DOUBLE WALLED SEWER-CONNECTED FOR UNEVEN FRICTION COEFFICIENT FOR IMPROVED STIFFNESS AND REDUCED COHESION

摘要

The present invention relates to an apparatus for molding a connection-type dual-walled sewer pipe for reducing a friction coefficient for improving strength and coherence and, more specifically, to an apparatus for molding a connection-type dual-walled sewer pipe for reducing a friction coefficient for improving strength and coherence, which comprises: a second extruder for extruding a profile having a hollow; a first extruder for supplying the profile in a spiral form; a third extruder for molding by supplying a connection member between the profiles; and a connection member molding device for extruding a reinforced connection member including a coupling uneven groove formed on both side of inner diameters of the profile, a coupling protrusion formed on both sides of an inner surface unit, and a side surface protrusion unit on the outside of the coupling protrusion. The reinforced connection member extruded from the connection member molding device is coated with one method of extrusion and spray so as to have a color inside with a compound mixed with 93.5-97.5 wt% of a synthetic resin, 2-6 wt% of silicon, and 20.5-1 wt% of TiO.