Apparatus for making amorphous metal strips

Details Apparatus for making amorphous metal strips Apparatus for making amorphous metal strips

1992-03-18

1992-09-08

Lin, Kuang Y.

Metal founding

Means to shape metallic material

Continuous or semicontinuous casting

164429, B22D 1106

Patent

active

051449994

ABSTRACT:
An apparatus for continuously making an amorphous metal strip used, for example, as a blank for a voice magnetic head, deposits molten metal from a nozzle onto the surface of a cooling roll under a fixed pressure and while the cooling roll rotates, the molten metal is rapidly cooled and solidified on the cooling roll. A rotation speed control adjusts the rotation of the cooling roll so that the speed is gradually reduced during the manufacturing process. The nozzle may be provided at an angle to the surface to the cooling roll with the nozzle opening opposing the direction of rotation. Alternatively, the nozzle may be provided perpendicular to the surface and off the center access of the cooling roll opposite the rotating direction of the cooling roll. In this embodiment, the tip of the nozzle is shaped with an angled opening. Moreover, the surface of the cooling roll may have a roughness greater than a mirror-smooth surface.

REFERENCES:
patent: 3345738 (1967-10-01), Mizikar et al.
patent: 4142571 (1979-03-01), Narasimhan

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