Prediction method of pickling time considering pulling-correcting and scale breaking effect

Abstract

The invention discloses a prediction method of pickling time considering pulling-correcting and scale breaking effect. The method comprises following steps: step a. collecting test parameters; step b. establishing an influence coefficient model of pulling-correcting and scale breaking on pickling time; step c. calculating parameters of the influence coefficient model by means of the regression method; step d. establishing a pickling time calculating model considering the influence of pickling solution concentration, temperature and pulling-correcting and scale breaking; step e. calculating pickling time coefficients by means of the regression method; step f. calculating pickling time according to the pickling time calculating model; step g. obtaining a pickling time calculating model from optimal solutions; step h. calculating pickling time in consideration of condition influence. The method of the invention combines the device and technical characteristics of straightening machines of striped steel pickling production line; the calculation method and results of pickling time are more accurate compared with the prior art, and the method solves the problem of on-site production and improves pickling speed of stripped steel.

Description

technical field [0001] The invention relates to a metallurgical method, more specifically, to a method for predicting pickling time considering the effect of stretching, straightening and scale breaking. Background technique [0002] The invention originates from on-site production practice, and in particular relates to a pickling time prediction method considering the scale-breaking effect of stretching and straightening. [0003] The pickling tank is the main equipment for removing the oxide scale on the strip surface in the strip pickling line, and is the key equipment that determines the production capacity of the strip pickling line. The pickling time determines the speed of the strip passing through the pickling tank, so the calculation of the pickling time has practical significance for guiding the operator to control the speed of the strip passing through the pickling tank. When the temperature, concentration and turbulence of the acid solution are constant, the pic...

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Problems solved by technology

[0006] Aiming at the problem that the existing pickling time calculation model in the prior art usually ignores the influencing factors of the tension leveler, the purpose of the present invention is to provide a pickling time prediction method that considers the scale-breaking effect of tension leveling

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