Cored wire for treating molten metal by wire injection, comprises an outer casing formed by metal strip, and a filling material, which is in the form of granules and/or powder and which is accommodated in a closed cavity

摘要

The cored wire for treating molten metal by wire injection, comprises an outer casing formed by metal strip (2), and a filling material (3), which is in the form of granules and/or powder and which is accommodated in a closed cavity formed by the casing. The void volume has an oxygen concentration that is reduced in comparison with inert gas as protective gas. The inert gas has high density than oxygen. The inert gas concentration in the void volume is greater than 50 vol.%. Independent claims are included for: (1) procedure for continuous production of cored wire; and (2) device for continuous production of cored wire.