Nv Bekaert Sa

Ben Vandenbroucke

Ann Lambrechts

Geert Braekevelt

Nadine Van De Velde

Peter Galle

John Segur

A strip () intended for the reinforcement of the wall of high pressure hoses or flexible pipes is presented. The strip () comprises multiple wires () arranged side-by-side and held together by means of a hardened adhesive () originating from a waterborne dispersion. Different embodiments are presented wherein the wires () are embedded in the hardened adhesive (), or wherein only one side of the strip () is covered with hardened adhesive () or wherein the hardened adhesive () is present only between the wires () and not on the surfaces (SS) delineating the strip (). In one preferred embodiment the wires () are flattened with the flats being parallel to the surfaces (SS) of the strips ().

Strip for reinforcement of a hose and a method of manufacture thereof

A high pressure hose having steel wires with different load elongation properties, which are introduced into the subsequent reinforcement layers of the hose. The difference in load elongation is quantified by the E-ratio of the wire that is equal to the tensile strength divided by the elongation at break. The steel wires of the radially outermost steel wire reinforcement layer have the highest E-ratio, while the radially innermost steel wire reinforcement layer has the lowest E-ratio. The E-ratio of any steel wire reinforcement layer is not lower than the E-ratio of any inner laying steel wire reinforcement layer. The E-ratio of the steel wires can be influenced by either a thermal treatment or by a mechanical treatment. In the mechanical treatment crimps or bends can be introduced into the wire by guiding them through a preforming device.

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Anzegem, Belgium

Ben Vandenbroucke