FIELD: machine building.
SUBSTANCE: procedure for strengthening cutting edges of counter-cutting plate of agricultural machine consists in tempering edges of counter-cutting plate in air, where upon on tempered edges of counter-cutting plate there is applied wear resistant coating by electric-spark treatment; coating corresponds to strip of length equal to length of notches of counter-cutting plate and width of H = (1…1.5)h from line of teeth vertex, where h is tooth height, mm and with thickness of wear resistant coating 20-25 mcm. Also, wear resistant coating is applied in two runs of an electrode under hard and soft modes of operation of an installation for electric-spark treatment.
EFFECT: increased service life of cutting parts and increased wear resistance.
2 dwg, 1 tbl, 1 ex
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