Pickling method of titanium slab and titanium slab manufactured using the same

摘要

PURPOSE: A pickling method of titanium slab and titanium slab manufactured using the same are provided to enable a pickling process using the existing stainless steel facility by implementing one or more times of grinding using brushes between annealing and pickling processes or during the pickling process. CONSTITUTION: A pickling method of titanium slab is as follows. One or more times of grinding using brushes(33a,33b,33c) between an annealing process and a pickling process(30) or during the picking process. In the grinding process, the brushes are heavy brushes or abrasive brushes and titanium slab is pickled with sulfuric acid. The number of rotation of the brushes ranges from 980 rpm to 1020 rpm.