FIELD: heat treatment.
SUBSTANCE: proposed device has insert located in ring lock and unit for axial compression of ring stack made in form of movable and fixed flanges which are connected by means of cylindrical rod with thread and nut. Insert consists of base and two U-shaped bearing plates which are secured on base for turning on axle. Plates are secured by means of bolt with nut for change of angle of inclination ϕ from 0 to 60 deg. depending on position of bolt. Proposed device makes it possible to make piston rings at required curve of radial pressure.
EFFECT: enhanced durability and reliability.
3 cl, 6 dwg
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