MODIFIER FOR WELDING MATERIALS Russian patent published in 2017 - IPC B23K35/36 C22C1/05 B82Y30/00 

FIELD: metal processing.

SUBSTANCE: invention can be used in composition of flux cored wires, coated electrodes and fluxes for welding and surfacing. Modifier contains nano-powder of a refractory compound, selected from a group, including carbide, nitride, oxide, carbonitride, oxycarbonitride of a metal, as an inoculator and a protector. Protector used if flux, consisting of a mixture of fluorides and chlorides of metals, selected from a group including sodium, calcium, potassium, barium, lithium and magnesium, as well as binder in form of metal silicates of said group in amount of 7–13 % from weight of inoculator. Modifier contains components in following ratio, wt%: nanopowder of refractory compound 30–50, flux – balance.

EFFECT: technical result consists in improvement of mechanical and operational properties of weld and weld metal due to increased metallurgical efficiency of modifier.

1 cl, 2 dwg, 2 tbl, 1 ex