FIELD: hair cutting. SUBSTANCE: process of formation of razor blade includes the following stages: making of a ceramic base, mechanical finishing of the ceramic base edge for formation of a sharp edge with faces on it. The profile angle between the latter is less than 30 deg.; heat treatment of the mechanically finished edge decreases surface roughness of subsurface defects. Sputtering-sharpening of the sharp edge makes additional faces, whose profile angle exceeds 40 deg. and provides for a ridge radius of less than 500 . EFFECT: enhanced shaving qualities. 10 cl, 4 dwg
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Authors
Dates
1998-04-10—Published
1991-03-04—Filed