Method manufacturing pipe section for heat-insulated pipe conduit

摘要

The invention relates to a process for manufacturing individual pipe sections of a pipe system comprising a product pipe (1) and at least one duct (5) accompanying the product pipe (1), said product pipe (1) and said duct (5) being provided with an insulation (3) surrounded by a jacket pipe (2). The following procedural steps are proposed to produce practically any duct layout along the product pipe (1) in a simple and economical manner: (a) arrangement of at least one core (7) having at least the external contour of the duct (5) in such a manner on the outer surface of the product pipe (1) that the duct (5) formed by the core (7) is open with respect to the product pipe (1) at least in a linear manner along the length of the duct (5); (b) insertion of the unit comprising the product pipe (1) and the core (7) into the jacket pipe (2); filling of the free duct cross-section of the jacket pipe (2) with insulating material which can only flow when in the processing state.