Spool made of a thermoplastic material for the winding of winding material, as well as to a method for manufacturing the same

A spool for winding strand-shaped material, comprising:

• flange discs having an outer flange surface and an inner flange surface, each of which has a central through bore that is surrounded by an annular recess within the inner flange surface, and
• a one-piece tubular spool core,
• wherein the spool core comprises a tube, end surfaces of which are connected in a materially bonded manner on an annular wall located within the annular recess of the inner flange surfaces of the flange discs,
• wherein at least one channel is provided adjacent to the annular wall in the annular recess for receiving liquefied connection material,
• wherein the spool core has approximately the same diameter as the annular wall and is bonded in the annular recess by said connection material, and
• wherein the diameter of the annular recess is greater than that of the central through bore of the flange surfaces.