FIELD: agriculture.
SUBSTANCE: plates with two holes are punched. The one-sided working ends of the plate are reinforced by hard facing. Before reinforcement along the perimeter of one or both ends of one side of the plate the openings or slots are made at a depth of 1/2-1/3 thickness of the hammer at a distance of 2.0-2.5 mm from its edges.
EFFECT: increase in the lifetime of the hammers.
4 dwg
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