Continuous Pickling line and Tandem cold mill equipment having hele puncher

摘要

The present invention relates to a continuous pickling rolling equipment, and more particularly, to a continuous pickling rolling equipment having a hole puncher for drilling an identification hole to be an identification mark for distinguishing the type of coil supplied.;The present invention is a continuous pickling rolling equipment comprising a pickling device for removing a hot rolled coil surface scale using hydrochloric acid, and a cold rolling device for rolling a coil having passed through the pickling device to a target thickness. And a pair of hole punchers capable of punching identification holes before and after the welded portion welded by the welding portion and the welded portion welded by the welded portion, wherein the pair of hole punchers are formed to allow replacement of the punch tool. The punch tool includes a fixed part mounted to a hole puncher, a body part extending downward from the fixed part, a punch blade having a smaller diameter than the body part, and a neck part to which the body part and the punch blade are connected. It provides a continuous pickling rolling equipment comprising a tapered reinforcement formed in the.;Continuous pickling rolling equipment, hole puncher, punch tool