METHOD OF STRAIGHTENING ARTICLES SUCH AS TUBES AND PRESS FOR PERFORMING THE SAME Russian patent published in 1997 - IPC

FIELD: straightening equipment and processes. SUBSTANCE: method of straightening tubes comprises steps of placing product onto supports, bending it with the aid of two static efforts acting between said supports in direction opposite to curvature direction; selecting distance between points of effort applying according to relation 2Dmp < t < l/2, where Dmp - outer diameter of tube, mm; l - distance between supports, mm. Press for straightening tubes includes supports, platform and secured to it crossbar with two straightening plungers mounted in parallel relative to axis of press with possibility of motion one relative to another. EFFECT: improved design of press, enhanced quality of straightened tubes due to elimination of tube crumpling in zone of contact of its curved portion with straightening plunger. 2 cl, 4 dwg