Development of Full Position Portable Coiled Tubing Straightener
To solve the problems of bending, deformation, complicated, hard to center occurred in the assembly welding of coiled tubing; the coiled tubing Straightener is developed by backward applying the theory of three-point bending. Its prominent features are: pressure head pushes directly from the middle; external circular arc explorators on the two sides rotate and support. It realizes the fast and damage-free straightening of coiled tubing. By replacing pressure head, changing the external circular arc radius of explorators on the two sides and adjusting the distance between two symmetrical support points, it can do the precise straightening of available metal coiled tubing of all specifications.
X. L. Liu and Q. Shang, "Development of Full Position Portable Coiled Tubing Straightener", Advanced Materials Research, Vols. 308-310, pp. 627-631, 2011