization method of a technological
lubrication system taking
galling prevention as an objective for a tandem cold mill. The method mainly comprises the following computer-executed steps: 1, collecting main equipment and technological parameters of a five-stand tandem cold mill; 2, defining procedure parameters related in the technological
lubrication system optimization procedure; 3, giving initial values of
emulsion flow,
emulsion concentration and
emulsion temperature of a first stand, a second stand, a third stand, a fourth stand and a fifth stand; 4, computing a
friction coefficient mui of each stand in a current technological
lubrication system and rolling schedule; 5, computing rolling pressure, rolling power and slip factors of each stand; 6, computing thermal crown distribution of a working roll of each stand; 7, computing an outlet flatness value of the
tail stand; 8, computing a value of a comprehensive
galling judgment index lambdai of each stand; 9, computing an optimization objective function in the current technological lubrication system; 10, completing optimal setting of the technological lubrication system, taking the
galling prevention as the objective, of the tandem cold mill. By the method, galling defection
occurrence probability of each stand is lowered, and outlet surface quality of
strip steel is improved.