FIELD: molding.
SUBSTANCE: group of inventions relates to a method for applying protective sheeting of polymer material to a pipeline, preferably on a J-lay rig, as well as to a device for applying protective sheeting of polymer material to the pipeline, a work station for applying protective sheeting of polymer material to a pipeline. Method includes the steps of driving a carriage along an annular path about the pipeline; extruding and simultaneously winding the protective sheeting about the pipeline by means of an end extrusion die fitted to the carriage. Protective sheeting is compressed on the pipeline, directly downstream from the end extrusion die, so that the protective sheeting adheres to the pipeline. Drive, extrusion, and compression steps are controlled so that the time lapse between expulsion of a cross section of protective sheeting from the end extrusion die and compression of the same cross section of protective sheeting is less than one second.
EFFECT: technical result achieved with the use of the group of inventions is to prevent deformation of the soft protective sheeting between the end extrusion die and the compression zone.
32 cl, 14 dwg
