SOLID RIGID RAZOR BLADE Russian patent published in 2020 - IPC B26B21/54 

FIELD: personal care means.

SUBSTANCE: invention relates to razor blades. Solid rigid shaving blade is made of martensitic stainless steel. It includes body with part with cutting edge, main part and bent part. Body part with cutting edge passes in its plane and has cutting edge at one end. Blade has a concave and opposite convex part. Average radius of curvature of curved part at its concave surface lies in range 0.5–1.0 mm. Inner angle measured between axis of part with cutting edge and axis of main part is in range of 95–140°. Thickness measured between inner and outer surface of blade lies in range of 0.07–0.12 mm. Martensitic stainless steel contains carbon with a weight content of 0.50–0.75 %, chromium with weight content 12.7–13.7 %, manganese with a weight content of 0.45–0.75 %, silicon with a weight content of 0.20–0.50 %, traces of other components, balance—iron.

EFFECT: technical result is achievement of optimum plasticity and quality of shaving cutting edge of blade.

4 cl, 2 tbl, 11 dwg