Armouring element for unbonded flexible pipe

摘要

The invention relates to an armouring element for an unbonded flexible pipe. The armouring element has a longitudinal axis and an elongated outer shape along said axis. The armouring element further has a longitudinal recess configured for fully or partly taking up a sensor element. The recess has a recess surface area and at least a surface area fixing part of the recess surface area has a surface finish comprising a surface roughness Ra. The invention further relates to an armouring element assembly and an unbonded flexible pipe comprising the armouring element, and a method of producing an armouring element assembly.