Coflexip

Technip France

Michel Paul Morand

Jean Hardy

Mickaël Guignon

An extrusion facility () includes an extrusion screw (), capable of providing a heat-softened viscous plastic material, and an extrusion (). The extrusion head includes an annular chamber () that is capable of receiving viscous plastic material. The viscous plastic material, provided by the extrusion screw, has, at a constant temperature, a viscosity variable from a value &#x3bc;at a constant value &#x3bc;during a given period so that &#x3bc;&#x3e;&#x3bc;. A buffer chamber () between the extrusion screw () and the extrusion head () to store the viscous plastic material during the given period in order to enable the plastic material to reach the viscosity value &#x3bc;before being injected into the extrusion head ().

Facility for extruding plastic sheath

It is of the type comprising, from the inside to the outside, a flexible metal tube having a helical winding of turns, an internal sealing sheath arranged around the said flexible metal tube, at least one armouring ply wound around the said internal sealing sheath and at least one external sealing sheath , the internal sealing sheath being extruded onto the flexible metal tube using extrusion means, characterized in that it furthermore consists in heating the said flexible metal tube upstream of the extrusion means and to a temperature below 100&deg; C.

Method for manufacturing a flexible duct

Flexible flowline for conveying fluids

The present invention relates to a flexible tubular conduit with a jacket or tube made of crosslinked polyethylene, specially crosslinked polyethylene, and a method for manufacturing the conduit. A jacket or tube is made from polyethylene crosslinked by hydrolysis.

Growing community of inventors

Duclair, France

Michel Paul Morand