METHOD FOR FORMING A PROTECTIVE LAYER ON A TUBE

摘要

A method includes: moving the tube (1) in a longitudinal translation movement and simultaneously in rotation; heating the tube (1); depositing a layer of epoxy powder (9) on the outer surface of the tube (1); winding at least one strip of an adhesive material in paste form onto the epoxy layer (9); winding at least one strip of polypropylene in paste form onto the strip of adhesive material (11) such as to form a polypropylene layer (16); cooling the assembly thus obtained; heating the skin of the layer of polypropylene (16) and winding on at least one strip of non-compressible, thermally insulating elastomer in paste form such as to form an elastomer layer (22).