A Process Optimization Method for Improving Ultra-Thin Steel Strip Strip Strip Strip Pulling and Threading

Abstract

The invention discloses a process optimization method for improving the taking and threading of ultra-thin strip steel, which belongs to the technical field of steel rolling. The process optimization method for improving ultra-thin strip steel taking and threading includes modifying the exit shape of the strip steel in the pickling rolling process to ensure that the shape of the strip steel exit is medium wave IU; the position of the pinch roll at the exit of the rolling mill Adjust and compensate for offset; adjust the working pressure of the pinch roll and increase the working pressure of the pinch roll; optimize the air purge pressure at the outlet of the rolling mill to reduce the friction pressure between the strip steel and the guide plate during the strip threading process; modify the physics of the strip threading guide plate at the exit of the rolling mill structure to reduce friction in the strip threading process; optimize the lead rate and speed of the exit equipment of the rolling mill to ensure coiling. The invention improves the process optimization method for taking and threading of ultra-thin strips, effectively reduces the probability and accidents of coiling and threading of ultra-thin strips at the exit of acid rolling, and effectively improves the volume of ultra-thin strips, especially at the exit of acid rolling. Take strap stability.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a process optimization method for improving ultra-thin strip steel taking and threading. Background technique [0002] The thinnest steel strip produced by acid rolling is 0.15mm, which is the thinnest steel strip rolled by the cold tandem mill in the world. However, when the strip steel with a thickness of 0.15mm to 0.18mm is produced in batches, the flying shear at the exit of the rolling mill cannot automatically pass forward after being cut. Into the coiler mandrel, the steel is piled up at this position before the flying shear and behind the pinch roller before shearing, so that the strip steel cannot pass smoothly into the coiler mandrel. Therefore, in the production of ultra-thin strip steel, threading after cutting is an important factor restricting the smooth production of the production line. Under the existing process system, it is difficult to achieve stable an...

AI Technical Summary

Problems solved by technology

Under the existing process system, it is difficult to achieve stable and reliable high-speed production in the acid rolling process of ultra-thin strip steel, which seriously affects the output, quality and efficiency of the unit, and even causes the production line to stop stacking steel, causing serious economic losses

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