| 摘要 |
A method for producing a sheet or strip suitable for making a can by swaging and stretching, using a steel comprising less than 0.008 wt.% of carbon, 0.10-0.30 wt.% of manganese, less than 0.006 wt.% of nitrogen, 0.01-0.06 wt.% of aluminium, less than 0.015 wt.% of phosphorus, less than 0.020 wt.% of sulphur, less than 0.020.wt % of silicon, and no more than 0.08 wt.% of one or more elements selected from copper, nickel and chromium, the balance being iron and residual impurities. According to the method, a slab is hot-rolled into a hot-rolled sheet or strip less than 3 mm thick, then the hot-rolled sheet or strip is cold-rolled with a draught of 83-92 %, subjected to recrystallisation annealing and finally cold-rolled again with a draught of 10-40 %. |
