| 摘要 |
A method of covering the inside surface of a steel connection part having an empty inside volume defined by the inside surface, with a liner constituted by a layer of substantially uniform thickness of a thermoplastic material. The connection part including at least two open tubular ends suitable for being connected respectively to at least two steel pipe elements, each including the same internal liner. A rotary molding method is implemented in which the connection part acts as a mold. A connection part obtained by the rotary lining method is provided, and methods of assembling a connection part, as obtained by rotary lining, with a likewise lined pipe element. |
