Four-station scale breaker

Abstract

The invention provides a four-station scale breaker which comprises a rack, two bending roller sets arranged on the rack and two straightening roller sets. Each bending roller set comprises an upper bending roller and a lower bending roller, wherein the diameter of the upper bending roller is equal to that of the lower bending roller; each straightening roller set comprises an upper straightening roller and a lower straightening roller, wherein the diameter of the upper straightening roller is larger than or smaller than that of the lower straightening roller; a steel belt passes through the two bending roller sets firstly, and the upper bending rollers and the lower bending rollers operate in a staggered mode, so that edge waves of the steel belt are eliminated while the steel belt is bent; and then the steel belt passes through the two straightening roller sets, the steel belt shape is adjusted through simultaneous operation of the upper straightening rollers and the lower straightening rollers, and C-shaped warped parts and L-shaped warped parts of the steel belt are eliminated. According to the four-station scale breaker, the extension difference between scales on the surface of a raw material steel reel and a base material can be effectively increased, the product quality is improved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of stainless steel production equipment, in particular to a phosphorus-breaking and rust-removing equipment. Background technique [0002] In the existing stainless steel production process, the phosphorus breaker is generally used to increase the difference in extension between the scale on the surface of the raw steel coil and the base metal, and to increase the crack opening of the scale on the surface of the raw steel coil, thereby strengthening the scale. The peeling effect provides better surface conditions for improving the efficiency of subsequent chemical derusting. However, the existing phosphorus breakers have the following defects: [0003] 1. Since there is only one bending roll group, after passing through the phosphorus breaker, the elongation rate of the base material of the raw steel coil is small, and the scale and the base material cannot be separated well, thus affecting the subsequent chemical re...

AI Technical Summary

Problems solved by technology

[0003] 1. Since there is only one bending roll group, after passing through the phosphorus breaker, the elongation rate of the base material of the raw steel coil is small, and the scale and the base material cannot be separated well, thus affecting the subsequent chemical removal. Rust efficiency, so that the final product still has a small amount of rust, which seriously affects the quality of the product

[0004] 2. The straightening roller is fixed by a large roller, and the small roller system moves, and the required plate shape is adjusted by controlling different insertion amounts. Due to the large and fast wear of the raw material steel coil during the phosphorus breaking process, the roller system is replaced frequently ;The production line needs to be shut down to change rolls. Therefore, fixed straightening rolls greatly increase the difficulty of roll change, and the replacement time is very long, thereby greatly reducing production efficiency

[0005] 3. The worm gear is used to adjust the reduction of the roll system. When producing thick plates, due to the large deformation resistance of the steel strip bending, the capacity of the worm gear is limited, and the action speed is very slow. Therefore, it cannot meet the requirements of online phosphorus breakers. The need to tell the opening and closing response

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