Cored wire with a content of passivated pyrophoric metal, and th

Details Cored wire with a content of passivated pyrophoric metal, and th Cored wire with a content of passivated pyrophoric metal, and th

1992-11-20

1993-11-23

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

75328, C23F 1102

Patent

active

052640230

ABSTRACT:
The invention concerns a cored wire comprising a metal tube and a filling of magnesium or other pyrophoric metals passivated with from 0.5 to 5% by weight of organic nitrogen compounds. As the passivating agent, compounds from the series of the s-triazine and/or guanidine derivatives, preferably from 2 to 5% by weight of dicyandiamide, applied by means of an adhesion promoter, are preferred. The wires used in accordance with the invention serve to produce cast iron with spheroidal and vermicular graphite, to desulphurize pig iron melts or to produce metal alloys.

REFERENCES:
patent: 4897114 (1990-01-01), Neuer

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