STRAIGHTENING METHOD OF MAGNESIUM PIPE

摘要

The present invention relates to a method of straightening a magnesium (Mg) pipe, capable of straightening the Mg pipe. An objective of the present invention is to ensure precise roundness, straightness, and cylindricity by pressing a bending-deformed pipe using a pressing member. To this end, according to the present invention, the method of straightening the Mg pipe includes the steps of: mounting a Mg pipe (1) to be straightened between first and second fixing tables (20,30) (S10); assembling a straightening block (43) with respect to a heating plate (41) of a plurality of pressing member (40) arranged at both sides of the Mg pipe (1) (S20); setting a movement distance of the pressing member (40) suitably for a diameter of the pipe (1) (S30); heating the heating plate (41) by applying power to a heater (42) installed in the heating plate (41) (S40); pressing the Mg pipe (1) by horizontally moving the pressing member (40) toward the Mg pipe (1) (S50); moving the pressing member (40) away from the Mg pipe (1) (S60); and pressing the Mg pipe (1) using the pressing member (40) after rotating a pipe fixing part (21) of the first fixing table (20) at a predetermined angle.