| 摘要 |
A manufacturing method of the multi shape strip is provided that the inferiority rate can be reduced and the productivity can be improved. A manufacturing method of the multi shape strip comprises the steps of: a step molding strip including the thick part in the thin part forming the bump type groove on the material strip low surface amount outer side and center; and a step molding a strip(30) including the thin portion of the balance in the strip upper side and rear part. The multi shape strip includes a top roll of the balance in the front side, a counterpoise(5) in central part and a bottom roll(51) having a projection(1) in both outer sides. The projection includes a first slope(2), and a counterpoise(3) and a second slope(4). |
