METHOD FOR MANUFACTURE OF FIREARM WEAR-RESISTANT BARREL Russian patent published in 2001 - IPC

FIELD: war equipment, in particular, manufacture of rifle-gun armament, applicable for repair-restoration operations. SUBSTANCE: the method consist in application of ultradispersed powder or its mix with the process media onto the surface of each shell and inner surface of the barrel before each shot of the series consisting at least of 3 to 5 rounds, the ultradispersed powder is prepared of natural minerals or of a mix of natural minerals of a number of laminated silicates comprising various structural modifications of compound Mg₃[Si₂O₅](OH)₄. As a result, ensured is modification of the barrel inner surface with formation of specific metalloceramic phases resisting to corrosion and wear, which enhances the ballistic characteristics of firearm. EFFECT: enhanced range of flight and wounding energy of the shell, improved close grouping of shots for a long period of time, enhanced survivability of firearm. 3 cl, 4 ex