Calibration method of 1700mm hot rolling line rough rolling vertical rollers

Abstract

The invention aims at providing a calibration method of 1700mm hot rolling line rough rolling vertical rollers, and belongs to the technical field of steel rolling production processes. According to the technical scheme, the diameter of vertical rollers of the previous time and the opening degree of the vertical rollers are used as benchmark data, under the premise condition of guaranteeing that the magnetoscale absolute values of the work side and the drive side are equal, the opening degree is firstly recorded, then the roller diameter is applied for, relevant data are input into the calibration program according to the value changes of the opening degree of the two sets of front and back vertical rollers, and calibration can be carried out. The calibration method has the beneficial effects that the calibration time is short, precision is high, and no measuring error and deviation are generated; the opening degree does not need to be measured on site, and the safety coefficient of staff work is improved; and error-prevention inspection can be carried out on the roller diameter of the vertical rollers, and production accidents caused by roller diameter errors are eradiated.

Description

technical field [0001] The invention relates to a calibration method for a rough rolling vertical roll of a 1700mm hot rolling line, and belongs to the technical field of steel rolling production technology. Background technique [0002] In the process layout of the hot-rolled strip production line, the vertical roller mill is arranged vertically, and has the functions of auxiliary biting, edge rolling, width fixing and centering, among which the calibration function of the vertical roller mill is more effective. The basis and calibration accuracy also affect the subsequent stability of the slab and the accuracy of the finished product. At present, the 1700mm hot rolling line is a traditional hot rolling line. The rough rolling mill is equipped with a pair of vertical rolls (referred to as E1), which assists the rough rolling flat roll mill (referred to as R1) for biting, edge rolling and width fixing. E1 and R1 are continuously rolled in the odd pass, and E1 is not rolled ...

AI Technical Summary

Problems solved by technology

[0005] Problems existing in the existing technology: (1) The vibration of the E1 pressing cylinder is relatively large, which causes a large measurement deviation, resulting in a large deviation of the control accuracy in the production process

⑵The potential safety hazard is relatively large, the measurement space is narrow, and the light is poor. Once the equipment malfunctions or moves abnormally, there are hidden dangers to the safety of the measurement personnel.

(3) The measurement must be carried out every time the roll is changed, so that the deviation and precision of each time cannot be kept consistent, and the width control precision is reduced

⑷The alignment cannot be guaranteed, which brings difficulties to the rolling operation

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