| 摘要 |
The invention concerns a method relating to the manufacturing of steel strips, comprising continuous treatment of the steel strip in an annealing furnace (7) at a temperature exceeding the recrystrallization temperature of the steel. The steel strip (4A) is fed into the annealing furnace at a certain feeding-in rate and is drawn out of the furnace at another, higher feeding-out rate, wherein the steel strip is subjected to a pulling force in the annealing furnace at said temperature exceeding the creep limit of the steel at said temperature, resulting in a permanent stretch (elongation) of the steel strip corresponding to the difference between the feeding-out and feeding-in rates, and in a reduction of the cross section of the strip corresponding to the elongation, including a reduction of the strip thickness as well as of the strip breadth. |
