A method for manufacturing a heating resistor in the form of a net, a mesh produced by the method, its use in the welding of the joined pipes and the transverse juncture of conduits which are assembled in this way, ogdermed equipped, electro-weldable connection plug

摘要

This is an electrically conductive heating net which is adapted to form a resistance and which is substantially in the shape of a collar (30) defining, by construction, a central orifice (35). The net may comprise one or more single- or multi-strand wires (31). Application in particular to the thermal butt-welding of tubes or of pipelines and of tap-offs, made of plastic. IMAGE