WIRE WITH SILICON CALCIUM-BASED FILLER FOR SECONDARY PROCESSING OF STEEL Russian patent published in 2010 - IPC C21C7/00 B22F7/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to ferrous metallurgy and can be applied in production of wire with silicon calcium-based filler for secondary processing and modification of steel. Pure calcium content in wire is 8-12% of the total filler weight, calcium is contained in granulated form of the following granulometric composition, %: 0.5-1.0 mm size - 20, 2.5-3.0 mm size - 25-30, the rest is 1.0-2.5 mm size. Additionally filler includes aluminium, carbon, phosphor, sulphur and iron in amount of 12 wt % or less. Additionally filler includes granulated magnesium in amount of 0.01-10 wt % and/or rare earth metals in amount of 0.1-5.0 wt %. Method involves measured filling of chute shell with filler by layer-wise laying of pure calcium and calcium-silicon alloy fed to the shell separately.

EFFECT: enhanced homogeneity and stability of chemical compositing of filler along the wire length, increased portion of active calcium not passivised by air humidity in filler, increased degree of calcium recovery during steel processing by wire.

12 cl, 4 dwg