Techniques for coating pipes
    1.
    发明授权

    公开(公告)号:US10160147B2

    公开(公告)日:2018-12-25

    申请号:US14722073

    申请日:2015-05-26

    申请人: Acergy France SAS

    发明人: Philippe Hoffmann

    摘要: A method and apparatus are for coating a field joint of a pipeline. The method includes positioning a mold tool around the field joint to define a mold cavity, positioning an insert to lie within the mold cavity, and injecting plastics material into the mold cavity to embed the insert in the plastics material. The apparatus has a mold tool positionable around the field joint to define a mold cavity, and an insert positionable within the mold cavity to be embedded in plastics material injected into the mold cavity. Use of an insert in this way reduces the volume of the molten thermoplastics material required to coat the field joint, thereby increasing the interface area of the melt relative to its volume, to the benefit of cooling time.