Against - the form of the bender provided for to several diameters of the tube comprising at least one slide or a diabolo possessing a profile special limiting the deformation of the section of the tube during the bending

摘要

The pipe-bending die comprises one or more diabolo-shaped slides or rollers, formed from a rectangular block or roller with a groove in one side. The bottom (1) of the groove is a segment of a circle, while the profile of the groove sides is formed by a series of arcs (2). The radius of the bottom can be equal to that of the smallest-diameter pipe which can be handled, while the arcs forming the sides can be of a radius corresponding to the largest.