C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
6/211
C04B 35/48 (2006.01) B22D 41/46 (2006.01)
Patent
CA 1166803
Abstract of the Disclosure The invention relates to a metallurgical well powder having reduced tendencies to hinder the flow of molten metal, by packing and jamming the opening, in a steel ladle for example, through which said molten metal will be teemed upon tapping said ladle. The powder has essentially the following composition: natural zircon sand (80 to 200 mesh) 25 to 60% by wt. zircon, <325 mesh 40 to 70% by wt. zircon, <600 mesh 0 to 15% by wt.
395833
Ferro Corporation
Smart & Biggar
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