Method of producing thin metal ribbon

Details Method of producing thin metal ribbon Method of producing thin metal ribbon

1987-10-15

1988-09-06

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164479, 164423, B22D 1106

Patent

active

047684585

ABSTRACT:
A method of manufacturing an amorphous metal sheet or ribbon which comprises extruding a molten metal from an orifice of a nozzle and directing the extruded molten metal onto a moving chill surface to rapidly cool and solidify the metal thereby forming said sheet or ribbon; said orifice being a rectangular slit defined by side walls and a front lip and a back lip arranged in front and behind the slit in the direction of movement of the chill surface below said nozzle; said chill surface moving a speed of 10 m/sec to 50 m/sec and being spaced from the front lip by a gap length of from 100 .mu.m to 600 .mu.m and the width W.sub.F of the front lip measured in the direction of movement of the chill surface being represented by the relationship W.sub.F .ltoreq.W, wherein W represent the width the slot in the nozzle.

REFERENCES:
patent: 4221257 (1980-09-01), Narasimhan
patent: 4386648 (1983-06-01), Hilzinger et al.
patent: 4479528 (1984-10-01), Maringer

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