Method of reconditioning center hoes of tillage row-crop cultivators. RU patent 2443523.

FIELD: process engineering.

SUBSTANCE: invention may be used in reconditioning tillage equipment working tool surfaces. Metal stock is formed in point area and along blade length by electric arc deposition by electrode to produce buffer stock of built-up metal that allows recovery of rated sizes of hoes. Building-up may be carried out both manually and mechanically by electric arc deposition. Hoe is drawn out by hot deformation using forming mandrel that follows hoe point and blade shape. Further hardening is performed by quenching. In buffer metal building-up and drawing-out, thermal processes occur to bring about structural components that increase hardness of reconditioned zone and facilitate increasing resistance to abrasive wear.

EFFECT: longer life due to reconditioning and hardening.

3 dwg

IPC classes for russian patent Method of reconditioning center hoes of tillage row-crop cultivators. RU patent 2443523. (RU 2443523):

B23P6 - Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D0001000000, B21D0003000000; repairing defective or damaged objects by casting techniques B22D0019100000; procedures or apparatus covered by a single other subclass, see the relevant subclass);

B23K9/04 - Welding for other purposes than joining, e.g. built-up welding

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