| 摘要 |
The present invention relates to an apparatus for attaching a metallic wire for sensing location onto a buried polyethylene pipe. In the apparatus, an extruded pipe is mounted in a container, before the extruded pipe is solidified, by extruding a high density polyethylene pipe. A guide pipe body on which lower pressure than the atmospheric pressure applied to the outer surface thereof is mounted near an inlet to guide the input extruded pipe. A guide body with a circular cross section is manufactured by making the extruded pipe pass through a vacuum cooling chamber spraying cooling water from the container. The pipe body is cooled by a cooling apparatus to manufacture a pipe body with a circular cross section. Polyethylene melts which is melted from a separate extruder on the surface of the pipe body and is extruded are attached with a specific width while the finished pipe material is transferred, and metal wires are supplied into a melted object being coated so that the melted object being coated and the metal wire can be attached to the surface of polyethylene pipe material. |
