FLUX CORED WIRE Russian patent published in 2011 - IPC B23K35/368 

FIELD: metallurgy.

SUBSTANCE: invention can be used during electric arc surfacing of wear-resistant alloys on the parts operating in conditions of intensive wear at increased temperatures (up to 900°C) with impact loads, for example, parts of hot deformation pressing tool and hot rolling rolls. Wire consists of low-carbon steel cover made from armco iron and powder charge. Wire contains the following component ratio, wt %: nickel 11-13.5; molybdenum 3-5.5; chrome 3-5.5; ferrosilicium 0.8-2.5; ferrovanadium 1.5-3.5; titanium 0.5-1.0; aluminium 0.5-1.0; boron carbide 0.5-1.5; titanium diboride 1.5-2.5; zirconium diboride 0.5-1.5; sodium silicofluoride 0.5-1.0; iron powder 0.5-14.5; steel cover is the rest. Surfacing can be performed under fluoride fluxes or in argon. Neat metal powders are used for production of flux cored wire. Depending on the surfacing method, the charge composition is varied considering alloy transfer efficiencies to surfaced metal.

EFFECT: metal surfaced with flux cored wire has high strength, heat resistance and wear resistance at maintaining plastic properties.

1 dwg, 2 tbl