Parameter setting and reeling method of thermal tandem rolling stainless steel band reeling equipment

Abstract

The invention relates to a parameter setting and reeling method of thermal tandem rolling stainless steel band reeling equipment. The method sets the following parameters: an advance speed set value of each sets of roller ways=a final finish rolling frame speed set value*(a total roller way advance rate+a corresponding grouped advance rate); a lagged set speed value of each sets of roller ways=a final finish rolling frame speed set value*a roller way lagged rate; the setting of the openness of a side guide plate; the pressure coefficient of the side guide plate of 0.5-0.8; the added value of the side guide plate of 0 to +15mm; and the settings of a pinch roll: calibration of the pinch roll of the reeling machine by guaranteeing normal calibration, the advance rate and the lagged rate of the pinch roll, the pressure coefficient of the pinch roll, the diameter of an upper roll of the pinch roll of the reeling machine, and the diameter of a lower roll of the pinch roll of the reeling machine. In the reeling method, a computer controls reeling equipment to reel according to the set parameters. The parameter setting and reeling method of thermal tandem rolling stainless steel band reeling equipment improves the appearance and surface quality of steel rolls.

Description

technical field [0001] The present invention relates to the parameter setting and coiling method of a hot continuous rolling stainless steel strip coiling equipment, specifically, it is the parameter setting of the relevant main equipment when the hot continuous rolling mill is coiling the hot rolled steel strip, the parameter The method of coiling the hot-rolled steel strip after setting. Background technique [0002] With the demands of the international and domestic steel markets, the applicant's variety structure has undergone significant changes, the proportion of stainless steel has increased year by year, and mass production of ≤ 3.0mm hot-rolled stainless steel strips, in order to build the world's most competitive stainless steel enterprise , the requirements for the quality of stainless steel products are constantly improving, but at present, in the production process of stainless steel, the appearance quality of coils is poor, especially in the actual production o...

AI Technical Summary

Problems solved by technology

[0002] With the demands of the international and domestic steel markets, the applicant's variety structure has undergone significant changes, the proportion of stainless steel has increased year by year, and mass production of ≤ 3.0mm hot-rolled stainless steel strips, in order to build the world's most competitive stainless steel enterprise , the requirements for the quality of stainless steel products are constantly improving, but at present, in the production process of stainless steel, the appearance quality of coils is poor, especially in the actual production of 400 series stainless steel, there are many surface and appearance quality problems, mainly stainless steel. The running speed on the G roller table (heat output roller table) is high, the plate shape of the head is unstable, swings from side to side, sometimes to the working side, sometimes to the transmission side, resulting in roll shape defects; Very sensitive, the head of the winding helper roll is not tightly wound after opening, resulting in scrap steel after unwinding; the operation of stainless steel is unstable and the width of the incoming material is unstable, often overflowing, edge strain, edge contusion, and the steel coil is turned from horizontal to vertical. In the vertical position, the edge is easy to fold. Due to the unreasonable setting of parameters such as the advance rate of the roller table, the lag rate of the roller table, and the roll gap, the quality of the roll shape is affected, the pass rate is low, and the scrap rate reaches 0.16%.

These quality problems will affect the further processing and production capacity in the next step, and at the same time affect the yield of steel products