METHOD OF MAKING COMPOSITION ADDITIONAL WIRE FOR OUT-OF-FURNACE TREATMENT OF LIQUID STEEL Russian patent published in 1997 - IPC

FIELD: production of additional wire. SUBSTANCE: method comprises steps of making bimetallic wire by application of aluminium belt on calcium core and pressure welding of lengthwise seam of envelope; twisting stranded rope of bimetallic wire, compacting it by reduction in roller drawing dies; applying steel envelope onto reduced rope by drawing belt and rope in die rotating around drawing axis. Rope is compacted at reducing it by 20-27% of area of circle describing rope cross section before compaction. At least one strand of alloying metal is placed in addition to said core. EFFECT: enhanced efficiency. 2 cl, 5 dwg