초록 ▼

Subsea pipe line sections adapted to be welded together into a continuous subsea pipe line are provided with a weight coating which, apart from its weighting function, also serves to protect the pipes. The weight coating comprises a composite material substantially consisting of a granulated iron or

Subsea pipe line sections adapted to be welded together into a continuous subsea pipe line are provided with a weight coating which, apart from its weighting function, also serves to protect the pipes. The weight coating comprises a composite material substantially consisting of a granulated iron ore in a matrix of a thermosetting resin, covered by a high strength durable plastic tube.

대표청구항 ▼

In a subsea pipe line section of the type including a steel pipe covered with a continuous weight coating, the improvement wherein said weight coating comprises: a relatively thick layer of a composite material consisting of from 85 to 95% by weight of granulated heavy metal ore bound and embedded i

In a subsea pipe line section of the type including a steel pipe covered with a continuous weight coating, the improvement wherein said weight coating comprises: a relatively thick layer of a composite material consisting of from 85 to 95% by weight of granulated heavy metal ore bound and embedded in a matrix of an epoxy, polyester or acrylic thermosetting resin; a protective sheathing in the form of a high strength, durable plastic tube covering said layer of composite material; and lugs integral with said tube and extending therefrom into said layer of composite material and thereby anchoring said tube to said layer.