| 摘要 |
PROBLEM TO BE SOLVED: To provide an alloy in which variation of strip thickness in a strip longitudinal direction and a width direction can be made small over a casting even when a difficult gap control, is not carried out, in an iron-base amorphous alloy manufactured with a single roll method or the like. SOLUTION: This alloy is composed by at.% of 78-83% Fe, 2-3% Si, 616 B, 0.2-4% C, 2-12% P and the balance inevitable impurities and has little variation of the strip thickness resulting from the gap variation. It is desirable that the difference between the maximum strip thickness and the minimum strip thickness in the same heat, is <=10% of the strip thickness. Thus, the strip having good strip thickness distribution can be manufactured at good yield and the productivity is improved. The material characteristic is not changed in comparison with the conventional material and the alloy cost does not become high. |
