METHOD FOR RECOVERY OF DUCKFOOT WITH SIMULTANEOUS HARDENING Russian patent published in 2025 - IPC B23P6/00 B23K9/04 A01B35/20 

FIELD: agriculture.

SUBSTANCE: method for reconditioning a duckfoot with simultaneous hardening is carried out by layer-by-layer plasma surfacing of a duckfoot in the shape of its 3D model to form a working surface of a duckfoot in the following modes: plasma arc current I_a = 140 A; consumable electrode arc current I_e = 250 A; arc voltage U = 35 V; wire feed speed V_wire = 5.8 m/min; burner movement speed V_sur = 88 cm/min; volume of gas supplied to welding burner Q_pr = 6.5 l/min; volume of gas supplied to plasma-forming nozzle, Q_pl = 3 l/min. Wear-resistant material in the deposited flux cored wire is mixture of 43-48% of an iron-carbon base, which includes a cladding material in the form of steel “09Г2С” and a filler in the form of manganese cast iron, modified with cerium, with particle size of 30-40 mcm, as well as 50-55% of hardening phase in form of tungsten carbide alloy “ВК-6” with particle size of 10-15 mcm and 2% of aluminium oxide nanopowder Al₂O₃ with particle size of 50 nm.

EFFECT: increasing the hardness and wear resistance of restored duckfoot of soil-cultivating machines under conditions of intensive abrasive wear.

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