| 摘要 |
PURPOSE:To prevent the inner part of a coil from causing coil bending without using any special sleeve and to improve the yield of products by coiling a silicon steel sheet so that the part not rolled by final rolling is coiled first and by subjecting the resulting coil to finish annealing. CONSTITUTION:A silicon steel sheet 3 subjected to decarburization annealing is coiled so that the part 3b not rolled by final rolling is coiled first. The unrolled part 3b is not used as the product part 3a. The resulting coil is subjected to final finish annealing to obtain a grain-oriented silicon steel sheet of 0.15-0.25mm product thickness. |
