Method for manufacturing a sheath having a particularly circular or oval cross-section, system for implementing this method and method for connecting such a sheath to any device

摘要

The invention relates to the manufacture of sheaths from a steel strip (hoop). The method is characterised in that a sheath is manufactured by bending in order to produce a cylindrical shape having a generatrix parallel to the longitudinal axis of the steel strip (hoop) 4 and the said stiffening wire (thread) 13 is then rolled up helically around the sheath 30 thus obtained over the outer surface of the latter. The invention can be used for manufacturing sheaths for air-conditioning systems. <IMAGE>