Manufacturing method of soft tin-plated original plate by continuous annealing

摘要

The method is characterized by (i) reheating steel slab to 1050-1150 deg.C for 1 hour, steel slab comprising 0.03-0.05 wt.% C, 0.01-0.3 wt.% Mn, 0.01-0.06 wt.% solution Al, not more than 0.004 wt.% N, 0.001-0.004 wt.% B and balance Fe, (ii) hot-rolling at finishing rolling temperature of above Ar3 point, (iii) coiling at 550-650 deg.C, (iv) cold-rolling to 85-90%, and (v) continuous annealing at 65-720 deg.C for 30-40 seconds.