| 摘要 |
FIELD: firearms. SUBSTANCE: invention may find use in optical sighting fixtures for firearms. Problem of manufacture of sighting mark with improved mechanical characteristics is solved by galvanic growth of copper from sulfate electrolyte on conductive matrix with subsequent taking of copies from matrix. Sulfate electrolyte is used for preliminary cathode treatment of matrix before galvanic growth in ethylenediamine copper plating electrolyte with current density 1.0-2.0 A/sq.dm by electricity quean 8.0 K/sq.dm. Galvanic growth is conducted from sulfate electrolyte containing microbalancing additive which makes it possible to improve sharpness of faces, accuracy of sighting, mechanical characteristics of sighting mark and prolongs 1.4-1.5 times its service life. EFFECT: improved sighting accuracy, prolonged service life of sighting mark. |
