Methods of producing and using amorphous mother alloy
AssigneeKawasaki Steel Corporation
InventorsTakao Hamada, Nobuo Tsuchiya, Yo Ito, Toshihiro Inatani, Yoshiyasu Takada, Mitsuo Sumito, Toshimitsu Koitabashi, Hideshi Katayama
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Abstract
A method of producing amorphous mother alloy is disclosed, which comprises charging raw material, carbonaceous reducing agent and secondary material into a smelting furnace and then smelting to produce Fe-B-Si series molten metal having a B-Si composition range which lies within an area represented by the trapezoidal area abcd shown in FIG. 2 of the accompanying drawings. The amorphous mother alloy is used to produce an amorphous starting material by diluting with molten steel.
Claims2
In a method of producing amorphous mother alloys by charging a mixture of raw material, carbonaceous reducing agent and secondary material into a furnace and smelting it to produce Fe-B-Si series molten metal having a B-Si composition range which lies within an area represented by the trapezoidal area abcd shown in FIG. 2 of the accompanying drawings, the improvement wherein B, Si and Fe contents contained in said mixture to be charged into said furnace are adjusted so as to satisfy 0.4<B.sub.2 O.sub.3 /SiO.sub.2 <2.5 and 0.08<SiO.sub.2 /Fe.sub.2 O.sub.3 on a weight conversion of each oxide, and the resulting molten metal satisfies 1/4<Si/B<1 and B+2/3Si>30 on atomic %.
Dependencies are inferred from the claim text.