Amorphous alloy ribbon and method of producing the same
AssigneeHitachi Metals, Ltd.
InventorsHiroshi Shibasaki, Takayuki Motegi, Hajime Itagaki, Jun Sunakawa, Yoshio Bizen
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Abstract
The invention provides a method of producing an amorphous alloy ribbon, the method including a step of producing an amorphous alloy ribbon by discharging a molten alloy through a rectangular opening of a molten metal nozzle having a molten metal flow channel along which the molten alloy flows, the opening being an end of the molten metal flow channel, onto a surface of a rotating chill roll, in which, among wall surfaces of the molten metal flow channel, a maximum height Rz(t) of a surface t, which is a wall surface parallel to a flow direction of the molten alloy and to a short side direction of the opening, is 10.5 μm or less.
Claims5
A method of producing an amorphous alloy ribbon, comprising:
- a step of producing an amorphous alloy ribbon by discharging a molten alloy through a rectangular opening of a molten metal nozzle having a molten metal flow channel along which the molten alloy flows, the opening being an end of the molten metal flow channel, onto a surface of a rotating chill roll,
- wherein, among wall surfaces of the molten metal flow channel, a maximum height Rz(t) of a surface t, which is a wall surface that is parallel to a flow direction of the molten alloy and to a short side direction of the opening, is 10.5 μm or less, and
- wherein, among wall surfaces of the molten metal flow channel, a maximum height Rz(s) of a surface s, which is a wall surface that is parallel to a flow direction of the molten alloy and to a long side direction of the opening, is from 20.0 μm to 60.0 μm.
Dependencies are inferred from the claim text.