Emulsion flow optimization method for inhibiting vibration of cold continuous rolling unit

Abstract

The invention discloses an emulsion flow optimization method for inhibiting the vibration of a cold continuous rolling unit, relates to the technical field of cold continuous rolling, and particularlyrelates to the emulsion flow optimization method suitable for the cold continuous rolling unit and taking vibration inhibition as a target. The method is characterized in that the vibration inhibition is taken as a target, on the basis that the over-lubricating oil film thickness critical value and the under-lubricating oil film thickness critical value are provided, and through an oil film thickness model and a friction coefficient model, the emulsion flow optimal set values, taking the vibration inhibition as the target, of racks are obtained. According to the method, the occurrence rate ofvibration defects of a rolling mill is greatly reduced, the production efficiency and the product quality are improved, and great economic benefits are brought to enterprises; and the vibration defects of the rolling mill are overcome, and the surface quality and the rolling process stability of finished strip steel of the cold continuous rolling unit are improved.

Description

technical field

[0001] The invention relates to the technical field of tandem cold rolling, in particular to an emulsion flow optimization method for suppressing vibration of a tandem cold rolling mill. Background technique

[0002] Rolling mill vibration defects have always been one of the difficult problems that plague the high-speed and stable production of on-site cold tandem rolling mills and ensure the surface quality of finished strips. In the past, on-site treatment of rolling mill vibration defects generally relied on the control of rolling mill speed. Although this can reduce vibration defects, it restricts the improvement of production efficiency and seriously affects the economic benefits of the enterprise. However, for the tandem cold rolling mill, the characteristics of its equipment and process determine the potential of suppressing vibration. Therefore, setting reasonable process parameters is the core means of suppressing vibration. Through theoretical rese...

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