Study on domestic traditional cold rolling process

The cold rolling process is as follows:

Acid rolling line: hot-rolled coil-uncoiling by cold-rolled uncoiler-straightening head by straightener-shearing head and tail-welding by welder-crescent shearing seam-entering looper-descaling machine-pickling tank-washing tank-hot air drying-intermediate looper-crescent shearing-disc shearing-exit looper-entering finishing mill-coiling machine thickness gauge;

Quenching line: acid rolling-uncoiling by uncoiler-straight head machine-cutting head and tail-welding by welder-crescent shearing seam-alkali spraying-alkali brush-spot cleaning-water brush-water spraying-hot air drying-inlet looper-preheating of annealing furnace-heating-soaking-cooling-outlet looper-straightener-disc cutter-surface quality inspection-electrostatic oiler.

Galvanizing unit: acid rolling coil or annealing coil-uncoiler-straightener-shear welder-alkali washing-water washing-inlet looper-annealing-zinc pot-air knife-cooling tower-water quenching tank-passivation treatment-surface inspection-electrostatic oiling-shearing-coiling by coiler.