PROCESS OF MANUFACTURE OF TUBULAR JET PERFORATOR OF MULTIPLE USE

摘要

FIELD: mining industry. SUBSTANCE: process of manufacture of tubular jet perforator includes manufacture of hollow cylindrical tube from alloyed steel, machining of surface of tube and its thermal treatment. Thermal treatment is conducted with simultaneous saturation to concentration 0.6-0.8% with carbon and nitrogen from internal surface of tube to depth of 0.2-0.4 mm at temperature of 840- 860 C. Starting from this temperature tube is hardened in oil and subjected to high- temperature tempering at 550-590 C. EFFECT: creation of adjustable gradient of structural-physical state in thickness of tube wall, density and chemical composition gradients includes. 3 cl, 2 tbl