초록 ▼

A method of forming or modifying the cutting edges of razor blades, and apparatus for carrying out the method. The method comprises subjecting a stack of razor blades (12) to ion bombardment from two ion sources (13, 14) in a vacuum chamber (10), the ion sources being located on opposite sides of a

A method of forming or modifying the cutting edges of razor blades, and apparatus for carrying out the method. The method comprises subjecting a stack of razor blades (12) to ion bombardment from two ion sources (13, 14) in a vacuum chamber (10), the ion sources being located on opposite sides of a plane (15) which lies within the stack and parallel to the major surfaces of the blades and the ion sources having the axes of their ion beams directed at the edges of the razor blades in the stack.

대표청구항 ▼

A method of forming or modifying the cutting edges of razor blades, which comprises subjecting a stack of razor blades to ion bombardment from two ion sources in a vacuum chamber, the ion sources being located on opposite sides of a plane which lies within the stack and parallel to the major surface

A method of forming or modifying the cutting edges of razor blades, which comprises subjecting a stack of razor blades to ion bombardment from two ion sources in a vacuum chamber, the ion sources being located on opposite sides of a plane which lies within the stack and parallel to the major surfaces of the blades and the ion sources having the axes of their ion beams directed at the edges of the razor blades in the stack and the ion bombardment being effected with ions of sufficient mass and energy, in relation to the material of which the razor blades are formed, to cause sputter removal of the material of the blades on both sides of the edges thereof to thereby form or modify their cutting edges.