HIGH-PRESSURE CYLINDER AND METHOD OF ITS MANUFACTURE Russian patent published in 2000 - IPC

FIELD: plastic metal working. SUBSTANCE: high-pressure cylinder may be used for long-time storage and transportation of compressed and liquefied gases. It has cup 1 with neck 2 and bushing 6. Internal surface 3 of neck 2 contacts surface 4 of swelling 5 of bushing 6 which may be intermittent or circular. Neck 2 is coupled to bushing 6 by means of circular weld 7. Internal surface 3 of neck 2 contacting surface 4 of swelling 5 of bushing 6 and surface 4 of swelling are made conical. Cylinder manufacturing method includes orientation of bushing 6 relative to cut by its arrangement inside cup, formation of neck 2, moving of bushing in direction of neck till its thrusts upon internal surface 3 of neck, attachment of bushing to neck, and application of sealing circular weld 7. EFFECT: enhanced reliability. 2 cl, 2 dwg