FLUX CORED WIRE Russian patent published in 2020 - IPC B23K35/368 

FIELD: technological processes.

SUBSTANCE: invention relates to the field of electric arc welding of wear resistant alloys, in particular to the composition of a flux cored wire, and can be used to increase resistance of parts of equipment and tools operating in conditions of intense wear at high temperatures of up to 800°C with cyclic impact loads. Powder wire for facing of hot forming tool operating in conditions of intense wear at temperatures up to 800°C with cyclic impact loads, consisting of low-carbon steel shell and powder charge, contains, wt%: carbon ferrochromium - 9.0-12.0, manganese - 4.0-6.0, copper - 2.0-4.0, ferrovanadium - 2.0-4.0, ferrotitanium - 2.0-3.0 , ferroniobium - 2.0-3.0, boron nitride - 0.5-1.5, titanium diboride - 1.0-2.5, zirconium diboride - 0.5-1.25, sodium silicofluoride - 0.5-0.8, iron powder - 4.0-21.5, steel shell - balance. Surfacing by powder with above described charge can be performed in argon or by hidden arc welding.

EFFECT: metal produced by the proposed flux cored wire has high hardness, impact resistance, heat resistance, resistance to thermal erosion and wear resistance, which makes it possible to considerably increase resistance of pressing tool of hot deformation under conditions of long cyclically varying temperature-force action.

1 cl, 2 tbl