method and device for the manufacture of conical, rotationssymmetrischen hohlkoerpern

摘要

For producing elongated hollow bodies which are round in cross-section, numerous filaments (6) are clamped parallel to one another distributed round the internal circumference of the body (30) to be produced, so that a winding core results which is subsequently wound, so that it represents a lost core. During winding, the thus longitudinally clamped filaments of the winding core are, because of the winding tension, deflected inwards so that the hollow body takes on the form of a hyperboloid. By cutting through a hollow body of this kind in its centre, poles can be produced which serve, for example, for carrying electrical lines. These poles are distinguished by an especially high strength. IMAGE