Method and apparatus for producing amorphous ribbon
AssigneeNippon Steel Corporation
InventorsShigekatsu Ozaki, Takeshi Imai
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Abstract
A method and apparatus are provided for producing an amorphous ribbon by ejecting and rapidly solidifying molten alloy on a circumferential surface of a rapidly rotating cooling roll, wherein the cooling roll is polished online during amorphous ribbon production. When the circumferential surface of the cooling roll after peeling off the ribbon is polished using a polishing member, the circumferential surface of the cooling roll is polished continuously or intermittently across its lateral direction while differentiating the polishing mode in accordance with the surface properties.
Claims4
A method for producing an amorphous ribbon, the method comprising the steps of:
- ejecting and solidifying molten alloy on a circumferential surface of a rotating cooling roll;
- peeling solidified alloy ribbon from the cooling roll;
- polishing the circumferential surface of the cooling roll with polishing members continuously or intermittently across the cooling roll in a lateral direction of the circumferential surface of the cooling roll;
- differentiating the polishing mode in accordance with surface properties of the cooling roll across the lateral direction;
- aligning at least two or more of the polishing members having different polishing characteristics;
- and
- polishing in contact with the circumferential surface of the cooling roll over a length equal to 0.2% or greater of the cooling roll circumference.
Dependencies are inferred from the claim text.