Method of automatic liquid preparation for cold-rolled plate and strip rolling lubrication

Abstract

A rolling and lubricating automatic fluid preparation method for a cold rolled strip comprises a step of the rolling oil T-hour consumption accumulative amount within the interval time of one-time oil adding and a step of automatic oil and water supplementing; and according to the step of the rolling oil T-hour consumption accumulative amount within the interval time of one-time oil adding, according to the computational formula, J I =plate face main consumed oil + magnetic filtering consumed oil + oil skimmer consumed oil. The method has the beneficial effects that automatic control over a rolling and lubricating system is comprehensively achieved, and labor intensity of on-site operators is relieved; the system can achieve the aim that rolling oil and desalted water consumed in the rolling process are properly supplemented, the aim that oil is added in a small-amount multiple-batch manner is automatically achieved, and the maintaining and use requirement of cold rolling emulsified liquid is met; the rolling lubricating oil concentration indeterminacy is improved, after the system is put into use, the cp capability index value of the emulsified liquid concentration working procedure is kept between 1.35 and 1.76, and the standard difference ranges from 0.14 to 0.2; and high rolling oil consumption caused by manual operation in rolling is reduced, and consumption of rolling oil ton steel is reduced by 0.02kg / t.

Description

technical field [0001] The invention relates to the field of steel coil rolling production, in particular to an automatic liquid preparation method for cold-rolled plate and strip rolling lubrication. Background technique [0002] At present, the emulsion is used as rolling lubrication in the cold rolling production process, and the emulsion plays the role of rolling lubrication, cleaning the plate surface and cooling in the production of cold rolled plates. The emulsion is made of rolling oil and desalted water in a certain proportion and recycled. The daily maintenance equipment of the emulsion system includes flat bed filter, agitator, magnetic filter, oil skimmer, mist exhaust fan, etc. The consumption of emulsion in production is mainly due to the residual oil on the surface of the cold-rolled plate and the related daily maintenance equipment taking away part of the rolling oil when it is put into use. The direct contact between the cold-rolled room temperature rollin...

AI Technical Summary

Problems solved by technology

The cold-rolled strip rolling lubrication system does not have the function of automatically adding oil and water according to timely consumption, and the related daily maintenance equipment does not have the function of automatically controlling the start and stop

Therefore, it is necessary to manually replenish oil and desalinate after taking into account the concentration, iron content, conductivity, saponification value, current liquid level and other comprehensive factors after taking the emulsion sample for chemical analysis. Due to manual operation, the rolling production specifications cannot be fully considered. , plate surface structure, production rhythm and system daily maintenance equipment start and stop time on the rolling oil consumption, resulting in fluctuations in the concentration of the emulsion, unstable lubrication performance and product surface quality

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