Carbon Steel Continuous Pickling Unit (CPL)

The continuous hydrochloric acid pickling process is adopted to remove the iron oxide layer on the surface of the hot-rolled steel strip and cut off the irregular edges of the steel strip to provide qualified hot-rolled steel materials for the next process. The steel strip after pickling has a pure iron surface and can be cold rolled or hot-dipped galvanized.

Unit characteristics

Continuous pickling unit, with automatic argon arc welding machine and Polin pull straightening machine at the entrance, hydrochloric acid multi-stage shallow groove turbulent pickling process and multi-stage water rinsing process in the process section, disc cutter and electrostatic oiling machine at the outlet section Wait.

Annual production scale: 800,000-1,200,000t/a

Raw material: Carbon steel hot rolled coil

Steel grade: CQ, DQ, DDQ, IF, HSLA, W440-W1300 silicon steel

Raw material specifications: 1.5-6.0mmx width: 650-1650mm

Roll diameter: I.D.Φ760/Φ610mmO.D.MaxΦ2150mm Maximum roll weight: 30t

Hot rolled coiling temperature: Max670 degrees (IF<720 degrees)

Process speed: Max150mpm

Pickling time: 25-30sec

adopt SIEMENS or ABB electrical control system

Production process

Rolling→Uncoiling→Cut-heading→Welding→Entry Looper→Po Lin-Straightening→Pickling→Water Rinsing→Drying→Export Looper→Cutting Edge→Greasing-Splitting Cut→Reel->Unload→Package