VERFAHREN ZUR HERSTELLUNG VON KLINGEN UND DANACH HERGESTELLTE RASIERKLINGE

摘要

A blank of a plurality of vitreous materials is prepared by selecting a first vitreous material which is relatively resistant to chemical etching and grinding it to a desired blade configuration with dimensions which are a multiple of the dimension of the desired end product as represented by a predetermined attenuation ratio, then a second vitreous material which is susceptible to chemical etching is selected and prepared to have a portion complementary to said blade portion of said first material, and the blank comprising both matrials positioned in complementary contacting relationship is heated to about their softening points and drawn down with a desired attenuation to produce a continuous blade ribbon in said first vitreous material of uniform predetermined cross-sectional dimensions. The second material is then etched away from the ribbon comprising the first material and cut into desired blade lengths.