Process for the production of fine amorphous metallic wires

Claim 1

A process for producing a fine amorphous metallic wire of substantially circular cross-section comprising the steps of: (a) selecting an Fe base alloy comprising: from 0.01 to 75 atom% of one or more groups selected from the groups as set forth below, with the remainder being composed substantially of Fe: (1) 0.01 to 35 atom% of one or more of P, C, Si, B and Ge; (2) 0.01 to 40 atom% of one or two of Co and Ni; (3) 0.01 to 15 atom% of one or more of Cr, Nb, Ta, V, Mo, W, Ti, and Zr; (4) 0.01 to 5.0 atom% of one or more of Mn, Be, Pd, A, Au, Cu, Zn, Cd, Sn, As, Sb, Hf, and Pt; (b) providing a sufficient quantity of said alloy in a molten state; (c) jetting said molten alloy, said alloy having an amorphous substance forming ability, through a spinning nozzle into a cooling liquid contained within a rotary member, whereby said liquid causes solidification of said molten alloy thereby producing said fine amorphous metallic wire; (d) continuously winding upon the inner walls of said rotary member by the action of centrifugal force, the alloy wire thus formed; (e) removing said alloy wire from said rotary member; and (f) passing said alloy wire through a die thus drawing said alloy wire within an area reduction percentage range from about 5% to about 90%.