Method for adopting belt spinning of disc-type single roller to prepare amorphous alloy thin belt
An amorphous alloy, disk-type technology, applied in the field of thin alloy strip preparation, can solve problems such as difficult strip formation, air bubbles, thin strip Rayleigh defects, etc., and achieve the effect of good strip formation performance and large melt spreading area
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[0047] Example 1:
[0048] A method for preparing a rapidly quenched amorphous alloy ribbon includes batching, smelting, secondary smelting, spraying, and recovery. The mass percentages of the chemical composition are: 21.57% Sm, 72.84% Fe, 1.66% Zr, and 3.93% Co.
[0049] Use 99.5% metal samarium, industrial pure iron, metal cobalt, and metal zirconium as raw materials, and use intermediate frequency vacuum induction melting furnace to smelt. Before smelting, vacuum the vacuum chamber first, and then use high-purity argon as protective gas to avoid alloy oxidation . The melting temperature is 1600°C. The second melting is carried out in the induction ladle, and the spray band pressure is established in the nozzle package, and the spray band pressure is 0.05Mpa. The protective atmosphere pressure is 0.01Mpa.
[0050] In the band spraying step, the nozzle and the cooling roller form a dynamically stable flat molten pool that spreads in two directions, and the temperature of the mol...
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[0058] Example 2:
[0059] The cone-shaped fast-setting thin ribbon method used in this embodiment produces high-performance Sm 1.0 Zr 0.3 Fe 8.1 Co 0.6 Fast-setting thin strip, the thickness and width of the thin strip are shown in Table 2. The difference is that the rotation speed of the roller edge is 40m / s, and the others are as in Example 1.
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