| 摘要 |
<p>Combined weight- and insulation casing for subsea pipelines (1) and method for production of the casing. The casing is applied by extrusion of thermoplastics on to the pipes. This makes it possible to produce continuous lengths of insulated pipeline. Compact and foamed plastic with and without weight material incorporated into the plastic can be used. The casing can be formed of alternating layers of plastic with (3) and without (4) weight material. It is preferred to use polypropylene or polyvinyl chloride.</p> |
