METHOD OF PIPELINE RESTORATION AND DEVICE FOR IMPLEMENTATION THEREOF

摘要

FIELD: mechanical engineering. ^ SUBSTANCE: at first simultaneous cleaning and coating application are followed by simultaneous tamping and coating application. A method is implemented by a device comprising a shaft with centre bosses which accommodates a number of lines of elastic and flexible petals forming cracks on the periphery of the device. ^ EFFECT: extended range of the instruments. ^ 2 cl, 7 dwg