METHOD OF PRODUCING PRECISION TUBES AND DEVICE TO THIS END Russian patent published in 2014 - IPC B21C1/00 

FIELD: process engineering.

SUBSTANCE: proposed method comprises cold tube rolling at reciprocating working stand with rolls and sizing by drawing. Production of different-length hardly-strained materials at whatever angles tube turn angles at cold Pilger rolling with increased billet feed is ensured by tube are sized by drawing in synchronism with tube biller cold rolling with reciprocation of yoke with rotary die box and die. Device comprises driven reciprocating stand with rolls, tube billet feed and turn mechanism and mechanism for sizing by drawing. Said mechanism for sizing by drawing is mounted directly behind working stand and composed of the body with guide and driven reciprocating yoke with rotary die box and die. Sixing mechanism yoke drive is composed by solenoid case and encased coil.

EFFECT: longer life, decreased number of transfers, higher efficiency.

3 cl, 1 dwg