During the rolling process of cold-rolled strip steel, for the sake of process requirements, palm oil or similar artificial synthetic oils are usually used as lubricants. This lubricant will leave an oil film on the surface of the strip steel. When this oil film undergoes annealing in the annealing furnace, due to heating decomposition, carburization phenomenon and residue formation will occur, which will affect the composition and surface cleanliness of the strip steel, and subsequently affect the quality of subsequent processing. The function of this unit is to clean the surface of the strip steel using chemical and electrochemical methods to meet the quality requirements for subsequent processing. This electrochemical degreasing unit can also unwind the cold-rolled steel coil, cut off the excessively thick part at the tail of the strip steel, adjust the weight of the steel coil, and roll it with appropriate tension.
Overall configuration of the unit:
◆ The unit is horizontally arranged, with the circulation system placed on the drive side, which is conducive to threading, installation, operation, and maintenance.
◆ The electrolytic cleaning device adopts medium current density and has high cleaning efficiency.
◆ The circulation system is equipped with automatic temperature, liquid level, and concentration control.
◆ The rinsing section is a three-level brushing and rinsing process, with the final rinsing tank continuously supplying water to ensure the cleaning quality of the finished steel strip.
◆ The height of the brush rollers is adjusted synchronously by the cylinder.
◆ The inlet section is equipped with an outer diameter and width detection for steel coils, enabling automatic winding.
◆ The brush rollers and squeeze-drying rollers at the cleaning section use a changing trolley, ensuring that the production line can quickly and conveniently change the rollers.
◆ To ensure the tension stability of each section of the unit and the reliability of the unit operation, two tension rollers are set before and after the process section.
◆ The unwinding machine of the unit is equipped with an automatic CPC deviation correction device, and the winding machine is equipped with an automatic EPC edge centering device, ensuring the high-speed and smooth operation of the steel strip and achieving high-quality winding results.
