| 摘要 |
PROBLEM TO BE SOLVED: To stably obtain a product having rectangular cross section with high dimensional accuracy and at low cost and to improve the quality of the product by preventing the product from being scratched by slip. SOLUTION: This method is a method for rolling a wire and bar having the rectangular cross section whose longitudinal and lateral dimensions are different using a 4-roll mill 4 provided with two sets of pairs of 4a, 4a, 4b, 4b which are arranged orthogonally to each other and which differ from each other in the roll width and a pair of rolls 4b, 4b on one side of two sets of pairs of the rolls 4a, 4a, 4b, 4b are not driven.
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